Linux-libre 4.3.2-gnu

25 files changed, 0 insertions, 18158 deletions

diff --git a/fs/ext3/Kconfig b/fs/ext3/Kconfig
deleted file mode 100644
index e8c6ba0e4..000000000
--- a/fs/ext3/Kconfig
+++ /dev/null
@@ -1,89 +0,0 @@
-config EXT3_FS
-	tristate "Ext3 journalling file system support"
-	select JBD
-	help
-	  This is the journalling version of the Second extended file system
-	  (often called ext3), the de facto standard Linux file system
-	  (method to organize files on a storage device) for hard disks.
-
-	  The journalling code included in this driver means you do not have
-	  to run e2fsck (file system checker) on your file systems after a
-	  crash.  The journal keeps track of any changes that were being made
-	  at the time the system crashed, and can ensure that your file system
-	  is consistent without the need for a lengthy check.
-
-	  Other than adding the journal to the file system, the on-disk format
-	  of ext3 is identical to ext2.  It is possible to freely switch
-	  between using the ext3 driver and the ext2 driver, as long as the
-	  file system has been cleanly unmounted, or e2fsck is run on the file
-	  system.
-
-	  To add a journal on an existing ext2 file system or change the
-	  behavior of ext3 file systems, you can use the tune2fs utility ("man
-	  tune2fs").  To modify attributes of files and directories on ext3
-	  file systems, use chattr ("man chattr").  You need to be using
-	  e2fsprogs version 1.20 or later in order to create ext3 journals
-	  (available at <http://sourceforge.net/projects/e2fsprogs/>).
-
-	  To compile this file system support as a module, choose M here: the
-	  module will be called ext3.
-
-config EXT3_DEFAULTS_TO_ORDERED
-	bool "Default to 'data=ordered' in ext3"
-	depends on EXT3_FS
-	default y
-	help
-	  The journal mode options for ext3 have different tradeoffs
-	  between when data is guaranteed to be on disk and
-	  performance.	The use of "data=writeback" can cause
-	  unwritten data to appear in files after an system crash or
-	  power failure, which can be a security issue.	 However,
-	  "data=ordered" mode can also result in major performance
-	  problems, including seconds-long delays before an fsync()
-	  call returns.	 For details, see:
-
-	  http://ext4.wiki.kernel.org/index.php/Ext3_data_mode_tradeoffs
-
-	  If you have been historically happy with ext3's performance,
-	  data=ordered mode will be a safe choice and you should
-	  answer 'y' here.  If you understand the reliability and data
-	  privacy issues of data=writeback and are willing to make
-	  that trade off, answer 'n'.
-
-config EXT3_FS_XATTR
-	bool "Ext3 extended attributes"
-	depends on EXT3_FS
-	default y
-	help
-	  Extended attributes are name:value pairs associated with inodes by
-	  the kernel or by users (see the attr(5) manual page, or visit
-	  <http://acl.bestbits.at/> for details).
-
-	  If unsure, say N.
-
-	  You need this for POSIX ACL support on ext3.
-
-config EXT3_FS_POSIX_ACL
-	bool "Ext3 POSIX Access Control Lists"
-	depends on EXT3_FS_XATTR
-	select FS_POSIX_ACL
-	help
-	  Posix Access Control Lists (ACLs) support permissions for users and
-	  groups beyond the owner/group/world scheme.
-
-	  To learn more about Access Control Lists, visit the Posix ACLs for
-	  Linux website <http://acl.bestbits.at/>.
-
-	  If you don't know what Access Control Lists are, say N
-
-config EXT3_FS_SECURITY
-	bool "Ext3 Security Labels"
-	depends on EXT3_FS_XATTR
-	help
-	  Security labels support alternative access control models
-	  implemented by security modules like SELinux.  This option
-	  enables an extended attribute handler for file security
-	  labels in the ext3 filesystem.
-
-	  If you are not using a security module that requires using
-	  extended attributes for file security labels, say N.
diff --git a/fs/ext3/Makefile b/fs/ext3/Makefile
deleted file mode 100644
index e77766a8b..000000000
--- a/fs/ext3/Makefile
+++ /dev/null
@@ -1,12 +0,0 @@
-#
-# Makefile for the linux ext3-filesystem routines.
-#
-
-obj-$(CONFIG_EXT3_FS) += ext3.o
-
-ext3-y	:= balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
-	   ioctl.o namei.o super.o symlink.o hash.o resize.o ext3_jbd.o
-
-ext3-$(CONFIG_EXT3_FS_XATTR)	 += xattr.o xattr_user.o xattr_trusted.o
-ext3-$(CONFIG_EXT3_FS_POSIX_ACL) += acl.o
-ext3-$(CONFIG_EXT3_FS_SECURITY)	 += xattr_security.o
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
deleted file mode 100644
index 8bbaf5bcf..000000000
--- a/fs/ext3/acl.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- * linux/fs/ext3/acl.c
- *
- * Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
- */
-
-#include "ext3.h"
-#include "xattr.h"
-#include "acl.h"
-
-/*
- * Convert from filesystem to in-memory representation.
- */
-static struct posix_acl *
-ext3_acl_from_disk(const void *value, size_t size)
-{
-	const char *end = (char *)value + size;
-	int n, count;
-	struct posix_acl *acl;
-
-	if (!value)
-		return NULL;
-	if (size < sizeof(ext3_acl_header))
-		 return ERR_PTR(-EINVAL);
-	if (((ext3_acl_header *)value)->a_version !=
-	    cpu_to_le32(EXT3_ACL_VERSION))
-		return ERR_PTR(-EINVAL);
-	value = (char *)value + sizeof(ext3_acl_header);
-	count = ext3_acl_count(size);
-	if (count < 0)
-		return ERR_PTR(-EINVAL);
-	if (count == 0)
-		return NULL;
-	acl = posix_acl_alloc(count, GFP_NOFS);
-	if (!acl)
-		return ERR_PTR(-ENOMEM);
-	for (n=0; n < count; n++) {
-		ext3_acl_entry *entry =
-			(ext3_acl_entry *)value;
-		if ((char *)value + sizeof(ext3_acl_entry_short) > end)
-			goto fail;
-		acl->a_entries[n].e_tag  = le16_to_cpu(entry->e_tag);
-		acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm);
-		switch(acl->a_entries[n].e_tag) {
-			case ACL_USER_OBJ:
-			case ACL_GROUP_OBJ:
-			case ACL_MASK:
-			case ACL_OTHER:
-				value = (char *)value +
-					sizeof(ext3_acl_entry_short);
-				break;
-
-			case ACL_USER:
-				value = (char *)value + sizeof(ext3_acl_entry);
-				if ((char *)value > end)
-					goto fail;
-				acl->a_entries[n].e_uid =
-					make_kuid(&init_user_ns,
-						  le32_to_cpu(entry->e_id));
-				break;
-			case ACL_GROUP:
-				value = (char *)value + sizeof(ext3_acl_entry);
-				if ((char *)value > end)
-					goto fail;
-				acl->a_entries[n].e_gid =
-					make_kgid(&init_user_ns,
-						  le32_to_cpu(entry->e_id));
-				break;
-
-			default:
-				goto fail;
-		}
-	}
-	if (value != end)
-		goto fail;
-	return acl;
-
-fail:
-	posix_acl_release(acl);
-	return ERR_PTR(-EINVAL);
-}
-
-/*
- * Convert from in-memory to filesystem representation.
- */
-static void *
-ext3_acl_to_disk(const struct posix_acl *acl, size_t *size)
-{
-	ext3_acl_header *ext_acl;
-	char *e;
-	size_t n;
-
-	*size = ext3_acl_size(acl->a_count);
-	ext_acl = kmalloc(sizeof(ext3_acl_header) + acl->a_count *
-			sizeof(ext3_acl_entry), GFP_NOFS);
-	if (!ext_acl)
-		return ERR_PTR(-ENOMEM);
-	ext_acl->a_version = cpu_to_le32(EXT3_ACL_VERSION);
-	e = (char *)ext_acl + sizeof(ext3_acl_header);
-	for (n=0; n < acl->a_count; n++) {
-		const struct posix_acl_entry *acl_e = &acl->a_entries[n];
-		ext3_acl_entry *entry = (ext3_acl_entry *)e;
-		entry->e_tag  = cpu_to_le16(acl_e->e_tag);
-		entry->e_perm = cpu_to_le16(acl_e->e_perm);
-		switch(acl_e->e_tag) {
-			case ACL_USER:
-				entry->e_id = cpu_to_le32(
-					from_kuid(&init_user_ns, acl_e->e_uid));
-				e += sizeof(ext3_acl_entry);
-				break;
-			case ACL_GROUP:
-				entry->e_id = cpu_to_le32(
-					from_kgid(&init_user_ns, acl_e->e_gid));
-				e += sizeof(ext3_acl_entry);
-				break;
-
-			case ACL_USER_OBJ:
-			case ACL_GROUP_OBJ:
-			case ACL_MASK:
-			case ACL_OTHER:
-				e += sizeof(ext3_acl_entry_short);
-				break;
-
-			default:
-				goto fail;
-		}
-	}
-	return (char *)ext_acl;
-
-fail:
-	kfree(ext_acl);
-	return ERR_PTR(-EINVAL);
-}
-
-/*
- * Inode operation get_posix_acl().
- *
- * inode->i_mutex: don't care
- */
-struct posix_acl *
-ext3_get_acl(struct inode *inode, int type)
-{
-	int name_index;
-	char *value = NULL;
-	struct posix_acl *acl;
-	int retval;
-
-	switch (type) {
-	case ACL_TYPE_ACCESS:
-		name_index = EXT3_XATTR_INDEX_POSIX_ACL_ACCESS;
-		break;
-	case ACL_TYPE_DEFAULT:
-		name_index = EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT;
-		break;
-	default:
-		BUG();
-	}
-
-	retval = ext3_xattr_get(inode, name_index, "", NULL, 0);
-	if (retval > 0) {
-		value = kmalloc(retval, GFP_NOFS);
-		if (!value)
-			return ERR_PTR(-ENOMEM);
-		retval = ext3_xattr_get(inode, name_index, "", value, retval);
-	}
-	if (retval > 0)
-		acl = ext3_acl_from_disk(value, retval);
-	else if (retval == -ENODATA || retval == -ENOSYS)
-		acl = NULL;
-	else
-		acl = ERR_PTR(retval);
-	kfree(value);
-
-	if (!IS_ERR(acl))
-		set_cached_acl(inode, type, acl);
-
-	return acl;
-}
-
-/*
- * Set the access or default ACL of an inode.
- *
- * inode->i_mutex: down unless called from ext3_new_inode
- */
-static int
-__ext3_set_acl(handle_t *handle, struct inode *inode, int type,
-	     struct posix_acl *acl)
-{
-	int name_index;
-	void *value = NULL;
-	size_t size = 0;
-	int error;
-
-	switch(type) {
-		case ACL_TYPE_ACCESS:
-			name_index = EXT3_XATTR_INDEX_POSIX_ACL_ACCESS;
-			if (acl) {
-				error = posix_acl_equiv_mode(acl, &inode->i_mode);
-				if (error < 0)
-					return error;
-				else {
-					inode->i_ctime = CURRENT_TIME_SEC;
-					ext3_mark_inode_dirty(handle, inode);
-					if (error == 0)
-						acl = NULL;
-				}
-			}
-			break;
-
-		case ACL_TYPE_DEFAULT:
-			name_index = EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT;
-			if (!S_ISDIR(inode->i_mode))
-				return acl ? -EACCES : 0;
-			break;
-
-		default:
-			return -EINVAL;
-	}
-	if (acl) {
-		value = ext3_acl_to_disk(acl, &size);
-		if (IS_ERR(value))
-			return (int)PTR_ERR(value);
-	}
-
-	error = ext3_xattr_set_handle(handle, inode, name_index, "",
-				      value, size, 0);
-
-	kfree(value);
-
-	if (!error)
-		set_cached_acl(inode, type, acl);
-
-	return error;
-}
-
-int
-ext3_set_acl(struct inode *inode, struct posix_acl *acl, int type)
-{
-	handle_t *handle;
-	int error, retries = 0;
-
-retry:
-	handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-	error = __ext3_set_acl(handle, inode, type, acl);
-	ext3_journal_stop(handle);
-	if (error == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries))
-		goto retry;
-	return error;
-}
-
-/*
- * Initialize the ACLs of a new inode. Called from ext3_new_inode.
- *
- * dir->i_mutex: down
- * inode->i_mutex: up (access to inode is still exclusive)
- */
-int
-ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
-{
-	struct posix_acl *default_acl, *acl;
-	int error;
-
-	error = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
-	if (error)
-		return error;
-
-	if (default_acl) {
-		error = __ext3_set_acl(handle, inode, ACL_TYPE_DEFAULT,
-				       default_acl);
-		posix_acl_release(default_acl);
-	}
-	if (acl) {
-		if (!error)
-			error = __ext3_set_acl(handle, inode, ACL_TYPE_ACCESS,
-					       acl);
-		posix_acl_release(acl);
-	}
-	return error;
-}
diff --git a/fs/ext3/acl.h b/fs/ext3/acl.h
deleted file mode 100644
index ea1c69eda..000000000
--- a/fs/ext3/acl.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
-  File: fs/ext3/acl.h
-
-  (C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
-*/
-
-#include <linux/posix_acl_xattr.h>
-
-#define EXT3_ACL_VERSION	0x0001
-
-typedef struct {
-	__le16		e_tag;
-	__le16		e_perm;
-	__le32		e_id;
-} ext3_acl_entry;
-
-typedef struct {
-	__le16		e_tag;
-	__le16		e_perm;
-} ext3_acl_entry_short;
-
-typedef struct {
-	__le32		a_version;
-} ext3_acl_header;
-
-static inline size_t ext3_acl_size(int count)
-{
-	if (count <= 4) {
-		return sizeof(ext3_acl_header) +
-		       count * sizeof(ext3_acl_entry_short);
-	} else {
-		return sizeof(ext3_acl_header) +
-		       4 * sizeof(ext3_acl_entry_short) +
-		       (count - 4) * sizeof(ext3_acl_entry);
-	}
-}
-
-static inline int ext3_acl_count(size_t size)
-{
-	ssize_t s;
-	size -= sizeof(ext3_acl_header);
-	s = size - 4 * sizeof(ext3_acl_entry_short);
-	if (s < 0) {
-		if (size % sizeof(ext3_acl_entry_short))
-			return -1;
-		return size / sizeof(ext3_acl_entry_short);
-	} else {
-		if (s % sizeof(ext3_acl_entry))
-			return -1;
-		return s / sizeof(ext3_acl_entry) + 4;
-	}
-}
-
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
-
-/* acl.c */
-extern struct posix_acl *ext3_get_acl(struct inode *inode, int type);
-extern int ext3_set_acl(struct inode *inode, struct posix_acl *acl, int type);
-extern int ext3_init_acl (handle_t *, struct inode *, struct inode *);
-
-#else  /* CONFIG_EXT3_FS_POSIX_ACL */
-#include <linux/sched.h>
-#define ext3_get_acl NULL
-#define ext3_set_acl NULL
-
-static inline int
-ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
-{
-	return 0;
-}
-#endif  /* CONFIG_EXT3_FS_POSIX_ACL */
-
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
deleted file mode 100644
index 158b5d4ce..000000000
--- a/fs/ext3/balloc.c
+++ /dev/null
@@ -1,2158 +0,0 @@
-/*
- *  linux/fs/ext3/balloc.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- *  Enhanced block allocation by Stephen Tweedie (sct@redhat.com), 1993
- *  Big-endian to little-endian byte-swapping/bitmaps by
- *        David S. Miller (davem@caip.rutgers.edu), 1995
- */
-
-#include <linux/quotaops.h>
-#include <linux/blkdev.h>
-#include "ext3.h"
-
-/*
- * balloc.c contains the blocks allocation and deallocation routines
- */
-
-/*
- * The free blocks are managed by bitmaps.  A file system contains several
- * blocks groups.  Each group contains 1 bitmap block for blocks, 1 bitmap
- * block for inodes, N blocks for the inode table and data blocks.
- *
- * The file system contains group descriptors which are located after the
- * super block.  Each descriptor contains the number of the bitmap block and
- * the free blocks count in the block.  The descriptors are loaded in memory
- * when a file system is mounted (see ext3_fill_super).
- */
-
-
-#define in_range(b, first, len)	((b) >= (first) && (b) <= (first) + (len) - 1)
-
-/*
- * Calculate the block group number and offset, given a block number
- */
-static void ext3_get_group_no_and_offset(struct super_block *sb,
-	ext3_fsblk_t blocknr, unsigned long *blockgrpp, ext3_grpblk_t *offsetp)
-{
-	struct ext3_super_block *es = EXT3_SB(sb)->s_es;
-
-	blocknr = blocknr - le32_to_cpu(es->s_first_data_block);
-	if (offsetp)
-		*offsetp = blocknr % EXT3_BLOCKS_PER_GROUP(sb);
-	if (blockgrpp)
-		*blockgrpp = blocknr / EXT3_BLOCKS_PER_GROUP(sb);
-}
-
-/**
- * ext3_get_group_desc() -- load group descriptor from disk
- * @sb:			super block
- * @block_group:	given block group
- * @bh:			pointer to the buffer head to store the block
- *			group descriptor
- */
-struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
-					     unsigned int block_group,
-					     struct buffer_head ** bh)
-{
-	unsigned long group_desc;
-	unsigned long offset;
-	struct ext3_group_desc * desc;
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-
-	if (block_group >= sbi->s_groups_count) {
-		ext3_error (sb, "ext3_get_group_desc",
-			    "block_group >= groups_count - "
-			    "block_group = %d, groups_count = %lu",
-			    block_group, sbi->s_groups_count);
-
-		return NULL;
-	}
-	smp_rmb();
-
-	group_desc = block_group >> EXT3_DESC_PER_BLOCK_BITS(sb);
-	offset = block_group & (EXT3_DESC_PER_BLOCK(sb) - 1);
-	if (!sbi->s_group_desc[group_desc]) {
-		ext3_error (sb, "ext3_get_group_desc",
-			    "Group descriptor not loaded - "
-			    "block_group = %d, group_desc = %lu, desc = %lu",
-			     block_group, group_desc, offset);
-		return NULL;
-	}
-
-	desc = (struct ext3_group_desc *) sbi->s_group_desc[group_desc]->b_data;
-	if (bh)
-		*bh = sbi->s_group_desc[group_desc];
-	return desc + offset;
-}
-
-static int ext3_valid_block_bitmap(struct super_block *sb,
-					struct ext3_group_desc *desc,
-					unsigned int block_group,
-					struct buffer_head *bh)
-{
-	ext3_grpblk_t offset;
-	ext3_grpblk_t next_zero_bit;
-	ext3_fsblk_t bitmap_blk;
-	ext3_fsblk_t group_first_block;
-
-	group_first_block = ext3_group_first_block_no(sb, block_group);
-
-	/* check whether block bitmap block number is set */
-	bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
-	offset = bitmap_blk - group_first_block;
-	if (!ext3_test_bit(offset, bh->b_data))
-		/* bad block bitmap */
-		goto err_out;
-
-	/* check whether the inode bitmap block number is set */
-	bitmap_blk = le32_to_cpu(desc->bg_inode_bitmap);
-	offset = bitmap_blk - group_first_block;
-	if (!ext3_test_bit(offset, bh->b_data))
-		/* bad block bitmap */
-		goto err_out;
-
-	/* check whether the inode table block number is set */
-	bitmap_blk = le32_to_cpu(desc->bg_inode_table);
-	offset = bitmap_blk - group_first_block;
-	next_zero_bit = ext3_find_next_zero_bit(bh->b_data,
-				offset + EXT3_SB(sb)->s_itb_per_group,
-				offset);
-	if (next_zero_bit >= offset + EXT3_SB(sb)->s_itb_per_group)
-		/* good bitmap for inode tables */
-		return 1;
-
-err_out:
-	ext3_error(sb, __func__,
-			"Invalid block bitmap - "
-			"block_group = %d, block = %lu",
-			block_group, bitmap_blk);
-	return 0;
-}
-
-/**
- * read_block_bitmap()
- * @sb:			super block
- * @block_group:	given block group
- *
- * Read the bitmap for a given block_group,and validate the
- * bits for block/inode/inode tables are set in the bitmaps
- *
- * Return buffer_head on success or NULL in case of failure.
- */
-static struct buffer_head *
-read_block_bitmap(struct super_block *sb, unsigned int block_group)
-{
-	struct ext3_group_desc * desc;
-	struct buffer_head * bh = NULL;
-	ext3_fsblk_t bitmap_blk;
-
-	desc = ext3_get_group_desc(sb, block_group, NULL);
-	if (!desc)
-		return NULL;
-	trace_ext3_read_block_bitmap(sb, block_group);
-	bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
-	bh = sb_getblk(sb, bitmap_blk);
-	if (unlikely(!bh)) {
-		ext3_error(sb, __func__,
-			    "Cannot read block bitmap - "
-			    "block_group = %d, block_bitmap = %u",
-			    block_group, le32_to_cpu(desc->bg_block_bitmap));
-		return NULL;
-	}
-	if (likely(bh_uptodate_or_lock(bh)))
-		return bh;
-
-	if (bh_submit_read(bh) < 0) {
-		brelse(bh);
-		ext3_error(sb, __func__,
-			    "Cannot read block bitmap - "
-			    "block_group = %d, block_bitmap = %u",
-			    block_group, le32_to_cpu(desc->bg_block_bitmap));
-		return NULL;
-	}
-	ext3_valid_block_bitmap(sb, desc, block_group, bh);
-	/*
-	 * file system mounted not to panic on error, continue with corrupt
-	 * bitmap
-	 */
-	return bh;
-}
-/*
- * The reservation window structure operations
- * --------------------------------------------
- * Operations include:
- * dump, find, add, remove, is_empty, find_next_reservable_window, etc.
- *
- * We use a red-black tree to represent per-filesystem reservation
- * windows.
- *
- */
-
-/**
- * __rsv_window_dump() -- Dump the filesystem block allocation reservation map
- * @rb_root:		root of per-filesystem reservation rb tree
- * @verbose:		verbose mode
- * @fn:			function which wishes to dump the reservation map
- *
- * If verbose is turned on, it will print the whole block reservation
- * windows(start, end).	Otherwise, it will only print out the "bad" windows,
- * those windows that overlap with their immediate neighbors.
- */
-#if 1
-static void __rsv_window_dump(struct rb_root *root, int verbose,
-			      const char *fn)
-{
-	struct rb_node *n;
-	struct ext3_reserve_window_node *rsv, *prev;
-	int bad;
-
-restart:
-	n = rb_first(root);
-	bad = 0;
-	prev = NULL;
-
-	printk("Block Allocation Reservation Windows Map (%s):\n", fn);
-	while (n) {
-		rsv = rb_entry(n, struct ext3_reserve_window_node, rsv_node);
-		if (verbose)
-			printk("reservation window 0x%p "
-			       "start:  %lu, end:  %lu\n",
-			       rsv, rsv->rsv_start, rsv->rsv_end);
-		if (rsv->rsv_start && rsv->rsv_start >= rsv->rsv_end) {
-			printk("Bad reservation %p (start >= end)\n",
-			       rsv);
-			bad = 1;
-		}
-		if (prev && prev->rsv_end >= rsv->rsv_start) {
-			printk("Bad reservation %p (prev->end >= start)\n",
-			       rsv);
-			bad = 1;
-		}
-		if (bad) {
-			if (!verbose) {
-				printk("Restarting reservation walk in verbose mode\n");
-				verbose = 1;
-				goto restart;
-			}
-		}
-		n = rb_next(n);
-		prev = rsv;
-	}
-	printk("Window map complete.\n");
-	BUG_ON(bad);
-}
-#define rsv_window_dump(root, verbose) \
-	__rsv_window_dump((root), (verbose), __func__)
-#else
-#define rsv_window_dump(root, verbose) do {} while (0)
-#endif
-
-/**
- * goal_in_my_reservation()
- * @rsv:		inode's reservation window
- * @grp_goal:		given goal block relative to the allocation block group
- * @group:		the current allocation block group
- * @sb:			filesystem super block
- *
- * Test if the given goal block (group relative) is within the file's
- * own block reservation window range.
- *
- * If the reservation window is outside the goal allocation group, return 0;
- * grp_goal (given goal block) could be -1, which means no specific
- * goal block. In this case, always return 1.
- * If the goal block is within the reservation window, return 1;
- * otherwise, return 0;
- */
-static int
-goal_in_my_reservation(struct ext3_reserve_window *rsv, ext3_grpblk_t grp_goal,
-			unsigned int group, struct super_block * sb)
-{
-	ext3_fsblk_t group_first_block, group_last_block;
-
-	group_first_block = ext3_group_first_block_no(sb, group);
-	group_last_block = group_first_block + (EXT3_BLOCKS_PER_GROUP(sb) - 1);
-
-	if ((rsv->_rsv_start > group_last_block) ||
-	    (rsv->_rsv_end < group_first_block))
-		return 0;
-	if ((grp_goal >= 0) && ((grp_goal + group_first_block < rsv->_rsv_start)
-		|| (grp_goal + group_first_block > rsv->_rsv_end)))
-		return 0;
-	return 1;
-}
-
-/**
- * search_reserve_window()
- * @rb_root:		root of reservation tree
- * @goal:		target allocation block
- *
- * Find the reserved window which includes the goal, or the previous one
- * if the goal is not in any window.
- * Returns NULL if there are no windows or if all windows start after the goal.
- */
-static struct ext3_reserve_window_node *
-search_reserve_window(struct rb_root *root, ext3_fsblk_t goal)
-{
-	struct rb_node *n = root->rb_node;
-	struct ext3_reserve_window_node *rsv;
-
-	if (!n)
-		return NULL;
-
-	do {
-		rsv = rb_entry(n, struct ext3_reserve_window_node, rsv_node);
-
-		if (goal < rsv->rsv_start)
-			n = n->rb_left;
-		else if (goal > rsv->rsv_end)
-			n = n->rb_right;
-		else
-			return rsv;
-	} while (n);
-	/*
-	 * We've fallen off the end of the tree: the goal wasn't inside
-	 * any particular node.  OK, the previous node must be to one
-	 * side of the interval containing the goal.  If it's the RHS,
-	 * we need to back up one.
-	 */
-	if (rsv->rsv_start > goal) {
-		n = rb_prev(&rsv->rsv_node);
-		rsv = rb_entry(n, struct ext3_reserve_window_node, rsv_node);
-	}
-	return rsv;
-}
-
-/**
- * ext3_rsv_window_add() -- Insert a window to the block reservation rb tree.
- * @sb:			super block
- * @rsv:		reservation window to add
- *
- * Must be called with rsv_lock hold.
- */
-void ext3_rsv_window_add(struct super_block *sb,
-		    struct ext3_reserve_window_node *rsv)
-{
-	struct rb_root *root = &EXT3_SB(sb)->s_rsv_window_root;
-	struct rb_node *node = &rsv->rsv_node;
-	ext3_fsblk_t start = rsv->rsv_start;
-
-	struct rb_node ** p = &root->rb_node;
-	struct rb_node * parent = NULL;
-	struct ext3_reserve_window_node *this;
-
-	trace_ext3_rsv_window_add(sb, rsv);
-	while (*p)
-	{
-		parent = *p;
-		this = rb_entry(parent, struct ext3_reserve_window_node, rsv_node);
-
-		if (start < this->rsv_start)
-			p = &(*p)->rb_left;
-		else if (start > this->rsv_end)
-			p = &(*p)->rb_right;
-		else {
-			rsv_window_dump(root, 1);
-			BUG();
-		}
-	}
-
-	rb_link_node(node, parent, p);
-	rb_insert_color(node, root);
-}
-
-/**
- * ext3_rsv_window_remove() -- unlink a window from the reservation rb tree
- * @sb:			super block
- * @rsv:		reservation window to remove
- *
- * Mark the block reservation window as not allocated, and unlink it
- * from the filesystem reservation window rb tree. Must be called with
- * rsv_lock hold.
- */
-static void rsv_window_remove(struct super_block *sb,
-			      struct ext3_reserve_window_node *rsv)
-{
-	rsv->rsv_start = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
-	rsv->rsv_end = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
-	rsv->rsv_alloc_hit = 0;
-	rb_erase(&rsv->rsv_node, &EXT3_SB(sb)->s_rsv_window_root);
-}
-
-/*
- * rsv_is_empty() -- Check if the reservation window is allocated.
- * @rsv:		given reservation window to check
- *
- * returns 1 if the end block is EXT3_RESERVE_WINDOW_NOT_ALLOCATED.
- */
-static inline int rsv_is_empty(struct ext3_reserve_window *rsv)
-{
-	/* a valid reservation end block could not be 0 */
-	return rsv->_rsv_end == EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
-}
-
-/**
- * ext3_init_block_alloc_info()
- * @inode:		file inode structure
- *
- * Allocate and initialize the	reservation window structure, and
- * link the window to the ext3 inode structure at last
- *
- * The reservation window structure is only dynamically allocated
- * and linked to ext3 inode the first time the open file
- * needs a new block. So, before every ext3_new_block(s) call, for
- * regular files, we should check whether the reservation window
- * structure exists or not. In the latter case, this function is called.
- * Fail to do so will result in block reservation being turned off for that
- * open file.
- *
- * This function is called from ext3_get_blocks_handle(), also called
- * when setting the reservation window size through ioctl before the file
- * is open for write (needs block allocation).
- *
- * Needs truncate_mutex protection prior to call this function.
- */
-void ext3_init_block_alloc_info(struct inode *inode)
-{
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	struct ext3_block_alloc_info *block_i;
-	struct super_block *sb = inode->i_sb;
-
-	block_i = kmalloc(sizeof(*block_i), GFP_NOFS);
-	if (block_i) {
-		struct ext3_reserve_window_node *rsv = &block_i->rsv_window_node;
-
-		rsv->rsv_start = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
-		rsv->rsv_end = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
-
-		/*
-		 * if filesystem is mounted with NORESERVATION, the goal
-		 * reservation window size is set to zero to indicate
-		 * block reservation is off
-		 */
-		if (!test_opt(sb, RESERVATION))
-			rsv->rsv_goal_size = 0;
-		else
-			rsv->rsv_goal_size = EXT3_DEFAULT_RESERVE_BLOCKS;
-		rsv->rsv_alloc_hit = 0;
-		block_i->last_alloc_logical_block = 0;
-		block_i->last_alloc_physical_block = 0;
-	}
-	ei->i_block_alloc_info = block_i;
-}
-
-/**
- * ext3_discard_reservation()
- * @inode:		inode
- *
- * Discard(free) block reservation window on last file close, or truncate
- * or at last iput().
- *
- * It is being called in three cases:
- *	ext3_release_file(): last writer close the file
- *	ext3_clear_inode(): last iput(), when nobody link to this file.
- *	ext3_truncate(): when the block indirect map is about to change.
- *
- */
-void ext3_discard_reservation(struct inode *inode)
-{
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	struct ext3_block_alloc_info *block_i = ei->i_block_alloc_info;
-	struct ext3_reserve_window_node *rsv;
-	spinlock_t *rsv_lock = &EXT3_SB(inode->i_sb)->s_rsv_window_lock;
-
-	if (!block_i)
-		return;
-
-	rsv = &block_i->rsv_window_node;
-	if (!rsv_is_empty(&rsv->rsv_window)) {
-		spin_lock(rsv_lock);
-		if (!rsv_is_empty(&rsv->rsv_window)) {
-			trace_ext3_discard_reservation(inode, rsv);
-			rsv_window_remove(inode->i_sb, rsv);
-		}
-		spin_unlock(rsv_lock);
-	}
-}
-
-/**
- * ext3_free_blocks_sb() -- Free given blocks and update quota
- * @handle:			handle to this transaction
- * @sb:				super block
- * @block:			start physical block to free
- * @count:			number of blocks to free
- * @pdquot_freed_blocks:	pointer to quota
- */
-void ext3_free_blocks_sb(handle_t *handle, struct super_block *sb,
-			 ext3_fsblk_t block, unsigned long count,
-			 unsigned long *pdquot_freed_blocks)
-{
-	struct buffer_head *bitmap_bh = NULL;
-	struct buffer_head *gd_bh;
-	unsigned long block_group;
-	ext3_grpblk_t bit;
-	unsigned long i;
-	unsigned long overflow;
-	struct ext3_group_desc * desc;
-	struct ext3_super_block * es;
-	struct ext3_sb_info *sbi;
-	int err = 0, ret;
-	ext3_grpblk_t group_freed;
-
-	*pdquot_freed_blocks = 0;
-	sbi = EXT3_SB(sb);
-	es = sbi->s_es;
-	if (block < le32_to_cpu(es->s_first_data_block) ||
-	    block + count < block ||
-	    block + count > le32_to_cpu(es->s_blocks_count)) {
-		ext3_error (sb, "ext3_free_blocks",
-			    "Freeing blocks not in datazone - "
-			    "block = "E3FSBLK", count = %lu", block, count);
-		goto error_return;
-	}
-
-	ext3_debug ("freeing block(s) %lu-%lu\n", block, block + count - 1);
-
-do_more:
-	overflow = 0;
-	block_group = (block - le32_to_cpu(es->s_first_data_block)) /
-		      EXT3_BLOCKS_PER_GROUP(sb);
-	bit = (block - le32_to_cpu(es->s_first_data_block)) %
-		      EXT3_BLOCKS_PER_GROUP(sb);
-	/*
-	 * Check to see if we are freeing blocks across a group
-	 * boundary.
-	 */
-	if (bit + count > EXT3_BLOCKS_PER_GROUP(sb)) {
-		overflow = bit + count - EXT3_BLOCKS_PER_GROUP(sb);
-		count -= overflow;
-	}
-	brelse(bitmap_bh);
-	bitmap_bh = read_block_bitmap(sb, block_group);
-	if (!bitmap_bh)
-		goto error_return;
-	desc = ext3_get_group_desc (sb, block_group, &gd_bh);
-	if (!desc)
-		goto error_return;
-
-	if (in_range (le32_to_cpu(desc->bg_block_bitmap), block, count) ||
-	    in_range (le32_to_cpu(desc->bg_inode_bitmap), block, count) ||
-	    in_range (block, le32_to_cpu(desc->bg_inode_table),
-		      sbi->s_itb_per_group) ||
-	    in_range (block + count - 1, le32_to_cpu(desc->bg_inode_table),
-		      sbi->s_itb_per_group)) {
-		ext3_error (sb, "ext3_free_blocks",
-			    "Freeing blocks in system zones - "
-			    "Block = "E3FSBLK", count = %lu",
-			    block, count);
-		goto error_return;
-	}
-
-	/*
-	 * We are about to start releasing blocks in the bitmap,
-	 * so we need undo access.
-	 */
-	/* @@@ check errors */
-	BUFFER_TRACE(bitmap_bh, "getting undo access");
-	err = ext3_journal_get_undo_access(handle, bitmap_bh);
-	if (err)
-		goto error_return;
-
-	/*
-	 * We are about to modify some metadata.  Call the journal APIs
-	 * to unshare ->b_data if a currently-committing transaction is
-	 * using it
-	 */
-	BUFFER_TRACE(gd_bh, "get_write_access");
-	err = ext3_journal_get_write_access(handle, gd_bh);
-	if (err)
-		goto error_return;
-
-	jbd_lock_bh_state(bitmap_bh);
-
-	for (i = 0, group_freed = 0; i < count; i++) {
-		/*
-		 * An HJ special.  This is expensive...
-		 */
-#ifdef CONFIG_JBD_DEBUG
-		jbd_unlock_bh_state(bitmap_bh);
-		{
-			struct buffer_head *debug_bh;
-			debug_bh = sb_find_get_block(sb, block + i);
-			if (debug_bh) {
-				BUFFER_TRACE(debug_bh, "Deleted!");
-				if (!bh2jh(bitmap_bh)->b_committed_data)
-					BUFFER_TRACE(debug_bh,
-						"No committed data in bitmap");
-				BUFFER_TRACE2(debug_bh, bitmap_bh, "bitmap");
-				__brelse(debug_bh);
-			}
-		}
-		jbd_lock_bh_state(bitmap_bh);
-#endif
-		if (need_resched()) {
-			jbd_unlock_bh_state(bitmap_bh);
-			cond_resched();
-			jbd_lock_bh_state(bitmap_bh);
-		}
-		/* @@@ This prevents newly-allocated data from being
-		 * freed and then reallocated within the same
-		 * transaction.
-		 *
-		 * Ideally we would want to allow that to happen, but to
-		 * do so requires making journal_forget() capable of
-		 * revoking the queued write of a data block, which
-		 * implies blocking on the journal lock.  *forget()
-		 * cannot block due to truncate races.
-		 *
-		 * Eventually we can fix this by making journal_forget()
-		 * return a status indicating whether or not it was able
-		 * to revoke the buffer.  On successful revoke, it is
-		 * safe not to set the allocation bit in the committed
-		 * bitmap, because we know that there is no outstanding
-		 * activity on the buffer any more and so it is safe to
-		 * reallocate it.
-		 */
-		BUFFER_TRACE(bitmap_bh, "set in b_committed_data");
-		J_ASSERT_BH(bitmap_bh,
-				bh2jh(bitmap_bh)->b_committed_data != NULL);
-		ext3_set_bit_atomic(sb_bgl_lock(sbi, block_group), bit + i,
-				bh2jh(bitmap_bh)->b_committed_data);
-
-		/*
-		 * We clear the bit in the bitmap after setting the committed
-		 * data bit, because this is the reverse order to that which
-		 * the allocator uses.
-		 */
-		BUFFER_TRACE(bitmap_bh, "clear bit");
-		if (!ext3_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
-						bit + i, bitmap_bh->b_data)) {
-			jbd_unlock_bh_state(bitmap_bh);
-			ext3_error(sb, __func__,
-				"bit already cleared for block "E3FSBLK,
-				 block + i);
-			jbd_lock_bh_state(bitmap_bh);
-			BUFFER_TRACE(bitmap_bh, "bit already cleared");
-		} else {
-			group_freed++;
-		}
-	}
-	jbd_unlock_bh_state(bitmap_bh);
-
-	spin_lock(sb_bgl_lock(sbi, block_group));
-	le16_add_cpu(&desc->bg_free_blocks_count, group_freed);
-	spin_unlock(sb_bgl_lock(sbi, block_group));
-	percpu_counter_add(&sbi->s_freeblocks_counter, count);
-
-	/* We dirtied the bitmap block */
-	BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");
-	err = ext3_journal_dirty_metadata(handle, bitmap_bh);
-
-	/* And the group descriptor block */
-	BUFFER_TRACE(gd_bh, "dirtied group descriptor block");
-	ret = ext3_journal_dirty_metadata(handle, gd_bh);
-	if (!err) err = ret;
-	*pdquot_freed_blocks += group_freed;
-
-	if (overflow && !err) {
-		block += count;
-		count = overflow;
-		goto do_more;
-	}
-
-error_return:
-	brelse(bitmap_bh);
-	ext3_std_error(sb, err);
-	return;
-}
-
-/**
- * ext3_free_blocks() -- Free given blocks and update quota
- * @handle:		handle for this transaction
- * @inode:		inode
- * @block:		start physical block to free
- * @count:		number of blocks to count
- */
-void ext3_free_blocks(handle_t *handle, struct inode *inode,
-			ext3_fsblk_t block, unsigned long count)
-{
-	struct super_block *sb = inode->i_sb;
-	unsigned long dquot_freed_blocks;
-
-	trace_ext3_free_blocks(inode, block, count);
-	ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
-	if (dquot_freed_blocks)
-		dquot_free_block(inode, dquot_freed_blocks);
-	return;
-}
-
-/**
- * ext3_test_allocatable()
- * @nr:			given allocation block group
- * @bh:			bufferhead contains the bitmap of the given block group
- *
- * For ext3 allocations, we must not reuse any blocks which are
- * allocated in the bitmap buffer's "last committed data" copy.  This
- * prevents deletes from freeing up the page for reuse until we have
- * committed the delete transaction.
- *
- * If we didn't do this, then deleting something and reallocating it as
- * data would allow the old block to be overwritten before the
- * transaction committed (because we force data to disk before commit).
- * This would lead to corruption if we crashed between overwriting the
- * data and committing the delete.
- *
- * @@@ We may want to make this allocation behaviour conditional on
- * data-writes at some point, and disable it for metadata allocations or
- * sync-data inodes.
- */
-static int ext3_test_allocatable(ext3_grpblk_t nr, struct buffer_head *bh)
-{
-	int ret;
-	struct journal_head *jh = bh2jh(bh);
-
-	if (ext3_test_bit(nr, bh->b_data))
-		return 0;
-
-	jbd_lock_bh_state(bh);
-	if (!jh->b_committed_data)
-		ret = 1;
-	else
-		ret = !ext3_test_bit(nr, jh->b_committed_data);
-	jbd_unlock_bh_state(bh);
-	return ret;
-}
-
-/**
- * bitmap_search_next_usable_block()
- * @start:		the starting block (group relative) of the search
- * @bh:			bufferhead contains the block group bitmap
- * @maxblocks:		the ending block (group relative) of the reservation
- *
- * The bitmap search --- search forward alternately through the actual
- * bitmap on disk and the last-committed copy in journal, until we find a
- * bit free in both bitmaps.
- */
-static ext3_grpblk_t
-bitmap_search_next_usable_block(ext3_grpblk_t start, struct buffer_head *bh,
-					ext3_grpblk_t maxblocks)
-{
-	ext3_grpblk_t next;
-	struct journal_head *jh = bh2jh(bh);
-
-	while (start < maxblocks) {
-		next = ext3_find_next_zero_bit(bh->b_data, maxblocks, start);
-		if (next >= maxblocks)
-			return -1;
-		if (ext3_test_allocatable(next, bh))
-			return next;
-		jbd_lock_bh_state(bh);
-		if (jh->b_committed_data)
-			start = ext3_find_next_zero_bit(jh->b_committed_data,
-							maxblocks, next);
-		jbd_unlock_bh_state(bh);
-	}
-	return -1;
-}
-
-/**
- * find_next_usable_block()
- * @start:		the starting block (group relative) to find next
- *			allocatable block in bitmap.
- * @bh:			bufferhead contains the block group bitmap
- * @maxblocks:		the ending block (group relative) for the search
- *
- * Find an allocatable block in a bitmap.  We honor both the bitmap and
- * its last-committed copy (if that exists), and perform the "most
- * appropriate allocation" algorithm of looking for a free block near
- * the initial goal; then for a free byte somewhere in the bitmap; then
- * for any free bit in the bitmap.
- */
-static ext3_grpblk_t
-find_next_usable_block(ext3_grpblk_t start, struct buffer_head *bh,
-			ext3_grpblk_t maxblocks)
-{
-	ext3_grpblk_t here, next;
-	char *p, *r;
-
-	if (start > 0) {
-		/*
-		 * The goal was occupied; search forward for a free
-		 * block within the next XX blocks.
-		 *
-		 * end_goal is more or less random, but it has to be
-		 * less than EXT3_BLOCKS_PER_GROUP. Aligning up to the
-		 * next 64-bit boundary is simple..
-		 */
-		ext3_grpblk_t end_goal = (start + 63) & ~63;
-		if (end_goal > maxblocks)
-			end_goal = maxblocks;
-		here = ext3_find_next_zero_bit(bh->b_data, end_goal, start);
-		if (here < end_goal && ext3_test_allocatable(here, bh))
-			return here;
-		ext3_debug("Bit not found near goal\n");
-	}
-
-	here = start;
-	if (here < 0)
-		here = 0;
-
-	p = bh->b_data + (here >> 3);
-	r = memscan(p, 0, ((maxblocks + 7) >> 3) - (here >> 3));
-	next = (r - bh->b_data) << 3;
-
-	if (next < maxblocks && next >= start && ext3_test_allocatable(next, bh))
-		return next;
-
-	/*
-	 * The bitmap search --- search forward alternately through the actual
-	 * bitmap and the last-committed copy until we find a bit free in
-	 * both
-	 */
-	here = bitmap_search_next_usable_block(here, bh, maxblocks);
-	return here;
-}
-
-/**
- * claim_block()
- * @lock:		the spin lock for this block group
- * @block:		the free block (group relative) to allocate
- * @bh:			the buffer_head contains the block group bitmap
- *
- * We think we can allocate this block in this bitmap.  Try to set the bit.
- * If that succeeds then check that nobody has allocated and then freed the
- * block since we saw that is was not marked in b_committed_data.  If it _was_
- * allocated and freed then clear the bit in the bitmap again and return
- * zero (failure).
- */
-static inline int
-claim_block(spinlock_t *lock, ext3_grpblk_t block, struct buffer_head *bh)
-{
-	struct journal_head *jh = bh2jh(bh);
-	int ret;
-
-	if (ext3_set_bit_atomic(lock, block, bh->b_data))
-		return 0;
-	jbd_lock_bh_state(bh);
-	if (jh->b_committed_data && ext3_test_bit(block,jh->b_committed_data)) {
-		ext3_clear_bit_atomic(lock, block, bh->b_data);
-		ret = 0;
-	} else {
-		ret = 1;
-	}
-	jbd_unlock_bh_state(bh);
-	return ret;
-}
-
-/**
- * ext3_try_to_allocate()
- * @sb:			superblock
- * @handle:		handle to this transaction
- * @group:		given allocation block group
- * @bitmap_bh:		bufferhead holds the block bitmap
- * @grp_goal:		given target block within the group
- * @count:		target number of blocks to allocate
- * @my_rsv:		reservation window
- *
- * Attempt to allocate blocks within a give range. Set the range of allocation
- * first, then find the first free bit(s) from the bitmap (within the range),
- * and at last, allocate the blocks by claiming the found free bit as allocated.
- *
- * To set the range of this allocation:
- *	if there is a reservation window, only try to allocate block(s) from the
- *	file's own reservation window;
- *	Otherwise, the allocation range starts from the give goal block, ends at
- *	the block group's last block.
- *
- * If we failed to allocate the desired block then we may end up crossing to a
- * new bitmap.  In that case we must release write access to the old one via
- * ext3_journal_release_buffer(), else we'll run out of credits.
- */
-static ext3_grpblk_t
-ext3_try_to_allocate(struct super_block *sb, handle_t *handle, int group,
-			struct buffer_head *bitmap_bh, ext3_grpblk_t grp_goal,
-			unsigned long *count, struct ext3_reserve_window *my_rsv)
-{
-	ext3_fsblk_t group_first_block;
-	ext3_grpblk_t start, end;
-	unsigned long num = 0;
-
-	/* we do allocation within the reservation window if we have a window */
-	if (my_rsv) {
-		group_first_block = ext3_group_first_block_no(sb, group);
-		if (my_rsv->_rsv_start >= group_first_block)
-			start = my_rsv->_rsv_start - group_first_block;
-		else
-			/* reservation window cross group boundary */
-			start = 0;
-		end = my_rsv->_rsv_end - group_first_block + 1;
-		if (end > EXT3_BLOCKS_PER_GROUP(sb))
-			/* reservation window crosses group boundary */
-			end = EXT3_BLOCKS_PER_GROUP(sb);
-		if ((start <= grp_goal) && (grp_goal < end))
-			start = grp_goal;
-		else
-			grp_goal = -1;
-	} else {
-		if (grp_goal > 0)
-			start = grp_goal;
-		else
-			start = 0;
-		end = EXT3_BLOCKS_PER_GROUP(sb);
-	}
-
-	BUG_ON(start > EXT3_BLOCKS_PER_GROUP(sb));
-
-repeat:
-	if (grp_goal < 0 || !ext3_test_allocatable(grp_goal, bitmap_bh)) {
-		grp_goal = find_next_usable_block(start, bitmap_bh, end);
-		if (grp_goal < 0)
-			goto fail_access;
-		if (!my_rsv) {
-			int i;
-
-			for (i = 0; i < 7 && grp_goal > start &&
-					ext3_test_allocatable(grp_goal - 1,
-								bitmap_bh);
-					i++, grp_goal--)
-				;
-		}
-	}
-	start = grp_goal;
-
-	if (!claim_block(sb_bgl_lock(EXT3_SB(sb), group),
-		grp_goal, bitmap_bh)) {
-		/*
-		 * The block was allocated by another thread, or it was
-		 * allocated and then freed by another thread
-		 */
-		start++;
-		grp_goal++;
-		if (start >= end)
-			goto fail_access;
-		goto repeat;
-	}
-	num++;
-	grp_goal++;
-	while (num < *count && grp_goal < end
-		&& ext3_test_allocatable(grp_goal, bitmap_bh)
-		&& claim_block(sb_bgl_lock(EXT3_SB(sb), group),
-				grp_goal, bitmap_bh)) {
-		num++;
-		grp_goal++;
-	}
-	*count = num;
-	return grp_goal - num;
-fail_access:
-	*count = num;
-	return -1;
-}
-
-/**
- *	find_next_reservable_window():
- *		find a reservable space within the given range.
- *		It does not allocate the reservation window for now:
- *		alloc_new_reservation() will do the work later.
- *
- *	@search_head: the head of the searching list;
- *		This is not necessarily the list head of the whole filesystem
- *
- *		We have both head and start_block to assist the search
- *		for the reservable space. The list starts from head,
- *		but we will shift to the place where start_block is,
- *		then start from there, when looking for a reservable space.
- *
- *	@my_rsv: the reservation window
- *
- *	@sb: the super block
- *
- *	@start_block: the first block we consider to start
- *			the real search from
- *
- *	@last_block:
- *		the maximum block number that our goal reservable space
- *		could start from. This is normally the last block in this
- *		group. The search will end when we found the start of next
- *		possible reservable space is out of this boundary.
- *		This could handle the cross boundary reservation window
- *		request.
- *
- *	basically we search from the given range, rather than the whole
- *	reservation double linked list, (start_block, last_block)
- *	to find a free region that is of my size and has not
- *	been reserved.
- *
- */
-static int find_next_reservable_window(
-				struct ext3_reserve_window_node *search_head,
-				struct ext3_reserve_window_node *my_rsv,
-				struct super_block * sb,
-				ext3_fsblk_t start_block,
-				ext3_fsblk_t last_block)
-{
-	struct rb_node *next;
-	struct ext3_reserve_window_node *rsv, *prev;
-	ext3_fsblk_t cur;
-	int size = my_rsv->rsv_goal_size;
-
-	/* TODO: make the start of the reservation window byte-aligned */
-	/* cur = *start_block & ~7;*/
-	cur = start_block;
-	rsv = search_head;
-	if (!rsv)
-		return -1;
-
-	while (1) {
-		if (cur <= rsv->rsv_end)
-			cur = rsv->rsv_end + 1;
-
-		/* TODO?
-		 * in the case we could not find a reservable space
-		 * that is what is expected, during the re-search, we could
-		 * remember what's the largest reservable space we could have
-		 * and return that one.
-		 *
-		 * For now it will fail if we could not find the reservable
-		 * space with expected-size (or more)...
-		 */
-		if (cur > last_block)
-			return -1;		/* fail */
-
-		prev = rsv;
-		next = rb_next(&rsv->rsv_node);
-		rsv = rb_entry(next,struct ext3_reserve_window_node,rsv_node);
-
-		/*
-		 * Reached the last reservation, we can just append to the
-		 * previous one.
-		 */
-		if (!next)
-			break;
-
-		if (cur + size <= rsv->rsv_start) {
-			/*
-			 * Found a reserveable space big enough.  We could
-			 * have a reservation across the group boundary here
-			 */
-			break;
-		}
-	}
-	/*
-	 * we come here either :
-	 * when we reach the end of the whole list,
-	 * and there is empty reservable space after last entry in the list.
-	 * append it to the end of the list.
-	 *
-	 * or we found one reservable space in the middle of the list,
-	 * return the reservation window that we could append to.
-	 * succeed.
-	 */
-
-	if ((prev != my_rsv) && (!rsv_is_empty(&my_rsv->rsv_window)))
-		rsv_window_remove(sb, my_rsv);
-
-	/*
-	 * Let's book the whole available window for now.  We will check the
-	 * disk bitmap later and then, if there are free blocks then we adjust
-	 * the window size if it's larger than requested.
-	 * Otherwise, we will remove this node from the tree next time
-	 * call find_next_reservable_window.
-	 */
-	my_rsv->rsv_start = cur;
-	my_rsv->rsv_end = cur + size - 1;
-	my_rsv->rsv_alloc_hit = 0;
-
-	if (prev != my_rsv)
-		ext3_rsv_window_add(sb, my_rsv);
-
-	return 0;
-}
-
-/**
- *	alloc_new_reservation()--allocate a new reservation window
- *
- *		To make a new reservation, we search part of the filesystem
- *		reservation list (the list that inside the group). We try to
- *		allocate a new reservation window near the allocation goal,
- *		or the beginning of the group, if there is no goal.
- *
- *		We first find a reservable space after the goal, then from
- *		there, we check the bitmap for the first free block after
- *		it. If there is no free block until the end of group, then the
- *		whole group is full, we failed. Otherwise, check if the free
- *		block is inside the expected reservable space, if so, we
- *		succeed.
- *		If the first free block is outside the reservable space, then
- *		start from the first free block, we search for next available
- *		space, and go on.
- *
- *	on succeed, a new reservation will be found and inserted into the list
- *	It contains at least one free block, and it does not overlap with other
- *	reservation windows.
- *
- *	failed: we failed to find a reservation window in this group
- *
- *	@my_rsv: the reservation window
- *
- *	@grp_goal: The goal (group-relative).  It is where the search for a
- *		free reservable space should start from.
- *		if we have a grp_goal(grp_goal >0 ), then start from there,
- *		no grp_goal(grp_goal = -1), we start from the first block
- *		of the group.
- *
- *	@sb: the super block
- *	@group: the group we are trying to allocate in
- *	@bitmap_bh: the block group block bitmap
- *
- */
-static int alloc_new_reservation(struct ext3_reserve_window_node *my_rsv,
-		ext3_grpblk_t grp_goal, struct super_block *sb,
-		unsigned int group, struct buffer_head *bitmap_bh)
-{
-	struct ext3_reserve_window_node *search_head;
-	ext3_fsblk_t group_first_block, group_end_block, start_block;
-	ext3_grpblk_t first_free_block;
-	struct rb_root *fs_rsv_root = &EXT3_SB(sb)->s_rsv_window_root;
-	unsigned long size;
-	int ret;
-	spinlock_t *rsv_lock = &EXT3_SB(sb)->s_rsv_window_lock;
-
-	group_first_block = ext3_group_first_block_no(sb, group);
-	group_end_block = group_first_block + (EXT3_BLOCKS_PER_GROUP(sb) - 1);
-
-	if (grp_goal < 0)
-		start_block = group_first_block;
-	else
-		start_block = grp_goal + group_first_block;
-
-	trace_ext3_alloc_new_reservation(sb, start_block);
-	size = my_rsv->rsv_goal_size;
-
-	if (!rsv_is_empty(&my_rsv->rsv_window)) {
-		/*
-		 * if the old reservation is cross group boundary
-		 * and if the goal is inside the old reservation window,
-		 * we will come here when we just failed to allocate from
-		 * the first part of the window. We still have another part
-		 * that belongs to the next group. In this case, there is no
-		 * point to discard our window and try to allocate a new one
-		 * in this group(which will fail). we should
-		 * keep the reservation window, just simply move on.
-		 *
-		 * Maybe we could shift the start block of the reservation
-		 * window to the first block of next group.
-		 */
-
-		if ((my_rsv->rsv_start <= group_end_block) &&
-				(my_rsv->rsv_end > group_end_block) &&
-				(start_block >= my_rsv->rsv_start))
-			return -1;
-
-		if ((my_rsv->rsv_alloc_hit >
-		     (my_rsv->rsv_end - my_rsv->rsv_start + 1) / 2)) {
-			/*
-			 * if the previously allocation hit ratio is
-			 * greater than 1/2, then we double the size of
-			 * the reservation window the next time,
-			 * otherwise we keep the same size window
-			 */
-			size = size * 2;
-			if (size > EXT3_MAX_RESERVE_BLOCKS)
-				size = EXT3_MAX_RESERVE_BLOCKS;
-			my_rsv->rsv_goal_size= size;
-		}
-	}
-
-	spin_lock(rsv_lock);
-	/*
-	 * shift the search start to the window near the goal block
-	 */
-	search_head = search_reserve_window(fs_rsv_root, start_block);
-
-	/*
-	 * find_next_reservable_window() simply finds a reservable window
-	 * inside the given range(start_block, group_end_block).
-	 *
-	 * To make sure the reservation window has a free bit inside it, we
-	 * need to check the bitmap after we found a reservable window.
-	 */
-retry:
-	ret = find_next_reservable_window(search_head, my_rsv, sb,
-						start_block, group_end_block);
-
-	if (ret == -1) {
-		if (!rsv_is_empty(&my_rsv->rsv_window))
-			rsv_window_remove(sb, my_rsv);
-		spin_unlock(rsv_lock);
-		return -1;
-	}
-
-	/*
-	 * On success, find_next_reservable_window() returns the
-	 * reservation window where there is a reservable space after it.
-	 * Before we reserve this reservable space, we need
-	 * to make sure there is at least a free block inside this region.
-	 *
-	 * searching the first free bit on the block bitmap and copy of
-	 * last committed bitmap alternatively, until we found a allocatable
-	 * block. Search start from the start block of the reservable space
-	 * we just found.
-	 */
-	spin_unlock(rsv_lock);
-	first_free_block = bitmap_search_next_usable_block(
-			my_rsv->rsv_start - group_first_block,
-			bitmap_bh, group_end_block - group_first_block + 1);
-
-	if (first_free_block < 0) {
-		/*
-		 * no free block left on the bitmap, no point
-		 * to reserve the space. return failed.
-		 */
-		spin_lock(rsv_lock);
-		if (!rsv_is_empty(&my_rsv->rsv_window))
-			rsv_window_remove(sb, my_rsv);
-		spin_unlock(rsv_lock);
-		return -1;		/* failed */
-	}
-
-	start_block = first_free_block + group_first_block;
-	/*
-	 * check if the first free block is within the
-	 * free space we just reserved
-	 */
-	if (start_block >= my_rsv->rsv_start &&
-	    start_block <= my_rsv->rsv_end) {
-		trace_ext3_reserved(sb, start_block, my_rsv);
-		return 0;		/* success */
-	}
-	/*
-	 * if the first free bit we found is out of the reservable space
-	 * continue search for next reservable space,
-	 * start from where the free block is,
-	 * we also shift the list head to where we stopped last time
-	 */
-	search_head = my_rsv;
-	spin_lock(rsv_lock);
-	goto retry;
-}
-
-/**
- * try_to_extend_reservation()
- * @my_rsv:		given reservation window
- * @sb:			super block
- * @size:		the delta to extend
- *
- * Attempt to expand the reservation window large enough to have
- * required number of free blocks
- *
- * Since ext3_try_to_allocate() will always allocate blocks within
- * the reservation window range, if the window size is too small,
- * multiple blocks allocation has to stop at the end of the reservation
- * window. To make this more efficient, given the total number of
- * blocks needed and the current size of the window, we try to
- * expand the reservation window size if necessary on a best-effort
- * basis before ext3_new_blocks() tries to allocate blocks,
- */
-static void try_to_extend_reservation(struct ext3_reserve_window_node *my_rsv,
-			struct super_block *sb, int size)
-{
-	struct ext3_reserve_window_node *next_rsv;
-	struct rb_node *next;
-	spinlock_t *rsv_lock = &EXT3_SB(sb)->s_rsv_window_lock;
-
-	if (!spin_trylock(rsv_lock))
-		return;
-
-	next = rb_next(&my_rsv->rsv_node);
-
-	if (!next)
-		my_rsv->rsv_end += size;
-	else {
-		next_rsv = rb_entry(next, struct ext3_reserve_window_node, rsv_node);
-
-		if ((next_rsv->rsv_start - my_rsv->rsv_end - 1) >= size)
-			my_rsv->rsv_end += size;
-		else
-			my_rsv->rsv_end = next_rsv->rsv_start - 1;
-	}
-	spin_unlock(rsv_lock);
-}
-
-/**
- * ext3_try_to_allocate_with_rsv()
- * @sb:			superblock
- * @handle:		handle to this transaction
- * @group:		given allocation block group
- * @bitmap_bh:		bufferhead holds the block bitmap
- * @grp_goal:		given target block within the group
- * @my_rsv:		reservation window
- * @count:		target number of blocks to allocate
- * @errp:		pointer to store the error code
- *
- * This is the main function used to allocate a new block and its reservation
- * window.
- *
- * Each time when a new block allocation is need, first try to allocate from
- * its own reservation.  If it does not have a reservation window, instead of
- * looking for a free bit on bitmap first, then look up the reservation list to
- * see if it is inside somebody else's reservation window, we try to allocate a
- * reservation window for it starting from the goal first. Then do the block
- * allocation within the reservation window.
- *
- * This will avoid keeping on searching the reservation list again and
- * again when somebody is looking for a free block (without
- * reservation), and there are lots of free blocks, but they are all
- * being reserved.
- *
- * We use a red-black tree for the per-filesystem reservation list.
- *
- */
-static ext3_grpblk_t
-ext3_try_to_allocate_with_rsv(struct super_block *sb, handle_t *handle,
-			unsigned int group, struct buffer_head *bitmap_bh,
-			ext3_grpblk_t grp_goal,
-			struct ext3_reserve_window_node * my_rsv,
-			unsigned long *count, int *errp)
-{
-	ext3_fsblk_t group_first_block, group_last_block;
-	ext3_grpblk_t ret = 0;
-	int fatal;
-	unsigned long num = *count;
-
-	*errp = 0;
-
-	/*
-	 * Make sure we use undo access for the bitmap, because it is critical
-	 * that we do the frozen_data COW on bitmap buffers in all cases even
-	 * if the buffer is in BJ_Forget state in the committing transaction.
-	 */
-	BUFFER_TRACE(bitmap_bh, "get undo access for new block");
-	fatal = ext3_journal_get_undo_access(handle, bitmap_bh);
-	if (fatal) {
-		*errp = fatal;
-		return -1;
-	}
-
-	/*
-	 * we don't deal with reservation when
-	 * filesystem is mounted without reservation
-	 * or the file is not a regular file
-	 * or last attempt to allocate a block with reservation turned on failed
-	 */
-	if (my_rsv == NULL ) {
-		ret = ext3_try_to_allocate(sb, handle, group, bitmap_bh,
-						grp_goal, count, NULL);
-		goto out;
-	}
-	/*
-	 * grp_goal is a group relative block number (if there is a goal)
-	 * 0 <= grp_goal < EXT3_BLOCKS_PER_GROUP(sb)
-	 * first block is a filesystem wide block number
-	 * first block is the block number of the first block in this group
-	 */
-	group_first_block = ext3_group_first_block_no(sb, group);
-	group_last_block = group_first_block + (EXT3_BLOCKS_PER_GROUP(sb) - 1);
-
-	/*
-	 * Basically we will allocate a new block from inode's reservation
-	 * window.
-	 *
-	 * We need to allocate a new reservation window, if:
-	 * a) inode does not have a reservation window; or
-	 * b) last attempt to allocate a block from existing reservation
-	 *    failed; or
-	 * c) we come here with a goal and with a reservation window
-	 *
-	 * We do not need to allocate a new reservation window if we come here
-	 * at the beginning with a goal and the goal is inside the window, or
-	 * we don't have a goal but already have a reservation window.
-	 * then we could go to allocate from the reservation window directly.
-	 */
-	while (1) {
-		if (rsv_is_empty(&my_rsv->rsv_window) || (ret < 0) ||
-			!goal_in_my_reservation(&my_rsv->rsv_window,
-						grp_goal, group, sb)) {
-			if (my_rsv->rsv_goal_size < *count)
-				my_rsv->rsv_goal_size = *count;
-			ret = alloc_new_reservation(my_rsv, grp_goal, sb,
-							group, bitmap_bh);
-			if (ret < 0)
-				break;			/* failed */
-
-			if (!goal_in_my_reservation(&my_rsv->rsv_window,
-							grp_goal, group, sb))
-				grp_goal = -1;
-		} else if (grp_goal >= 0) {
-			int curr = my_rsv->rsv_end -
-					(grp_goal + group_first_block) + 1;
-
-			if (curr < *count)
-				try_to_extend_reservation(my_rsv, sb,
-							*count - curr);
-		}
-
-		if ((my_rsv->rsv_start > group_last_block) ||
-				(my_rsv->rsv_end < group_first_block)) {
-			rsv_window_dump(&EXT3_SB(sb)->s_rsv_window_root, 1);
-			BUG();
-		}
-		ret = ext3_try_to_allocate(sb, handle, group, bitmap_bh,
-					   grp_goal, &num, &my_rsv->rsv_window);
-		if (ret >= 0) {
-			my_rsv->rsv_alloc_hit += num;
-			*count = num;
-			break;				/* succeed */
-		}
-		num = *count;
-	}
-out:
-	if (ret >= 0) {
-		BUFFER_TRACE(bitmap_bh, "journal_dirty_metadata for "
-					"bitmap block");
-		fatal = ext3_journal_dirty_metadata(handle, bitmap_bh);
-		if (fatal) {
-			*errp = fatal;
-			return -1;
-		}
-		return ret;
-	}
-
-	BUFFER_TRACE(bitmap_bh, "journal_release_buffer");
-	ext3_journal_release_buffer(handle, bitmap_bh);
-	return ret;
-}
-
-/**
- * ext3_has_free_blocks()
- * @sbi:		in-core super block structure.
- *
- * Check if filesystem has at least 1 free block available for allocation.
- */
-static int ext3_has_free_blocks(struct ext3_sb_info *sbi, int use_reservation)
-{
-	ext3_fsblk_t free_blocks, root_blocks;
-
-	free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
-	root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
-	if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
-		!use_reservation && !uid_eq(sbi->s_resuid, current_fsuid()) &&
-		(gid_eq(sbi->s_resgid, GLOBAL_ROOT_GID) ||
-		 !in_group_p (sbi->s_resgid))) {
-		return 0;
-	}
-	return 1;
-}
-
-/**
- * ext3_should_retry_alloc()
- * @sb:			super block
- * @retries		number of attemps has been made
- *
- * ext3_should_retry_alloc() is called when ENOSPC is returned, and if
- * it is profitable to retry the operation, this function will wait
- * for the current or committing transaction to complete, and then
- * return TRUE.
- *
- * if the total number of retries exceed three times, return FALSE.
- */
-int ext3_should_retry_alloc(struct super_block *sb, int *retries)
-{
-	if (!ext3_has_free_blocks(EXT3_SB(sb), 0) || (*retries)++ > 3)
-		return 0;
-
-	jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
-
-	return journal_force_commit_nested(EXT3_SB(sb)->s_journal);
-}
-
-/**
- * ext3_new_blocks() -- core block(s) allocation function
- * @handle:		handle to this transaction
- * @inode:		file inode
- * @goal:		given target block(filesystem wide)
- * @count:		target number of blocks to allocate
- * @errp:		error code
- *
- * ext3_new_blocks uses a goal block to assist allocation.  It tries to
- * allocate block(s) from the block group contains the goal block first. If that
- * fails, it will try to allocate block(s) from other block groups without
- * any specific goal block.
- *
- */
-ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode,
-			ext3_fsblk_t goal, unsigned long *count, int *errp)
-{
-	struct buffer_head *bitmap_bh = NULL;
-	struct buffer_head *gdp_bh;
-	int group_no;
-	int goal_group;
-	ext3_grpblk_t grp_target_blk;	/* blockgroup relative goal block */
-	ext3_grpblk_t grp_alloc_blk;	/* blockgroup-relative allocated block*/
-	ext3_fsblk_t ret_block;		/* filesyetem-wide allocated block */
-	int bgi;			/* blockgroup iteration index */
-	int fatal = 0, err;
-	int performed_allocation = 0;
-	ext3_grpblk_t free_blocks;	/* number of free blocks in a group */
-	struct super_block *sb;
-	struct ext3_group_desc *gdp;
-	struct ext3_super_block *es;
-	struct ext3_sb_info *sbi;
-	struct ext3_reserve_window_node *my_rsv = NULL;
-	struct ext3_block_alloc_info *block_i;
-	unsigned short windowsz = 0;
-#ifdef EXT3FS_DEBUG
-	static int goal_hits, goal_attempts;
-#endif
-	unsigned long ngroups;
-	unsigned long num = *count;
-
-	*errp = -ENOSPC;
-	sb = inode->i_sb;
-
-	/*
-	 * Check quota for allocation of this block.
-	 */
-	err = dquot_alloc_block(inode, num);
-	if (err) {
-		*errp = err;
-		return 0;
-	}
-
-	trace_ext3_request_blocks(inode, goal, num);
-
-	sbi = EXT3_SB(sb);
-	es = sbi->s_es;
-	ext3_debug("goal=%lu.\n", goal);
-	/*
-	 * Allocate a block from reservation only when
-	 * filesystem is mounted with reservation(default,-o reservation), and
-	 * it's a regular file, and
-	 * the desired window size is greater than 0 (One could use ioctl
-	 * command EXT3_IOC_SETRSVSZ to set the window size to 0 to turn off
-	 * reservation on that particular file)
-	 */
-	block_i = EXT3_I(inode)->i_block_alloc_info;
-	if (block_i && ((windowsz = block_i->rsv_window_node.rsv_goal_size) > 0))
-		my_rsv = &block_i->rsv_window_node;
-
-	if (!ext3_has_free_blocks(sbi, IS_NOQUOTA(inode))) {
-		*errp = -ENOSPC;
-		goto out;
-	}
-
-	/*
-	 * First, test whether the goal block is free.
-	 */
-	if (goal < le32_to_cpu(es->s_first_data_block) ||
-	    goal >= le32_to_cpu(es->s_blocks_count))
-		goal = le32_to_cpu(es->s_first_data_block);
-	group_no = (goal - le32_to_cpu(es->s_first_data_block)) /
-			EXT3_BLOCKS_PER_GROUP(sb);
-	goal_group = group_no;
-retry_alloc:
-	gdp = ext3_get_group_desc(sb, group_no, &gdp_bh);
-	if (!gdp)
-		goto io_error;
-
-	free_blocks = le16_to_cpu(gdp->bg_free_blocks_count);
-	/*
-	 * if there is not enough free blocks to make a new resevation
-	 * turn off reservation for this allocation
-	 */
-	if (my_rsv && (free_blocks < windowsz)
-		&& (free_blocks > 0)
-		&& (rsv_is_empty(&my_rsv->rsv_window)))
-		my_rsv = NULL;
-
-	if (free_blocks > 0) {
-		grp_target_blk = ((goal - le32_to_cpu(es->s_first_data_block)) %
-				EXT3_BLOCKS_PER_GROUP(sb));
-		bitmap_bh = read_block_bitmap(sb, group_no);
-		if (!bitmap_bh)
-			goto io_error;
-		grp_alloc_blk = ext3_try_to_allocate_with_rsv(sb, handle,
-					group_no, bitmap_bh, grp_target_blk,
-					my_rsv,	&num, &fatal);
-		if (fatal)
-			goto out;
-		if (grp_alloc_blk >= 0)
-			goto allocated;
-	}
-
-	ngroups = EXT3_SB(sb)->s_groups_count;
-	smp_rmb();
-
-	/*
-	 * Now search the rest of the groups.  We assume that
-	 * group_no and gdp correctly point to the last group visited.
-	 */
-	for (bgi = 0; bgi < ngroups; bgi++) {
-		group_no++;
-		if (group_no >= ngroups)
-			group_no = 0;
-		gdp = ext3_get_group_desc(sb, group_no, &gdp_bh);
-		if (!gdp)
-			goto io_error;
-		free_blocks = le16_to_cpu(gdp->bg_free_blocks_count);
-		/*
-		 * skip this group (and avoid loading bitmap) if there
-		 * are no free blocks
-		 */
-		if (!free_blocks)
-			continue;
-		/*
-		 * skip this group if the number of
-		 * free blocks is less than half of the reservation
-		 * window size.
-		 */
-		if (my_rsv && (free_blocks <= (windowsz/2)))
-			continue;
-
-		brelse(bitmap_bh);
-		bitmap_bh = read_block_bitmap(sb, group_no);
-		if (!bitmap_bh)
-			goto io_error;
-		/*
-		 * try to allocate block(s) from this group, without a goal(-1).
-		 */
-		grp_alloc_blk = ext3_try_to_allocate_with_rsv(sb, handle,
-					group_no, bitmap_bh, -1, my_rsv,
-					&num, &fatal);
-		if (fatal)
-			goto out;
-		if (grp_alloc_blk >= 0)
-			goto allocated;
-	}
-	/*
-	 * We may end up a bogus earlier ENOSPC error due to
-	 * filesystem is "full" of reservations, but
-	 * there maybe indeed free blocks available on disk
-	 * In this case, we just forget about the reservations
-	 * just do block allocation as without reservations.
-	 */
-	if (my_rsv) {
-		my_rsv = NULL;
-		windowsz = 0;
-		group_no = goal_group;
-		goto retry_alloc;
-	}
-	/* No space left on the device */
-	*errp = -ENOSPC;
-	goto out;
-
-allocated:
-
-	ext3_debug("using block group %d(%d)\n",
-			group_no, gdp->bg_free_blocks_count);
-
-	BUFFER_TRACE(gdp_bh, "get_write_access");
-	fatal = ext3_journal_get_write_access(handle, gdp_bh);
-	if (fatal)
-		goto out;
-
-	ret_block = grp_alloc_blk + ext3_group_first_block_no(sb, group_no);
-
-	if (in_range(le32_to_cpu(gdp->bg_block_bitmap), ret_block, num) ||
-	    in_range(le32_to_cpu(gdp->bg_inode_bitmap), ret_block, num) ||
-	    in_range(ret_block, le32_to_cpu(gdp->bg_inode_table),
-		      EXT3_SB(sb)->s_itb_per_group) ||
-	    in_range(ret_block + num - 1, le32_to_cpu(gdp->bg_inode_table),
-		      EXT3_SB(sb)->s_itb_per_group)) {
-		ext3_error(sb, "ext3_new_block",
-			    "Allocating block in system zone - "
-			    "blocks from "E3FSBLK", length %lu",
-			     ret_block, num);
-		/*
-		 * claim_block() marked the blocks we allocated as in use. So we
-		 * may want to selectively mark some of the blocks as free.
-		 */
-		goto retry_alloc;
-	}
-
-	performed_allocation = 1;
-
-#ifdef CONFIG_JBD_DEBUG
-	{
-		struct buffer_head *debug_bh;
-
-		/* Record bitmap buffer state in the newly allocated block */
-		debug_bh = sb_find_get_block(sb, ret_block);
-		if (debug_bh) {
-			BUFFER_TRACE(debug_bh, "state when allocated");
-			BUFFER_TRACE2(debug_bh, bitmap_bh, "bitmap state");
-			brelse(debug_bh);
-		}
-	}
-	jbd_lock_bh_state(bitmap_bh);
-	spin_lock(sb_bgl_lock(sbi, group_no));
-	if (buffer_jbd(bitmap_bh) && bh2jh(bitmap_bh)->b_committed_data) {
-		int i;
-
-		for (i = 0; i < num; i++) {
-			if (ext3_test_bit(grp_alloc_blk+i,
-					bh2jh(bitmap_bh)->b_committed_data)) {
-				printk("%s: block was unexpectedly set in "
-					"b_committed_data\n", __func__);
-			}
-		}
-	}
-	ext3_debug("found bit %d\n", grp_alloc_blk);
-	spin_unlock(sb_bgl_lock(sbi, group_no));
-	jbd_unlock_bh_state(bitmap_bh);
-#endif
-
-	if (ret_block + num - 1 >= le32_to_cpu(es->s_blocks_count)) {
-		ext3_error(sb, "ext3_new_block",
-			    "block("E3FSBLK") >= blocks count(%d) - "
-			    "block_group = %d, es == %p ", ret_block,
-			le32_to_cpu(es->s_blocks_count), group_no, es);
-		goto out;
-	}
-
-	/*
-	 * It is up to the caller to add the new buffer to a journal
-	 * list of some description.  We don't know in advance whether
-	 * the caller wants to use it as metadata or data.
-	 */
-	ext3_debug("allocating block %lu. Goal hits %d of %d.\n",
-			ret_block, goal_hits, goal_attempts);
-
-	spin_lock(sb_bgl_lock(sbi, group_no));
-	le16_add_cpu(&gdp->bg_free_blocks_count, -num);
-	spin_unlock(sb_bgl_lock(sbi, group_no));
-	percpu_counter_sub(&sbi->s_freeblocks_counter, num);
-
-	BUFFER_TRACE(gdp_bh, "journal_dirty_metadata for group descriptor");
-	fatal = ext3_journal_dirty_metadata(handle, gdp_bh);
-	if (fatal)
-		goto out;
-
-	*errp = 0;
-	brelse(bitmap_bh);
-
-	if (num < *count) {
-		dquot_free_block(inode, *count-num);
-		*count = num;
-	}
-
-	trace_ext3_allocate_blocks(inode, goal, num,
-				   (unsigned long long)ret_block);
-
-	return ret_block;
-
-io_error:
-	*errp = -EIO;
-out:
-	if (fatal) {
-		*errp = fatal;
-		ext3_std_error(sb, fatal);
-	}
-	/*
-	 * Undo the block allocation
-	 */
-	if (!performed_allocation)
-		dquot_free_block(inode, *count);
-	brelse(bitmap_bh);
-	return 0;
-}
-
-ext3_fsblk_t ext3_new_block(handle_t *handle, struct inode *inode,
-			ext3_fsblk_t goal, int *errp)
-{
-	unsigned long count = 1;
-
-	return ext3_new_blocks(handle, inode, goal, &count, errp);
-}
-
-/**
- * ext3_count_free_blocks() -- count filesystem free blocks
- * @sb:		superblock
- *
- * Adds up the number of free blocks from each block group.
- */
-ext3_fsblk_t ext3_count_free_blocks(struct super_block *sb)
-{
-	ext3_fsblk_t desc_count;
-	struct ext3_group_desc *gdp;
-	int i;
-	unsigned long ngroups = EXT3_SB(sb)->s_groups_count;
-#ifdef EXT3FS_DEBUG
-	struct ext3_super_block *es;
-	ext3_fsblk_t bitmap_count;
-	unsigned long x;
-	struct buffer_head *bitmap_bh = NULL;
-
-	es = EXT3_SB(sb)->s_es;
-	desc_count = 0;
-	bitmap_count = 0;
-	gdp = NULL;
-
-	smp_rmb();
-	for (i = 0; i < ngroups; i++) {
-		gdp = ext3_get_group_desc(sb, i, NULL);
-		if (!gdp)
-			continue;
-		desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
-		brelse(bitmap_bh);
-		bitmap_bh = read_block_bitmap(sb, i);
-		if (bitmap_bh == NULL)
-			continue;
-
-		x = ext3_count_free(bitmap_bh, sb->s_blocksize);
-		printk("group %d: stored = %d, counted = %lu\n",
-			i, le16_to_cpu(gdp->bg_free_blocks_count), x);
-		bitmap_count += x;
-	}
-	brelse(bitmap_bh);
-	printk("ext3_count_free_blocks: stored = "E3FSBLK
-		", computed = "E3FSBLK", "E3FSBLK"\n",
-	       (ext3_fsblk_t)le32_to_cpu(es->s_free_blocks_count),
-		desc_count, bitmap_count);
-	return bitmap_count;
-#else
-	desc_count = 0;
-	smp_rmb();
-	for (i = 0; i < ngroups; i++) {
-		gdp = ext3_get_group_desc(sb, i, NULL);
-		if (!gdp)
-			continue;
-		desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
-	}
-
-	return desc_count;
-#endif
-}
-
-static inline int test_root(int a, int b)
-{
-	int num = b;
-
-	while (a > num)
-		num *= b;
-	return num == a;
-}
-
-static int ext3_group_sparse(int group)
-{
-	if (group <= 1)
-		return 1;
-	if (!(group & 1))
-		return 0;
-	return (test_root(group, 7) || test_root(group, 5) ||
-		test_root(group, 3));
-}
-
-/**
- *	ext3_bg_has_super - number of blocks used by the superblock in group
- *	@sb: superblock for filesystem
- *	@group: group number to check
- *
- *	Return the number of blocks used by the superblock (primary or backup)
- *	in this group.  Currently this will be only 0 or 1.
- */
-int ext3_bg_has_super(struct super_block *sb, int group)
-{
-	if (EXT3_HAS_RO_COMPAT_FEATURE(sb,
-				EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER) &&
-			!ext3_group_sparse(group))
-		return 0;
-	return 1;
-}
-
-static unsigned long ext3_bg_num_gdb_meta(struct super_block *sb, int group)
-{
-	unsigned long metagroup = group / EXT3_DESC_PER_BLOCK(sb);
-	unsigned long first = metagroup * EXT3_DESC_PER_BLOCK(sb);
-	unsigned long last = first + EXT3_DESC_PER_BLOCK(sb) - 1;
-
-	if (group == first || group == first + 1 || group == last)
-		return 1;
-	return 0;
-}
-
-static unsigned long ext3_bg_num_gdb_nometa(struct super_block *sb, int group)
-{
-	return ext3_bg_has_super(sb, group) ? EXT3_SB(sb)->s_gdb_count : 0;
-}
-
-/**
- *	ext3_bg_num_gdb - number of blocks used by the group table in group
- *	@sb: superblock for filesystem
- *	@group: group number to check
- *
- *	Return the number of blocks used by the group descriptor table
- *	(primary or backup) in this group.  In the future there may be a
- *	different number of descriptor blocks in each group.
- */
-unsigned long ext3_bg_num_gdb(struct super_block *sb, int group)
-{
-	unsigned long first_meta_bg =
-			le32_to_cpu(EXT3_SB(sb)->s_es->s_first_meta_bg);
-	unsigned long metagroup = group / EXT3_DESC_PER_BLOCK(sb);
-
-	if (!EXT3_HAS_INCOMPAT_FEATURE(sb,EXT3_FEATURE_INCOMPAT_META_BG) ||
-			metagroup < first_meta_bg)
-		return ext3_bg_num_gdb_nometa(sb,group);
-
-	return ext3_bg_num_gdb_meta(sb,group);
-
-}
-
-/**
- * ext3_trim_all_free -- function to trim all free space in alloc. group
- * @sb:			super block for file system
- * @group:		allocation group to trim
- * @start:		first group block to examine
- * @max:		last group block to examine
- * @gdp:		allocation group description structure
- * @minblocks:		minimum extent block count
- *
- * ext3_trim_all_free walks through group's block bitmap searching for free
- * blocks. When the free block is found, it tries to allocate this block and
- * consequent free block to get the biggest free extent possible, until it
- * reaches any used block. Then issue a TRIM command on this extent and free
- * the extent in the block bitmap. This is done until whole group is scanned.
- */
-static ext3_grpblk_t ext3_trim_all_free(struct super_block *sb,
-					unsigned int group,
-					ext3_grpblk_t start, ext3_grpblk_t max,
-					ext3_grpblk_t minblocks)
-{
-	handle_t *handle;
-	ext3_grpblk_t next, free_blocks, bit, freed, count = 0;
-	ext3_fsblk_t discard_block;
-	struct ext3_sb_info *sbi;
-	struct buffer_head *gdp_bh, *bitmap_bh = NULL;
-	struct ext3_group_desc *gdp;
-	int err = 0, ret = 0;
-
-	/*
-	 * We will update one block bitmap, and one group descriptor
-	 */
-	handle = ext3_journal_start_sb(sb, 2);
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	bitmap_bh = read_block_bitmap(sb, group);
-	if (!bitmap_bh) {
-		err = -EIO;
-		goto err_out;
-	}
-
-	BUFFER_TRACE(bitmap_bh, "getting undo access");
-	err = ext3_journal_get_undo_access(handle, bitmap_bh);
-	if (err)
-		goto err_out;
-
-	gdp = ext3_get_group_desc(sb, group, &gdp_bh);
-	if (!gdp) {
-		err = -EIO;
-		goto err_out;
-	}
-
-	BUFFER_TRACE(gdp_bh, "get_write_access");
-	err = ext3_journal_get_write_access(handle, gdp_bh);
-	if (err)
-		goto err_out;
-
-	free_blocks = le16_to_cpu(gdp->bg_free_blocks_count);
-	sbi = EXT3_SB(sb);
-
-	 /* Walk through the whole group */
-	while (start <= max) {
-		start = bitmap_search_next_usable_block(start, bitmap_bh, max);
-		if (start < 0)
-			break;
-		next = start;
-
-		/*
-		 * Allocate contiguous free extents by setting bits in the
-		 * block bitmap
-		 */
-		while (next <= max
-			&& claim_block(sb_bgl_lock(sbi, group),
-					next, bitmap_bh)) {
-			next++;
-		}
-
-		 /* We did not claim any blocks */
-		if (next == start)
-			continue;
-
-		discard_block = (ext3_fsblk_t)start +
-				ext3_group_first_block_no(sb, group);
-
-		/* Update counters */
-		spin_lock(sb_bgl_lock(sbi, group));
-		le16_add_cpu(&gdp->bg_free_blocks_count, start - next);
-		spin_unlock(sb_bgl_lock(sbi, group));
-		percpu_counter_sub(&sbi->s_freeblocks_counter, next - start);
-
-		free_blocks -= next - start;
-		/* Do not issue a TRIM on extents smaller than minblocks */
-		if ((next - start) < minblocks)
-			goto free_extent;
-
-		trace_ext3_discard_blocks(sb, discard_block, next - start);
-		 /* Send the TRIM command down to the device */
-		err = sb_issue_discard(sb, discard_block, next - start,
-				       GFP_NOFS, 0);
-		count += (next - start);
-free_extent:
-		freed = 0;
-
-		/*
-		 * Clear bits in the bitmap
-		 */
-		for (bit = start; bit < next; bit++) {
-			BUFFER_TRACE(bitmap_bh, "clear bit");
-			if (!ext3_clear_bit_atomic(sb_bgl_lock(sbi, group),
-						bit, bitmap_bh->b_data)) {
-				ext3_error(sb, __func__,
-					"bit already cleared for block "E3FSBLK,
-					 (unsigned long)bit);
-				BUFFER_TRACE(bitmap_bh, "bit already cleared");
-			} else {
-				freed++;
-			}
-		}
-
-		/* Update couters */
-		spin_lock(sb_bgl_lock(sbi, group));
-		le16_add_cpu(&gdp->bg_free_blocks_count, freed);
-		spin_unlock(sb_bgl_lock(sbi, group));
-		percpu_counter_add(&sbi->s_freeblocks_counter, freed);
-
-		start = next;
-		if (err < 0) {
-			if (err != -EOPNOTSUPP)
-				ext3_warning(sb, __func__, "Discard command "
-					     "returned error %d\n", err);
-			break;
-		}
-
-		if (fatal_signal_pending(current)) {
-			err = -ERESTARTSYS;
-			break;
-		}
-
-		cond_resched();
-
-		/* No more suitable extents */
-		if (free_blocks < minblocks)
-			break;
-	}
-
-	/* We dirtied the bitmap block */
-	BUFFER_TRACE(bitmap_bh, "dirtied bitmap block");
-	ret = ext3_journal_dirty_metadata(handle, bitmap_bh);
-	if (!err)
-		err = ret;
-
-	/* And the group descriptor block */
-	BUFFER_TRACE(gdp_bh, "dirtied group descriptor block");
-	ret = ext3_journal_dirty_metadata(handle, gdp_bh);
-	if (!err)
-		err = ret;
-
-	ext3_debug("trimmed %d blocks in the group %d\n",
-		count, group);
-
-err_out:
-	if (err)
-		count = err;
-	ext3_journal_stop(handle);
-	brelse(bitmap_bh);
-
-	return count;
-}
-
-/**
- * ext3_trim_fs() -- trim ioctl handle function
- * @sb:			superblock for filesystem
- * @start:		First Byte to trim
- * @len:		number of Bytes to trim from start
- * @minlen:		minimum extent length in Bytes
- *
- * ext3_trim_fs goes through all allocation groups containing Bytes from
- * start to start+len. For each such a group ext3_trim_all_free function
- * is invoked to trim all free space.
- */
-int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range)
-{
-	ext3_grpblk_t last_block, first_block;
-	unsigned long group, first_group, last_group;
-	struct ext3_group_desc *gdp;
-	struct ext3_super_block *es = EXT3_SB(sb)->s_es;
-	uint64_t start, minlen, end, trimmed = 0;
-	ext3_fsblk_t first_data_blk =
-			le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block);
-	ext3_fsblk_t max_blks = le32_to_cpu(es->s_blocks_count);
-	int ret = 0;
-
-	start = range->start >> sb->s_blocksize_bits;
-	end = start + (range->len >> sb->s_blocksize_bits) - 1;
-	minlen = range->minlen >> sb->s_blocksize_bits;
-
-	if (minlen > EXT3_BLOCKS_PER_GROUP(sb) ||
-	    start >= max_blks ||
-	    range->len < sb->s_blocksize)
-		return -EINVAL;
-	if (end >= max_blks)
-		end = max_blks - 1;
-	if (end <= first_data_blk)
-		goto out;
-	if (start < first_data_blk)
-		start = first_data_blk;
-
-	smp_rmb();
-
-	/* Determine first and last group to examine based on start and len */
-	ext3_get_group_no_and_offset(sb, (ext3_fsblk_t) start,
-				     &first_group, &first_block);
-	ext3_get_group_no_and_offset(sb, (ext3_fsblk_t) end,
-				     &last_group, &last_block);
-
-	/* end now represents the last block to discard in this group */
-	end = EXT3_BLOCKS_PER_GROUP(sb) - 1;
-
-	for (group = first_group; group <= last_group; group++) {
-		gdp = ext3_get_group_desc(sb, group, NULL);
-		if (!gdp)
-			break;
-
-		/*
-		 * For all the groups except the last one, last block will
-		 * always be EXT3_BLOCKS_PER_GROUP(sb)-1, so we only need to
-		 * change it for the last group, note that last_block is
-		 * already computed earlier by ext3_get_group_no_and_offset()
-		 */
-		if (group == last_group)
-			end = last_block;
-
-		if (le16_to_cpu(gdp->bg_free_blocks_count) >= minlen) {
-			ret = ext3_trim_all_free(sb, group, first_block,
-						 end, minlen);
-			if (ret < 0)
-				break;
-			trimmed += ret;
-		}
-
-		/*
-		 * For every group except the first one, we are sure
-		 * that the first block to discard will be block #0.
-		 */
-		first_block = 0;
-	}
-
-	if (ret > 0)
-		ret = 0;
-
-out:
-	range->len = trimmed * sb->s_blocksize;
-	return ret;
-}
diff --git a/fs/ext3/bitmap.c b/fs/ext3/bitmap.c
deleted file mode 100644
index ef9c643e8..000000000
--- a/fs/ext3/bitmap.c
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- *  linux/fs/ext3/bitmap.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- */
-
-#include "ext3.h"
-
-#ifdef EXT3FS_DEBUG
-
-unsigned long ext3_count_free (struct buffer_head * map, unsigned int numchars)
-{
-	return numchars * BITS_PER_BYTE - memweight(map->b_data, numchars);
-}
-
-#endif  /*  EXT3FS_DEBUG  */
-
diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c
deleted file mode 100644
index 17742eed2..000000000
--- a/fs/ext3/dir.c
+++ /dev/null
@@ -1,537 +0,0 @@
-/*
- *  linux/fs/ext3/dir.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- *  from
- *
- *  linux/fs/minix/dir.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *
- *  ext3 directory handling functions
- *
- *  Big-endian to little-endian byte-swapping/bitmaps by
- *        David S. Miller (davem@caip.rutgers.edu), 1995
- *
- * Hash Tree Directory indexing (c) 2001  Daniel Phillips
- *
- */
-
-#include <linux/compat.h>
-#include "ext3.h"
-
-static unsigned char ext3_filetype_table[] = {
-	DT_UNKNOWN, DT_REG, DT_DIR, DT_CHR, DT_BLK, DT_FIFO, DT_SOCK, DT_LNK
-};
-
-static int ext3_dx_readdir(struct file *, struct dir_context *);
-
-static unsigned char get_dtype(struct super_block *sb, int filetype)
-{
-	if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_FILETYPE) ||
-	    (filetype >= EXT3_FT_MAX))
-		return DT_UNKNOWN;
-
-	return (ext3_filetype_table[filetype]);
-}
-
-/**
- * Check if the given dir-inode refers to an htree-indexed directory
- * (or a directory which could potentially get converted to use htree
- * indexing).
- *
- * Return 1 if it is a dx dir, 0 if not
- */
-static int is_dx_dir(struct inode *inode)
-{
-	struct super_block *sb = inode->i_sb;
-
-	if (EXT3_HAS_COMPAT_FEATURE(inode->i_sb,
-		     EXT3_FEATURE_COMPAT_DIR_INDEX) &&
-	    ((EXT3_I(inode)->i_flags & EXT3_INDEX_FL) ||
-	     ((inode->i_size >> sb->s_blocksize_bits) == 1)))
-		return 1;
-
-	return 0;
-}
-
-int ext3_check_dir_entry (const char * function, struct inode * dir,
-			  struct ext3_dir_entry_2 * de,
-			  struct buffer_head * bh,
-			  unsigned long offset)
-{
-	const char * error_msg = NULL;
-	const int rlen = ext3_rec_len_from_disk(de->rec_len);
-
-	if (unlikely(rlen < EXT3_DIR_REC_LEN(1)))
-		error_msg = "rec_len is smaller than minimal";
-	else if (unlikely(rlen % 4 != 0))
-		error_msg = "rec_len % 4 != 0";
-	else if (unlikely(rlen < EXT3_DIR_REC_LEN(de->name_len)))
-		error_msg = "rec_len is too small for name_len";
-	else if (unlikely((((char *) de - bh->b_data) + rlen > dir->i_sb->s_blocksize)))
-		error_msg = "directory entry across blocks";
-	else if (unlikely(le32_to_cpu(de->inode) >
-			le32_to_cpu(EXT3_SB(dir->i_sb)->s_es->s_inodes_count)))
-		error_msg = "inode out of bounds";
-
-	if (unlikely(error_msg != NULL))
-		ext3_error (dir->i_sb, function,
-			"bad entry in directory #%lu: %s - "
-			"offset=%lu, inode=%lu, rec_len=%d, name_len=%d",
-			dir->i_ino, error_msg, offset,
-			(unsigned long) le32_to_cpu(de->inode),
-			rlen, de->name_len);
-
-	return error_msg == NULL ? 1 : 0;
-}
-
-static int ext3_readdir(struct file *file, struct dir_context *ctx)
-{
-	unsigned long offset;
-	int i;
-	struct ext3_dir_entry_2 *de;
-	int err;
-	struct inode *inode = file_inode(file);
-	struct super_block *sb = inode->i_sb;
-	int dir_has_error = 0;
-
-	if (is_dx_dir(inode)) {
-		err = ext3_dx_readdir(file, ctx);
-		if (err != ERR_BAD_DX_DIR)
-			return err;
-		/*
-		 * We don't set the inode dirty flag since it's not
-		 * critical that it get flushed back to the disk.
-		 */
-		EXT3_I(inode)->i_flags &= ~EXT3_INDEX_FL;
-	}
-	offset = ctx->pos & (sb->s_blocksize - 1);
-
-	while (ctx->pos < inode->i_size) {
-		unsigned long blk = ctx->pos >> EXT3_BLOCK_SIZE_BITS(sb);
-		struct buffer_head map_bh;
-		struct buffer_head *bh = NULL;
-
-		map_bh.b_state = 0;
-		err = ext3_get_blocks_handle(NULL, inode, blk, 1, &map_bh, 0);
-		if (err > 0) {
-			pgoff_t index = map_bh.b_blocknr >>
-					(PAGE_CACHE_SHIFT - inode->i_blkbits);
-			if (!ra_has_index(&file->f_ra, index))
-				page_cache_sync_readahead(
-					sb->s_bdev->bd_inode->i_mapping,
-					&file->f_ra, file,
-					index, 1);
-			file->f_ra.prev_pos = (loff_t)index << PAGE_CACHE_SHIFT;
-			bh = ext3_bread(NULL, inode, blk, 0, &err);
-		}
-
-		/*
-		 * We ignore I/O errors on directories so users have a chance
-		 * of recovering data when there's a bad sector
-		 */
-		if (!bh) {
-			if (!dir_has_error) {
-				ext3_error(sb, __func__, "directory #%lu "
-					"contains a hole at offset %lld",
-					inode->i_ino, ctx->pos);
-				dir_has_error = 1;
-			}
-			/* corrupt size?  Maybe no more blocks to read */
-			if (ctx->pos > inode->i_blocks << 9)
-				break;
-			ctx->pos += sb->s_blocksize - offset;
-			continue;
-		}
-
-		/* If the dir block has changed since the last call to
-		 * readdir(2), then we might be pointing to an invalid
-		 * dirent right now.  Scan from the start of the block
-		 * to make sure. */
-		if (offset && file->f_version != inode->i_version) {
-			for (i = 0; i < sb->s_blocksize && i < offset; ) {
-				de = (struct ext3_dir_entry_2 *)
-					(bh->b_data + i);
-				/* It's too expensive to do a full
-				 * dirent test each time round this
-				 * loop, but we do have to test at
-				 * least that it is non-zero.  A
-				 * failure will be detected in the
-				 * dirent test below. */
-				if (ext3_rec_len_from_disk(de->rec_len) <
-						EXT3_DIR_REC_LEN(1))
-					break;
-				i += ext3_rec_len_from_disk(de->rec_len);
-			}
-			offset = i;
-			ctx->pos = (ctx->pos & ~(sb->s_blocksize - 1))
-				| offset;
-			file->f_version = inode->i_version;
-		}
-
-		while (ctx->pos < inode->i_size
-		       && offset < sb->s_blocksize) {
-			de = (struct ext3_dir_entry_2 *) (bh->b_data + offset);
-			if (!ext3_check_dir_entry ("ext3_readdir", inode, de,
-						   bh, offset)) {
-				/* On error, skip the to the
-                                   next block. */
-				ctx->pos = (ctx->pos |
-						(sb->s_blocksize - 1)) + 1;
-				break;
-			}
-			offset += ext3_rec_len_from_disk(de->rec_len);
-			if (le32_to_cpu(de->inode)) {
-				if (!dir_emit(ctx, de->name, de->name_len,
-					      le32_to_cpu(de->inode),
-					      get_dtype(sb, de->file_type))) {
-					brelse(bh);
-					return 0;
-				}
-			}
-			ctx->pos += ext3_rec_len_from_disk(de->rec_len);
-		}
-		offset = 0;
-		brelse (bh);
-		if (ctx->pos < inode->i_size)
-			if (!dir_relax(inode))
-				return 0;
-	}
-	return 0;
-}
-
-static inline int is_32bit_api(void)
-{
-#ifdef CONFIG_COMPAT
-	return is_compat_task();
-#else
-	return (BITS_PER_LONG == 32);
-#endif
-}
-
-/*
- * These functions convert from the major/minor hash to an f_pos
- * value for dx directories
- *
- * Upper layer (for example NFS) should specify FMODE_32BITHASH or
- * FMODE_64BITHASH explicitly. On the other hand, we allow ext3 to be mounted
- * directly on both 32-bit and 64-bit nodes, under such case, neither
- * FMODE_32BITHASH nor FMODE_64BITHASH is specified.
- */
-static inline loff_t hash2pos(struct file *filp, __u32 major, __u32 minor)
-{
-	if ((filp->f_mode & FMODE_32BITHASH) ||
-	    (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
-		return major >> 1;
-	else
-		return ((__u64)(major >> 1) << 32) | (__u64)minor;
-}
-
-static inline __u32 pos2maj_hash(struct file *filp, loff_t pos)
-{
-	if ((filp->f_mode & FMODE_32BITHASH) ||
-	    (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
-		return (pos << 1) & 0xffffffff;
-	else
-		return ((pos >> 32) << 1) & 0xffffffff;
-}
-
-static inline __u32 pos2min_hash(struct file *filp, loff_t pos)
-{
-	if ((filp->f_mode & FMODE_32BITHASH) ||
-	    (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
-		return 0;
-	else
-		return pos & 0xffffffff;
-}
-
-/*
- * Return 32- or 64-bit end-of-file for dx directories
- */
-static inline loff_t ext3_get_htree_eof(struct file *filp)
-{
-	if ((filp->f_mode & FMODE_32BITHASH) ||
-	    (!(filp->f_mode & FMODE_64BITHASH) && is_32bit_api()))
-		return EXT3_HTREE_EOF_32BIT;
-	else
-		return EXT3_HTREE_EOF_64BIT;
-}
-
-
-/*
- * ext3_dir_llseek() calls generic_file_llseek[_size]() to handle both
- * non-htree and htree directories, where the "offset" is in terms
- * of the filename hash value instead of the byte offset.
- *
- * Because we may return a 64-bit hash that is well beyond s_maxbytes,
- * we need to pass the max hash as the maximum allowable offset in
- * the htree directory case.
- *
- * NOTE: offsets obtained *before* ext3_set_inode_flag(dir, EXT3_INODE_INDEX)
- *       will be invalid once the directory was converted into a dx directory
- */
-static loff_t ext3_dir_llseek(struct file *file, loff_t offset, int whence)
-{
-	struct inode *inode = file->f_mapping->host;
-	int dx_dir = is_dx_dir(inode);
-	loff_t htree_max = ext3_get_htree_eof(file);
-
-	if (likely(dx_dir))
-		return generic_file_llseek_size(file, offset, whence,
-					        htree_max, htree_max);
-	else
-		return generic_file_llseek(file, offset, whence);
-}
-
-/*
- * This structure holds the nodes of the red-black tree used to store
- * the directory entry in hash order.
- */
-struct fname {
-	__u32		hash;
-	__u32		minor_hash;
-	struct rb_node	rb_hash;
-	struct fname	*next;
-	__u32		inode;
-	__u8		name_len;
-	__u8		file_type;
-	char		name[0];
-};
-
-/*
- * This functoin implements a non-recursive way of freeing all of the
- * nodes in the red-black tree.
- */
-static void free_rb_tree_fname(struct rb_root *root)
-{
-	struct fname *fname, *next;
-
-	rbtree_postorder_for_each_entry_safe(fname, next, root, rb_hash)
-		do {
-			struct fname *old = fname;
-			fname = fname->next;
-			kfree(old);
-		} while (fname);
-
-	*root = RB_ROOT;
-}
-
-static struct dir_private_info *ext3_htree_create_dir_info(struct file *filp,
-							   loff_t pos)
-{
-	struct dir_private_info *p;
-
-	p = kzalloc(sizeof(struct dir_private_info), GFP_KERNEL);
-	if (!p)
-		return NULL;
-	p->curr_hash = pos2maj_hash(filp, pos);
-	p->curr_minor_hash = pos2min_hash(filp, pos);
-	return p;
-}
-
-void ext3_htree_free_dir_info(struct dir_private_info *p)
-{
-	free_rb_tree_fname(&p->root);
-	kfree(p);
-}
-
-/*
- * Given a directory entry, enter it into the fname rb tree.
- */
-int ext3_htree_store_dirent(struct file *dir_file, __u32 hash,
-			     __u32 minor_hash,
-			     struct ext3_dir_entry_2 *dirent)
-{
-	struct rb_node **p, *parent = NULL;
-	struct fname * fname, *new_fn;
-	struct dir_private_info *info;
-	int len;
-
-	info = (struct dir_private_info *) dir_file->private_data;
-	p = &info->root.rb_node;
-
-	/* Create and allocate the fname structure */
-	len = sizeof(struct fname) + dirent->name_len + 1;
-	new_fn = kzalloc(len, GFP_KERNEL);
-	if (!new_fn)
-		return -ENOMEM;
-	new_fn->hash = hash;
-	new_fn->minor_hash = minor_hash;
-	new_fn->inode = le32_to_cpu(dirent->inode);
-	new_fn->name_len = dirent->name_len;
-	new_fn->file_type = dirent->file_type;
-	memcpy(new_fn->name, dirent->name, dirent->name_len);
-	new_fn->name[dirent->name_len] = 0;
-
-	while (*p) {
-		parent = *p;
-		fname = rb_entry(parent, struct fname, rb_hash);
-
-		/*
-		 * If the hash and minor hash match up, then we put
-		 * them on a linked list.  This rarely happens...
-		 */
-		if ((new_fn->hash == fname->hash) &&
-		    (new_fn->minor_hash == fname->minor_hash)) {
-			new_fn->next = fname->next;
-			fname->next = new_fn;
-			return 0;
-		}
-
-		if (new_fn->hash < fname->hash)
-			p = &(*p)->rb_left;
-		else if (new_fn->hash > fname->hash)
-			p = &(*p)->rb_right;
-		else if (new_fn->minor_hash < fname->minor_hash)
-			p = &(*p)->rb_left;
-		else /* if (new_fn->minor_hash > fname->minor_hash) */
-			p = &(*p)->rb_right;
-	}
-
-	rb_link_node(&new_fn->rb_hash, parent, p);
-	rb_insert_color(&new_fn->rb_hash, &info->root);
-	return 0;
-}
-
-
-
-/*
- * This is a helper function for ext3_dx_readdir.  It calls filldir
- * for all entres on the fname linked list.  (Normally there is only
- * one entry on the linked list, unless there are 62 bit hash collisions.)
- */
-static bool call_filldir(struct file *file, struct dir_context *ctx,
-			struct fname *fname)
-{
-	struct dir_private_info *info = file->private_data;
-	struct inode *inode = file_inode(file);
-	struct super_block *sb = inode->i_sb;
-
-	if (!fname) {
-		printk("call_filldir: called with null fname?!?\n");
-		return true;
-	}
-	ctx->pos = hash2pos(file, fname->hash, fname->minor_hash);
-	while (fname) {
-		if (!dir_emit(ctx, fname->name, fname->name_len,
-				fname->inode,
-				get_dtype(sb, fname->file_type))) {
-			info->extra_fname = fname;
-			return false;
-		}
-		fname = fname->next;
-	}
-	return true;
-}
-
-static int ext3_dx_readdir(struct file *file, struct dir_context *ctx)
-{
-	struct dir_private_info *info = file->private_data;
-	struct inode *inode = file_inode(file);
-	struct fname *fname;
-	int	ret;
-
-	if (!info) {
-		info = ext3_htree_create_dir_info(file, ctx->pos);
-		if (!info)
-			return -ENOMEM;
-		file->private_data = info;
-	}
-
-	if (ctx->pos == ext3_get_htree_eof(file))
-		return 0;	/* EOF */
-
-	/* Some one has messed with f_pos; reset the world */
-	if (info->last_pos != ctx->pos) {
-		free_rb_tree_fname(&info->root);
-		info->curr_node = NULL;
-		info->extra_fname = NULL;
-		info->curr_hash = pos2maj_hash(file, ctx->pos);
-		info->curr_minor_hash = pos2min_hash(file, ctx->pos);
-	}
-
-	/*
-	 * If there are any leftover names on the hash collision
-	 * chain, return them first.
-	 */
-	if (info->extra_fname) {
-		if (!call_filldir(file, ctx, info->extra_fname))
-			goto finished;
-		info->extra_fname = NULL;
-		goto next_node;
-	} else if (!info->curr_node)
-		info->curr_node = rb_first(&info->root);
-
-	while (1) {
-		/*
-		 * Fill the rbtree if we have no more entries,
-		 * or the inode has changed since we last read in the
-		 * cached entries.
-		 */
-		if ((!info->curr_node) ||
-		    (file->f_version != inode->i_version)) {
-			info->curr_node = NULL;
-			free_rb_tree_fname(&info->root);
-			file->f_version = inode->i_version;
-			ret = ext3_htree_fill_tree(file, info->curr_hash,
-						   info->curr_minor_hash,
-						   &info->next_hash);
-			if (ret < 0)
-				return ret;
-			if (ret == 0) {
-				ctx->pos = ext3_get_htree_eof(file);
-				break;
-			}
-			info->curr_node = rb_first(&info->root);
-		}
-
-		fname = rb_entry(info->curr_node, struct fname, rb_hash);
-		info->curr_hash = fname->hash;
-		info->curr_minor_hash = fname->minor_hash;
-		if (!call_filldir(file, ctx, fname))
-			break;
-	next_node:
-		info->curr_node = rb_next(info->curr_node);
-		if (info->curr_node) {
-			fname = rb_entry(info->curr_node, struct fname,
-					 rb_hash);
-			info->curr_hash = fname->hash;
-			info->curr_minor_hash = fname->minor_hash;
-		} else {
-			if (info->next_hash == ~0) {
-				ctx->pos = ext3_get_htree_eof(file);
-				break;
-			}
-			info->curr_hash = info->next_hash;
-			info->curr_minor_hash = 0;
-		}
-	}
-finished:
-	info->last_pos = ctx->pos;
-	return 0;
-}
-
-static int ext3_release_dir (struct inode * inode, struct file * filp)
-{
-       if (filp->private_data)
-		ext3_htree_free_dir_info(filp->private_data);
-
-	return 0;
-}
-
-const struct file_operations ext3_dir_operations = {
-	.llseek		= ext3_dir_llseek,
-	.read		= generic_read_dir,
-	.iterate	= ext3_readdir,
-	.unlocked_ioctl = ext3_ioctl,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl	= ext3_compat_ioctl,
-#endif
-	.fsync		= ext3_sync_file,
-	.release	= ext3_release_dir,
-};
diff --git a/fs/ext3/ext3.h b/fs/ext3/ext3.h
deleted file mode 100644
index f483a80b3..000000000
--- a/fs/ext3/ext3.h
+++ /dev/null
@@ -1,1332 +0,0 @@
-/*
- * Written by Stephen C. Tweedie <sct@redhat.com>, 1999
- *
- * Copyright 1998--1999 Red Hat corp --- All Rights Reserved
- *
- * This file is part of the Linux kernel and is made available under
- * the terms of the GNU General Public License, version 2, or at your
- * option, any later version, incorporated herein by reference.
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- *  from
- *
- *  linux/include/linux/minix_fs.h
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- */
-
-#include <linux/fs.h>
-#include <linux/jbd.h>
-#include <linux/magic.h>
-#include <linux/bug.h>
-#include <linux/blockgroup_lock.h>
-
-/*
- * The second extended filesystem constants/structures
- */
-
-/*
- * Define EXT3FS_DEBUG to produce debug messages
- */
-#undef EXT3FS_DEBUG
-
-/*
- * Define EXT3_RESERVATION to reserve data blocks for expanding files
- */
-#define EXT3_DEFAULT_RESERVE_BLOCKS     8
-/*max window size: 1024(direct blocks) + 3([t,d]indirect blocks) */
-#define EXT3_MAX_RESERVE_BLOCKS         1027
-#define EXT3_RESERVE_WINDOW_NOT_ALLOCATED 0
-
-/*
- * Debug code
- */
-#ifdef EXT3FS_DEBUG
-#define ext3_debug(f, a...)						\
-	do {								\
-		printk (KERN_DEBUG "EXT3-fs DEBUG (%s, %d): %s:",	\
-			__FILE__, __LINE__, __func__);		\
-		printk (KERN_DEBUG f, ## a);				\
-	} while (0)
-#else
-#define ext3_debug(f, a...)	do {} while (0)
-#endif
-
-/*
- * Special inodes numbers
- */
-#define	EXT3_BAD_INO		 1	/* Bad blocks inode */
-#define EXT3_ROOT_INO		 2	/* Root inode */
-#define EXT3_BOOT_LOADER_INO	 5	/* Boot loader inode */
-#define EXT3_UNDEL_DIR_INO	 6	/* Undelete directory inode */
-#define EXT3_RESIZE_INO		 7	/* Reserved group descriptors inode */
-#define EXT3_JOURNAL_INO	 8	/* Journal inode */
-
-/* First non-reserved inode for old ext3 filesystems */
-#define EXT3_GOOD_OLD_FIRST_INO	11
-
-/*
- * Maximal count of links to a file
- */
-#define EXT3_LINK_MAX		32000
-
-/*
- * Macro-instructions used to manage several block sizes
- */
-#define EXT3_MIN_BLOCK_SIZE		1024
-#define	EXT3_MAX_BLOCK_SIZE		65536
-#define EXT3_MIN_BLOCK_LOG_SIZE		10
-#define EXT3_BLOCK_SIZE(s)		((s)->s_blocksize)
-#define	EXT3_ADDR_PER_BLOCK(s)		(EXT3_BLOCK_SIZE(s) / sizeof (__u32))
-#define EXT3_BLOCK_SIZE_BITS(s)	((s)->s_blocksize_bits)
-#define	EXT3_ADDR_PER_BLOCK_BITS(s)	(EXT3_SB(s)->s_addr_per_block_bits)
-#define EXT3_INODE_SIZE(s)		(EXT3_SB(s)->s_inode_size)
-#define EXT3_FIRST_INO(s)		(EXT3_SB(s)->s_first_ino)
-
-/*
- * Macro-instructions used to manage fragments
- */
-#define EXT3_MIN_FRAG_SIZE		1024
-#define	EXT3_MAX_FRAG_SIZE		4096
-#define EXT3_MIN_FRAG_LOG_SIZE		  10
-#define EXT3_FRAG_SIZE(s)		(EXT3_SB(s)->s_frag_size)
-#define EXT3_FRAGS_PER_BLOCK(s)		(EXT3_SB(s)->s_frags_per_block)
-
-/*
- * Structure of a blocks group descriptor
- */
-struct ext3_group_desc
-{
-	__le32	bg_block_bitmap;		/* Blocks bitmap block */
-	__le32	bg_inode_bitmap;		/* Inodes bitmap block */
-	__le32	bg_inode_table;		/* Inodes table block */
-	__le16	bg_free_blocks_count;	/* Free blocks count */
-	__le16	bg_free_inodes_count;	/* Free inodes count */
-	__le16	bg_used_dirs_count;	/* Directories count */
-	__u16	bg_pad;
-	__le32	bg_reserved[3];
-};
-
-/*
- * Macro-instructions used to manage group descriptors
- */
-#define EXT3_BLOCKS_PER_GROUP(s)	(EXT3_SB(s)->s_blocks_per_group)
-#define EXT3_DESC_PER_BLOCK(s)		(EXT3_SB(s)->s_desc_per_block)
-#define EXT3_INODES_PER_GROUP(s)	(EXT3_SB(s)->s_inodes_per_group)
-#define EXT3_DESC_PER_BLOCK_BITS(s)	(EXT3_SB(s)->s_desc_per_block_bits)
-
-/*
- * Constants relative to the data blocks
- */
-#define	EXT3_NDIR_BLOCKS		12
-#define	EXT3_IND_BLOCK			EXT3_NDIR_BLOCKS
-#define	EXT3_DIND_BLOCK			(EXT3_IND_BLOCK + 1)
-#define	EXT3_TIND_BLOCK			(EXT3_DIND_BLOCK + 1)
-#define	EXT3_N_BLOCKS			(EXT3_TIND_BLOCK + 1)
-
-/*
- * Inode flags
- */
-#define	EXT3_SECRM_FL			0x00000001 /* Secure deletion */
-#define	EXT3_UNRM_FL			0x00000002 /* Undelete */
-#define	EXT3_COMPR_FL			0x00000004 /* Compress file */
-#define EXT3_SYNC_FL			0x00000008 /* Synchronous updates */
-#define EXT3_IMMUTABLE_FL		0x00000010 /* Immutable file */
-#define EXT3_APPEND_FL			0x00000020 /* writes to file may only append */
-#define EXT3_NODUMP_FL			0x00000040 /* do not dump file */
-#define EXT3_NOATIME_FL			0x00000080 /* do not update atime */
-/* Reserved for compression usage... */
-#define EXT3_DIRTY_FL			0x00000100
-#define EXT3_COMPRBLK_FL		0x00000200 /* One or more compressed clusters */
-#define EXT3_NOCOMPR_FL			0x00000400 /* Don't compress */
-#define EXT3_ECOMPR_FL			0x00000800 /* Compression error */
-/* End compression flags --- maybe not all used */
-#define EXT3_INDEX_FL			0x00001000 /* hash-indexed directory */
-#define EXT3_IMAGIC_FL			0x00002000 /* AFS directory */
-#define EXT3_JOURNAL_DATA_FL		0x00004000 /* file data should be journaled */
-#define EXT3_NOTAIL_FL			0x00008000 /* file tail should not be merged */
-#define EXT3_DIRSYNC_FL			0x00010000 /* dirsync behaviour (directories only) */
-#define EXT3_TOPDIR_FL			0x00020000 /* Top of directory hierarchies*/
-#define EXT3_RESERVED_FL		0x80000000 /* reserved for ext3 lib */
-
-#define EXT3_FL_USER_VISIBLE		0x0003DFFF /* User visible flags */
-#define EXT3_FL_USER_MODIFIABLE		0x000380FF /* User modifiable flags */
-
-/* Flags that should be inherited by new inodes from their parent. */
-#define EXT3_FL_INHERITED (EXT3_SECRM_FL | EXT3_UNRM_FL | EXT3_COMPR_FL |\
-			   EXT3_SYNC_FL | EXT3_NODUMP_FL |\
-			   EXT3_NOATIME_FL | EXT3_COMPRBLK_FL |\
-			   EXT3_NOCOMPR_FL | EXT3_JOURNAL_DATA_FL |\
-			   EXT3_NOTAIL_FL | EXT3_DIRSYNC_FL)
-
-/* Flags that are appropriate for regular files (all but dir-specific ones). */
-#define EXT3_REG_FLMASK (~(EXT3_DIRSYNC_FL | EXT3_TOPDIR_FL))
-
-/* Flags that are appropriate for non-directories/regular files. */
-#define EXT3_OTHER_FLMASK (EXT3_NODUMP_FL | EXT3_NOATIME_FL)
-
-/* Mask out flags that are inappropriate for the given type of inode. */
-static inline __u32 ext3_mask_flags(umode_t mode, __u32 flags)
-{
-	if (S_ISDIR(mode))
-		return flags;
-	else if (S_ISREG(mode))
-		return flags & EXT3_REG_FLMASK;
-	else
-		return flags & EXT3_OTHER_FLMASK;
-}
-
-/* Used to pass group descriptor data when online resize is done */
-struct ext3_new_group_input {
-	__u32 group;            /* Group number for this data */
-	__u32 block_bitmap;     /* Absolute block number of block bitmap */
-	__u32 inode_bitmap;     /* Absolute block number of inode bitmap */
-	__u32 inode_table;      /* Absolute block number of inode table start */
-	__u32 blocks_count;     /* Total number of blocks in this group */
-	__u16 reserved_blocks;  /* Number of reserved blocks in this group */
-	__u16 unused;
-};
-
-/* The struct ext3_new_group_input in kernel space, with free_blocks_count */
-struct ext3_new_group_data {
-	__u32 group;
-	__u32 block_bitmap;
-	__u32 inode_bitmap;
-	__u32 inode_table;
-	__u32 blocks_count;
-	__u16 reserved_blocks;
-	__u16 unused;
-	__u32 free_blocks_count;
-};
-
-
-/*
- * ioctl commands
- */
-#define	EXT3_IOC_GETFLAGS		FS_IOC_GETFLAGS
-#define	EXT3_IOC_SETFLAGS		FS_IOC_SETFLAGS
-#define	EXT3_IOC_GETVERSION		_IOR('f', 3, long)
-#define	EXT3_IOC_SETVERSION		_IOW('f', 4, long)
-#define EXT3_IOC_GROUP_EXTEND		_IOW('f', 7, unsigned long)
-#define EXT3_IOC_GROUP_ADD		_IOW('f', 8,struct ext3_new_group_input)
-#define	EXT3_IOC_GETVERSION_OLD		FS_IOC_GETVERSION
-#define	EXT3_IOC_SETVERSION_OLD		FS_IOC_SETVERSION
-#ifdef CONFIG_JBD_DEBUG
-#define EXT3_IOC_WAIT_FOR_READONLY	_IOR('f', 99, long)
-#endif
-#define EXT3_IOC_GETRSVSZ		_IOR('f', 5, long)
-#define EXT3_IOC_SETRSVSZ		_IOW('f', 6, long)
-
-/*
- * ioctl commands in 32 bit emulation
- */
-#define EXT3_IOC32_GETFLAGS		FS_IOC32_GETFLAGS
-#define EXT3_IOC32_SETFLAGS		FS_IOC32_SETFLAGS
-#define EXT3_IOC32_GETVERSION		_IOR('f', 3, int)
-#define EXT3_IOC32_SETVERSION		_IOW('f', 4, int)
-#define EXT3_IOC32_GETRSVSZ		_IOR('f', 5, int)
-#define EXT3_IOC32_SETRSVSZ		_IOW('f', 6, int)
-#define EXT3_IOC32_GROUP_EXTEND		_IOW('f', 7, unsigned int)
-#ifdef CONFIG_JBD_DEBUG
-#define EXT3_IOC32_WAIT_FOR_READONLY	_IOR('f', 99, int)
-#endif
-#define EXT3_IOC32_GETVERSION_OLD	FS_IOC32_GETVERSION
-#define EXT3_IOC32_SETVERSION_OLD	FS_IOC32_SETVERSION
-
-/* Number of supported quota types */
-#define EXT3_MAXQUOTAS 2
-
-/*
- *  Mount options
- */
-struct ext3_mount_options {
-	unsigned long s_mount_opt;
-	kuid_t s_resuid;
-	kgid_t s_resgid;
-	unsigned long s_commit_interval;
-#ifdef CONFIG_QUOTA
-	int s_jquota_fmt;
-	char *s_qf_names[EXT3_MAXQUOTAS];
-#endif
-};
-
-/*
- * Structure of an inode on the disk
- */
-struct ext3_inode {
-	__le16	i_mode;		/* File mode */
-	__le16	i_uid;		/* Low 16 bits of Owner Uid */
-	__le32	i_size;		/* Size in bytes */
-	__le32	i_atime;	/* Access time */
-	__le32	i_ctime;	/* Creation time */
-	__le32	i_mtime;	/* Modification time */
-	__le32	i_dtime;	/* Deletion Time */
-	__le16	i_gid;		/* Low 16 bits of Group Id */
-	__le16	i_links_count;	/* Links count */
-	__le32	i_blocks;	/* Blocks count */
-	__le32	i_flags;	/* File flags */
-	union {
-		struct {
-			__u32  l_i_reserved1;
-		} linux1;
-		struct {
-			__u32  h_i_translator;
-		} hurd1;
-		struct {
-			__u32  m_i_reserved1;
-		} masix1;
-	} osd1;				/* OS dependent 1 */
-	__le32	i_block[EXT3_N_BLOCKS];/* Pointers to blocks */
-	__le32	i_generation;	/* File version (for NFS) */
-	__le32	i_file_acl;	/* File ACL */
-	__le32	i_dir_acl;	/* Directory ACL */
-	__le32	i_faddr;	/* Fragment address */
-	union {
-		struct {
-			__u8	l_i_frag;	/* Fragment number */
-			__u8	l_i_fsize;	/* Fragment size */
-			__u16	i_pad1;
-			__le16	l_i_uid_high;	/* these 2 fields    */
-			__le16	l_i_gid_high;	/* were reserved2[0] */
-			__u32	l_i_reserved2;
-		} linux2;
-		struct {
-			__u8	h_i_frag;	/* Fragment number */
-			__u8	h_i_fsize;	/* Fragment size */
-			__u16	h_i_mode_high;
-			__u16	h_i_uid_high;
-			__u16	h_i_gid_high;
-			__u32	h_i_author;
-		} hurd2;
-		struct {
-			__u8	m_i_frag;	/* Fragment number */
-			__u8	m_i_fsize;	/* Fragment size */
-			__u16	m_pad1;
-			__u32	m_i_reserved2[2];
-		} masix2;
-	} osd2;				/* OS dependent 2 */
-	__le16	i_extra_isize;
-	__le16	i_pad1;
-};
-
-#define i_size_high	i_dir_acl
-
-#define i_reserved1	osd1.linux1.l_i_reserved1
-#define i_frag		osd2.linux2.l_i_frag
-#define i_fsize		osd2.linux2.l_i_fsize
-#define i_uid_low	i_uid
-#define i_gid_low	i_gid
-#define i_uid_high	osd2.linux2.l_i_uid_high
-#define i_gid_high	osd2.linux2.l_i_gid_high
-#define i_reserved2	osd2.linux2.l_i_reserved2
-
-/*
- * File system states
- */
-#define	EXT3_VALID_FS			0x0001	/* Unmounted cleanly */
-#define	EXT3_ERROR_FS			0x0002	/* Errors detected */
-#define	EXT3_ORPHAN_FS			0x0004	/* Orphans being recovered */
-
-/*
- * Misc. filesystem flags
- */
-#define EXT2_FLAGS_SIGNED_HASH		0x0001  /* Signed dirhash in use */
-#define EXT2_FLAGS_UNSIGNED_HASH	0x0002  /* Unsigned dirhash in use */
-#define EXT2_FLAGS_TEST_FILESYS		0x0004	/* to test development code */
-
-/*
- * Mount flags
- */
-#define EXT3_MOUNT_CHECK		0x00001	/* Do mount-time checks */
-/* EXT3_MOUNT_OLDALLOC was there */
-#define EXT3_MOUNT_GRPID		0x00004	/* Create files with directory's group */
-#define EXT3_MOUNT_DEBUG		0x00008	/* Some debugging messages */
-#define EXT3_MOUNT_ERRORS_CONT		0x00010	/* Continue on errors */
-#define EXT3_MOUNT_ERRORS_RO		0x00020	/* Remount fs ro on errors */
-#define EXT3_MOUNT_ERRORS_PANIC		0x00040	/* Panic on errors */
-#define EXT3_MOUNT_MINIX_DF		0x00080	/* Mimics the Minix statfs */
-#define EXT3_MOUNT_NOLOAD		0x00100	/* Don't use existing journal*/
-#define EXT3_MOUNT_ABORT		0x00200	/* Fatal error detected */
-#define EXT3_MOUNT_DATA_FLAGS		0x00C00	/* Mode for data writes: */
-#define EXT3_MOUNT_JOURNAL_DATA		0x00400	/* Write data to journal */
-#define EXT3_MOUNT_ORDERED_DATA		0x00800	/* Flush data before commit */
-#define EXT3_MOUNT_WRITEBACK_DATA	0x00C00	/* No data ordering */
-#define EXT3_MOUNT_UPDATE_JOURNAL	0x01000	/* Update the journal format */
-#define EXT3_MOUNT_NO_UID32		0x02000  /* Disable 32-bit UIDs */
-#define EXT3_MOUNT_XATTR_USER		0x04000	/* Extended user attributes */
-#define EXT3_MOUNT_POSIX_ACL		0x08000	/* POSIX Access Control Lists */
-#define EXT3_MOUNT_RESERVATION		0x10000	/* Preallocation */
-#define EXT3_MOUNT_BARRIER		0x20000 /* Use block barriers */
-#define EXT3_MOUNT_QUOTA		0x80000 /* Some quota option set */
-#define EXT3_MOUNT_USRQUOTA		0x100000 /* "old" user quota */
-#define EXT3_MOUNT_GRPQUOTA		0x200000 /* "old" group quota */
-#define EXT3_MOUNT_DATA_ERR_ABORT	0x400000 /* Abort on file data write
-						  * error in ordered mode */
-
-/* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
-#ifndef _LINUX_EXT2_FS_H
-#define clear_opt(o, opt)		o &= ~EXT3_MOUNT_##opt
-#define set_opt(o, opt)			o |= EXT3_MOUNT_##opt
-#define test_opt(sb, opt)		(EXT3_SB(sb)->s_mount_opt & \
-					 EXT3_MOUNT_##opt)
-#else
-#define EXT2_MOUNT_NOLOAD		EXT3_MOUNT_NOLOAD
-#define EXT2_MOUNT_ABORT		EXT3_MOUNT_ABORT
-#define EXT2_MOUNT_DATA_FLAGS		EXT3_MOUNT_DATA_FLAGS
-#endif
-
-#define ext3_set_bit			__set_bit_le
-#define ext3_set_bit_atomic		ext2_set_bit_atomic
-#define ext3_clear_bit			__clear_bit_le
-#define ext3_clear_bit_atomic		ext2_clear_bit_atomic
-#define ext3_test_bit			test_bit_le
-#define ext3_find_next_zero_bit		find_next_zero_bit_le
-
-/*
- * Maximal mount counts between two filesystem checks
- */
-#define EXT3_DFL_MAX_MNT_COUNT		20	/* Allow 20 mounts */
-#define EXT3_DFL_CHECKINTERVAL		0	/* Don't use interval check */
-
-/*
- * Behaviour when detecting errors
- */
-#define EXT3_ERRORS_CONTINUE		1	/* Continue execution */
-#define EXT3_ERRORS_RO			2	/* Remount fs read-only */
-#define EXT3_ERRORS_PANIC		3	/* Panic */
-#define EXT3_ERRORS_DEFAULT		EXT3_ERRORS_CONTINUE
-
-/*
- * Structure of the super block
- */
-struct ext3_super_block {
-/*00*/	__le32	s_inodes_count;		/* Inodes count */
-	__le32	s_blocks_count;		/* Blocks count */
-	__le32	s_r_blocks_count;	/* Reserved blocks count */
-	__le32	s_free_blocks_count;	/* Free blocks count */
-/*10*/	__le32	s_free_inodes_count;	/* Free inodes count */
-	__le32	s_first_data_block;	/* First Data Block */
-	__le32	s_log_block_size;	/* Block size */
-	__le32	s_log_frag_size;	/* Fragment size */
-/*20*/	__le32	s_blocks_per_group;	/* # Blocks per group */
-	__le32	s_frags_per_group;	/* # Fragments per group */
-	__le32	s_inodes_per_group;	/* # Inodes per group */
-	__le32	s_mtime;		/* Mount time */
-/*30*/	__le32	s_wtime;		/* Write time */
-	__le16	s_mnt_count;		/* Mount count */
-	__le16	s_max_mnt_count;	/* Maximal mount count */
-	__le16	s_magic;		/* Magic signature */
-	__le16	s_state;		/* File system state */
-	__le16	s_errors;		/* Behaviour when detecting errors */
-	__le16	s_minor_rev_level;	/* minor revision level */
-/*40*/	__le32	s_lastcheck;		/* time of last check */
-	__le32	s_checkinterval;	/* max. time between checks */
-	__le32	s_creator_os;		/* OS */
-	__le32	s_rev_level;		/* Revision level */
-/*50*/	__le16	s_def_resuid;		/* Default uid for reserved blocks */
-	__le16	s_def_resgid;		/* Default gid for reserved blocks */
-	/*
-	 * These fields are for EXT3_DYNAMIC_REV superblocks only.
-	 *
-	 * Note: the difference between the compatible feature set and
-	 * the incompatible feature set is that if there is a bit set
-	 * in the incompatible feature set that the kernel doesn't
-	 * know about, it should refuse to mount the filesystem.
-	 *
-	 * e2fsck's requirements are more strict; if it doesn't know
-	 * about a feature in either the compatible or incompatible
-	 * feature set, it must abort and not try to meddle with
-	 * things it doesn't understand...
-	 */
-	__le32	s_first_ino;		/* First non-reserved inode */
-	__le16   s_inode_size;		/* size of inode structure */
-	__le16	s_block_group_nr;	/* block group # of this superblock */
-	__le32	s_feature_compat;	/* compatible feature set */
-/*60*/	__le32	s_feature_incompat;	/* incompatible feature set */
-	__le32	s_feature_ro_compat;	/* readonly-compatible feature set */
-/*68*/	__u8	s_uuid[16];		/* 128-bit uuid for volume */
-/*78*/	char	s_volume_name[16];	/* volume name */
-/*88*/	char	s_last_mounted[64];	/* directory where last mounted */
-/*C8*/	__le32	s_algorithm_usage_bitmap; /* For compression */
-	/*
-	 * Performance hints.  Directory preallocation should only
-	 * happen if the EXT3_FEATURE_COMPAT_DIR_PREALLOC flag is on.
-	 */
-	__u8	s_prealloc_blocks;	/* Nr of blocks to try to preallocate*/
-	__u8	s_prealloc_dir_blocks;	/* Nr to preallocate for dirs */
-	__le16	s_reserved_gdt_blocks;	/* Per group desc for online growth */
-	/*
-	 * Journaling support valid if EXT3_FEATURE_COMPAT_HAS_JOURNAL set.
-	 */
-/*D0*/	__u8	s_journal_uuid[16];	/* uuid of journal superblock */
-/*E0*/	__le32	s_journal_inum;		/* inode number of journal file */
-	__le32	s_journal_dev;		/* device number of journal file */
-	__le32	s_last_orphan;		/* start of list of inodes to delete */
-	__le32	s_hash_seed[4];		/* HTREE hash seed */
-	__u8	s_def_hash_version;	/* Default hash version to use */
-	__u8	s_reserved_char_pad;
-	__u16	s_reserved_word_pad;
-	__le32	s_default_mount_opts;
-	__le32	s_first_meta_bg;	/* First metablock block group */
-	__le32	s_mkfs_time;		/* When the filesystem was created */
-	__le32	s_jnl_blocks[17];	/* Backup of the journal inode */
-	/* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */
-/*150*/	__le32	s_blocks_count_hi;	/* Blocks count */
-	__le32	s_r_blocks_count_hi;	/* Reserved blocks count */
-	__le32	s_free_blocks_count_hi;	/* Free blocks count */
-	__le16	s_min_extra_isize;	/* All inodes have at least # bytes */
-	__le16	s_want_extra_isize; 	/* New inodes should reserve # bytes */
-	__le32	s_flags;		/* Miscellaneous flags */
-	__le16  s_raid_stride;		/* RAID stride */
-	__le16  s_mmp_interval;         /* # seconds to wait in MMP checking */
-	__le64  s_mmp_block;            /* Block for multi-mount protection */
-	__le32  s_raid_stripe_width;    /* blocks on all data disks (N*stride)*/
-	__u8	s_log_groups_per_flex;  /* FLEX_BG group size */
-	__u8	s_reserved_char_pad2;
-	__le16  s_reserved_pad;
-	__u32   s_reserved[162];        /* Padding to the end of the block */
-};
-
-/* data type for block offset of block group */
-typedef int ext3_grpblk_t;
-
-/* data type for filesystem-wide blocks number */
-typedef unsigned long ext3_fsblk_t;
-
-#define E3FSBLK "%lu"
-
-struct ext3_reserve_window {
-	ext3_fsblk_t	_rsv_start;	/* First byte reserved */
-	ext3_fsblk_t	_rsv_end;	/* Last byte reserved or 0 */
-};
-
-struct ext3_reserve_window_node {
-	struct rb_node		rsv_node;
-	__u32			rsv_goal_size;
-	__u32			rsv_alloc_hit;
-	struct ext3_reserve_window	rsv_window;
-};
-
-struct ext3_block_alloc_info {
-	/* information about reservation window */
-	struct ext3_reserve_window_node	rsv_window_node;
-	/*
-	 * was i_next_alloc_block in ext3_inode_info
-	 * is the logical (file-relative) number of the
-	 * most-recently-allocated block in this file.
-	 * We use this for detecting linearly ascending allocation requests.
-	 */
-	__u32                   last_alloc_logical_block;
-	/*
-	 * Was i_next_alloc_goal in ext3_inode_info
-	 * is the *physical* companion to i_next_alloc_block.
-	 * it the physical block number of the block which was most-recentl
-	 * allocated to this file.  This give us the goal (target) for the next
-	 * allocation when we detect linearly ascending requests.
-	 */
-	ext3_fsblk_t		last_alloc_physical_block;
-};
-
-#define rsv_start rsv_window._rsv_start
-#define rsv_end rsv_window._rsv_end
-
-/*
- * third extended file system inode data in memory
- */
-struct ext3_inode_info {
-	__le32	i_data[15];	/* unconverted */
-	__u32	i_flags;
-#ifdef EXT3_FRAGMENTS
-	__u32	i_faddr;
-	__u8	i_frag_no;
-	__u8	i_frag_size;
-#endif
-	ext3_fsblk_t	i_file_acl;
-	__u32	i_dir_acl;
-	__u32	i_dtime;
-
-	/*
-	 * i_block_group is the number of the block group which contains
-	 * this file's inode.  Constant across the lifetime of the inode,
-	 * it is ued for making block allocation decisions - we try to
-	 * place a file's data blocks near its inode block, and new inodes
-	 * near to their parent directory's inode.
-	 */
-	__u32	i_block_group;
-	unsigned long	i_state_flags;	/* Dynamic state flags for ext3 */
-
-	/* block reservation info */
-	struct ext3_block_alloc_info *i_block_alloc_info;
-
-	__u32	i_dir_start_lookup;
-#ifdef CONFIG_EXT3_FS_XATTR
-	/*
-	 * Extended attributes can be read independently of the main file
-	 * data. Taking i_mutex even when reading would cause contention
-	 * between readers of EAs and writers of regular file data, so
-	 * instead we synchronize on xattr_sem when reading or changing
-	 * EAs.
-	 */
-	struct rw_semaphore xattr_sem;
-#endif
-
-	struct list_head i_orphan;	/* unlinked but open inodes */
-
-	/*
-	 * i_disksize keeps track of what the inode size is ON DISK, not
-	 * in memory.  During truncate, i_size is set to the new size by
-	 * the VFS prior to calling ext3_truncate(), but the filesystem won't
-	 * set i_disksize to 0 until the truncate is actually under way.
-	 *
-	 * The intent is that i_disksize always represents the blocks which
-	 * are used by this file.  This allows recovery to restart truncate
-	 * on orphans if we crash during truncate.  We actually write i_disksize
-	 * into the on-disk inode when writing inodes out, instead of i_size.
-	 *
-	 * The only time when i_disksize and i_size may be different is when
-	 * a truncate is in progress.  The only things which change i_disksize
-	 * are ext3_get_block (growth) and ext3_truncate (shrinkth).
-	 */
-	loff_t	i_disksize;
-
-	/* on-disk additional length */
-	__u16 i_extra_isize;
-
-	/*
-	 * truncate_mutex is for serialising ext3_truncate() against
-	 * ext3_getblock().  In the 2.4 ext2 design, great chunks of inode's
-	 * data tree are chopped off during truncate. We can't do that in
-	 * ext3 because whenever we perform intermediate commits during
-	 * truncate, the inode and all the metadata blocks *must* be in a
-	 * consistent state which allows truncation of the orphans to restart
-	 * during recovery.  Hence we must fix the get_block-vs-truncate race
-	 * by other means, so we have truncate_mutex.
-	 */
-	struct mutex truncate_mutex;
-
-	/*
-	 * Transactions that contain inode's metadata needed to complete
-	 * fsync and fdatasync, respectively.
-	 */
-	atomic_t i_sync_tid;
-	atomic_t i_datasync_tid;
-
-#ifdef CONFIG_QUOTA
-	struct dquot *i_dquot[MAXQUOTAS];
-#endif
-
-	struct inode vfs_inode;
-};
-
-/*
- * third extended-fs super-block data in memory
- */
-struct ext3_sb_info {
-	unsigned long s_frag_size;	/* Size of a fragment in bytes */
-	unsigned long s_frags_per_block;/* Number of fragments per block */
-	unsigned long s_inodes_per_block;/* Number of inodes per block */
-	unsigned long s_frags_per_group;/* Number of fragments in a group */
-	unsigned long s_blocks_per_group;/* Number of blocks in a group */
-	unsigned long s_inodes_per_group;/* Number of inodes in a group */
-	unsigned long s_itb_per_group;	/* Number of inode table blocks per group */
-	unsigned long s_gdb_count;	/* Number of group descriptor blocks */
-	unsigned long s_desc_per_block;	/* Number of group descriptors per block */
-	unsigned long s_groups_count;	/* Number of groups in the fs */
-	unsigned long s_overhead_last;  /* Last calculated overhead */
-	unsigned long s_blocks_last;    /* Last seen block count */
-	struct buffer_head * s_sbh;	/* Buffer containing the super block */
-	struct ext3_super_block * s_es;	/* Pointer to the super block in the buffer */
-	struct buffer_head ** s_group_desc;
-	unsigned long  s_mount_opt;
-	ext3_fsblk_t s_sb_block;
-	kuid_t s_resuid;
-	kgid_t s_resgid;
-	unsigned short s_mount_state;
-	unsigned short s_pad;
-	int s_addr_per_block_bits;
-	int s_desc_per_block_bits;
-	int s_inode_size;
-	int s_first_ino;
-	spinlock_t s_next_gen_lock;
-	u32 s_next_generation;
-	u32 s_hash_seed[4];
-	int s_def_hash_version;
-	int s_hash_unsigned;	/* 3 if hash should be signed, 0 if not */
-	struct percpu_counter s_freeblocks_counter;
-	struct percpu_counter s_freeinodes_counter;
-	struct percpu_counter s_dirs_counter;
-	struct blockgroup_lock *s_blockgroup_lock;
-
-	/* root of the per fs reservation window tree */
-	spinlock_t s_rsv_window_lock;
-	struct rb_root s_rsv_window_root;
-	struct ext3_reserve_window_node s_rsv_window_head;
-
-	/* Journaling */
-	struct inode * s_journal_inode;
-	struct journal_s * s_journal;
-	struct list_head s_orphan;
-	struct mutex s_orphan_lock;
-	struct mutex s_resize_lock;
-	unsigned long s_commit_interval;
-	struct block_device *journal_bdev;
-#ifdef CONFIG_QUOTA
-	char *s_qf_names[EXT3_MAXQUOTAS];	/* Names of quota files with journalled quota */
-	int s_jquota_fmt;			/* Format of quota to use */
-#endif
-};
-
-static inline spinlock_t *
-sb_bgl_lock(struct ext3_sb_info *sbi, unsigned int block_group)
-{
-	return bgl_lock_ptr(sbi->s_blockgroup_lock, block_group);
-}
-
-static inline struct ext3_sb_info * EXT3_SB(struct super_block *sb)
-{
-	return sb->s_fs_info;
-}
-static inline struct ext3_inode_info *EXT3_I(struct inode *inode)
-{
-	return container_of(inode, struct ext3_inode_info, vfs_inode);
-}
-
-static inline int ext3_valid_inum(struct super_block *sb, unsigned long ino)
-{
-	return ino == EXT3_ROOT_INO ||
-		ino == EXT3_JOURNAL_INO ||
-		ino == EXT3_RESIZE_INO ||
-		(ino >= EXT3_FIRST_INO(sb) &&
-		 ino <= le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count));
-}
-
-/*
- * Inode dynamic state flags
- */
-enum {
-	EXT3_STATE_JDATA,		/* journaled data exists */
-	EXT3_STATE_NEW,			/* inode is newly created */
-	EXT3_STATE_XATTR,		/* has in-inode xattrs */
-	EXT3_STATE_FLUSH_ON_CLOSE,	/* flush dirty pages on close */
-};
-
-static inline int ext3_test_inode_state(struct inode *inode, int bit)
-{
-	return test_bit(bit, &EXT3_I(inode)->i_state_flags);
-}
-
-static inline void ext3_set_inode_state(struct inode *inode, int bit)
-{
-	set_bit(bit, &EXT3_I(inode)->i_state_flags);
-}
-
-static inline void ext3_clear_inode_state(struct inode *inode, int bit)
-{
-	clear_bit(bit, &EXT3_I(inode)->i_state_flags);
-}
-
-#define NEXT_ORPHAN(inode) EXT3_I(inode)->i_dtime
-
-/*
- * Codes for operating systems
- */
-#define EXT3_OS_LINUX		0
-#define EXT3_OS_HURD		1
-#define EXT3_OS_MASIX		2
-#define EXT3_OS_FREEBSD		3
-#define EXT3_OS_LITES		4
-
-/*
- * Revision levels
- */
-#define EXT3_GOOD_OLD_REV	0	/* The good old (original) format */
-#define EXT3_DYNAMIC_REV	1	/* V2 format w/ dynamic inode sizes */
-
-#define EXT3_CURRENT_REV	EXT3_GOOD_OLD_REV
-#define EXT3_MAX_SUPP_REV	EXT3_DYNAMIC_REV
-
-#define EXT3_GOOD_OLD_INODE_SIZE 128
-
-/*
- * Feature set definitions
- */
-
-#define EXT3_HAS_COMPAT_FEATURE(sb,mask)			\
-	( EXT3_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) )
-#define EXT3_HAS_RO_COMPAT_FEATURE(sb,mask)			\
-	( EXT3_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) )
-#define EXT3_HAS_INCOMPAT_FEATURE(sb,mask)			\
-	( EXT3_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
-#define EXT3_SET_COMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
-#define EXT3_SET_RO_COMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
-#define EXT3_SET_INCOMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
-#define EXT3_CLEAR_COMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
-#define EXT3_CLEAR_RO_COMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
-#define EXT3_CLEAR_INCOMPAT_FEATURE(sb,mask)			\
-	EXT3_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
-
-#define EXT3_FEATURE_COMPAT_DIR_PREALLOC	0x0001
-#define EXT3_FEATURE_COMPAT_IMAGIC_INODES	0x0002
-#define EXT3_FEATURE_COMPAT_HAS_JOURNAL		0x0004
-#define EXT3_FEATURE_COMPAT_EXT_ATTR		0x0008
-#define EXT3_FEATURE_COMPAT_RESIZE_INODE	0x0010
-#define EXT3_FEATURE_COMPAT_DIR_INDEX		0x0020
-
-#define EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER	0x0001
-#define EXT3_FEATURE_RO_COMPAT_LARGE_FILE	0x0002
-#define EXT3_FEATURE_RO_COMPAT_BTREE_DIR	0x0004
-
-#define EXT3_FEATURE_INCOMPAT_COMPRESSION	0x0001
-#define EXT3_FEATURE_INCOMPAT_FILETYPE		0x0002
-#define EXT3_FEATURE_INCOMPAT_RECOVER		0x0004 /* Needs recovery */
-#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV	0x0008 /* Journal device */
-#define EXT3_FEATURE_INCOMPAT_META_BG		0x0010
-
-#define EXT3_FEATURE_COMPAT_SUPP	EXT2_FEATURE_COMPAT_EXT_ATTR
-#define EXT3_FEATURE_INCOMPAT_SUPP	(EXT3_FEATURE_INCOMPAT_FILETYPE| \
-					 EXT3_FEATURE_INCOMPAT_RECOVER| \
-					 EXT3_FEATURE_INCOMPAT_META_BG)
-#define EXT3_FEATURE_RO_COMPAT_SUPP	(EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER| \
-					 EXT3_FEATURE_RO_COMPAT_LARGE_FILE| \
-					 EXT3_FEATURE_RO_COMPAT_BTREE_DIR)
-
-/*
- * Default values for user and/or group using reserved blocks
- */
-#define	EXT3_DEF_RESUID		0
-#define	EXT3_DEF_RESGID		0
-
-/*
- * Default mount options
- */
-#define EXT3_DEFM_DEBUG		0x0001
-#define EXT3_DEFM_BSDGROUPS	0x0002
-#define EXT3_DEFM_XATTR_USER	0x0004
-#define EXT3_DEFM_ACL		0x0008
-#define EXT3_DEFM_UID16		0x0010
-#define EXT3_DEFM_JMODE		0x0060
-#define EXT3_DEFM_JMODE_DATA	0x0020
-#define EXT3_DEFM_JMODE_ORDERED	0x0040
-#define EXT3_DEFM_JMODE_WBACK	0x0060
-
-/*
- * Structure of a directory entry
- */
-#define EXT3_NAME_LEN 255
-
-struct ext3_dir_entry {
-	__le32	inode;			/* Inode number */
-	__le16	rec_len;		/* Directory entry length */
-	__le16	name_len;		/* Name length */
-	char	name[EXT3_NAME_LEN];	/* File name */
-};
-
-/*
- * The new version of the directory entry.  Since EXT3 structures are
- * stored in intel byte order, and the name_len field could never be
- * bigger than 255 chars, it's safe to reclaim the extra byte for the
- * file_type field.
- */
-struct ext3_dir_entry_2 {
-	__le32	inode;			/* Inode number */
-	__le16	rec_len;		/* Directory entry length */
-	__u8	name_len;		/* Name length */
-	__u8	file_type;
-	char	name[EXT3_NAME_LEN];	/* File name */
-};
-
-/*
- * Ext3 directory file types.  Only the low 3 bits are used.  The
- * other bits are reserved for now.
- */
-#define EXT3_FT_UNKNOWN		0
-#define EXT3_FT_REG_FILE	1
-#define EXT3_FT_DIR		2
-#define EXT3_FT_CHRDEV		3
-#define EXT3_FT_BLKDEV		4
-#define EXT3_FT_FIFO		5
-#define EXT3_FT_SOCK		6
-#define EXT3_FT_SYMLINK		7
-
-#define EXT3_FT_MAX		8
-
-/*
- * EXT3_DIR_PAD defines the directory entries boundaries
- *
- * NOTE: It must be a multiple of 4
- */
-#define EXT3_DIR_PAD			4
-#define EXT3_DIR_ROUND			(EXT3_DIR_PAD - 1)
-#define EXT3_DIR_REC_LEN(name_len)	(((name_len) + 8 + EXT3_DIR_ROUND) & \
-					 ~EXT3_DIR_ROUND)
-#define EXT3_MAX_REC_LEN		((1<<16)-1)
-
-/*
- * Tests against MAX_REC_LEN etc were put in place for 64k block
- * sizes; if that is not possible on this arch, we can skip
- * those tests and speed things up.
- */
-static inline unsigned ext3_rec_len_from_disk(__le16 dlen)
-{
-	unsigned len = le16_to_cpu(dlen);
-
-#if (PAGE_CACHE_SIZE >= 65536)
-	if (len == EXT3_MAX_REC_LEN)
-		return 1 << 16;
-#endif
-	return len;
-}
-
-static inline __le16 ext3_rec_len_to_disk(unsigned len)
-{
-#if (PAGE_CACHE_SIZE >= 65536)
-	if (len == (1 << 16))
-		return cpu_to_le16(EXT3_MAX_REC_LEN);
-	else if (len > (1 << 16))
-		BUG();
-#endif
-	return cpu_to_le16(len);
-}
-
-/*
- * Hash Tree Directory indexing
- * (c) Daniel Phillips, 2001
- */
-
-#define is_dx(dir) (EXT3_HAS_COMPAT_FEATURE(dir->i_sb, \
-				      EXT3_FEATURE_COMPAT_DIR_INDEX) && \
-		      (EXT3_I(dir)->i_flags & EXT3_INDEX_FL))
-#define EXT3_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT3_LINK_MAX)
-#define EXT3_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1)
-
-/* Legal values for the dx_root hash_version field: */
-
-#define DX_HASH_LEGACY		0
-#define DX_HASH_HALF_MD4	1
-#define DX_HASH_TEA		2
-#define DX_HASH_LEGACY_UNSIGNED	3
-#define DX_HASH_HALF_MD4_UNSIGNED	4
-#define DX_HASH_TEA_UNSIGNED		5
-
-/* hash info structure used by the directory hash */
-struct dx_hash_info
-{
-	u32		hash;
-	u32		minor_hash;
-	int		hash_version;
-	u32		*seed;
-};
-
-
-/* 32 and 64 bit signed EOF for dx directories */
-#define EXT3_HTREE_EOF_32BIT   ((1UL  << (32 - 1)) - 1)
-#define EXT3_HTREE_EOF_64BIT   ((1ULL << (64 - 1)) - 1)
-
-
-/*
- * Control parameters used by ext3_htree_next_block
- */
-#define HASH_NB_ALWAYS		1
-
-
-/*
- * Describe an inode's exact location on disk and in memory
- */
-struct ext3_iloc
-{
-	struct buffer_head *bh;
-	unsigned long offset;
-	unsigned long block_group;
-};
-
-static inline struct ext3_inode *ext3_raw_inode(struct ext3_iloc *iloc)
-{
-	return (struct ext3_inode *) (iloc->bh->b_data + iloc->offset);
-}
-
-/*
- * This structure is stuffed into the struct file's private_data field
- * for directories.  It is where we put information so that we can do
- * readdir operations in hash tree order.
- */
-struct dir_private_info {
-	struct rb_root	root;
-	struct rb_node	*curr_node;
-	struct fname	*extra_fname;
-	loff_t		last_pos;
-	__u32		curr_hash;
-	__u32		curr_minor_hash;
-	__u32		next_hash;
-};
-
-/* calculate the first block number of the group */
-static inline ext3_fsblk_t
-ext3_group_first_block_no(struct super_block *sb, unsigned long group_no)
-{
-	return group_no * (ext3_fsblk_t)EXT3_BLOCKS_PER_GROUP(sb) +
-		le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block);
-}
-
-/*
- * Special error return code only used by dx_probe() and its callers.
- */
-#define ERR_BAD_DX_DIR	-75000
-
-/*
- * Function prototypes
- */
-
-/*
- * Ok, these declarations are also in <linux/kernel.h> but none of the
- * ext3 source programs needs to include it so they are duplicated here.
- */
-# define NORET_TYPE    /**/
-# define ATTRIB_NORET  __attribute__((noreturn))
-# define NORET_AND     noreturn,
-
-/* balloc.c */
-extern int ext3_bg_has_super(struct super_block *sb, int group);
-extern unsigned long ext3_bg_num_gdb(struct super_block *sb, int group);
-extern ext3_fsblk_t ext3_new_block (handle_t *handle, struct inode *inode,
-			ext3_fsblk_t goal, int *errp);
-extern ext3_fsblk_t ext3_new_blocks (handle_t *handle, struct inode *inode,
-			ext3_fsblk_t goal, unsigned long *count, int *errp);
-extern void ext3_free_blocks (handle_t *handle, struct inode *inode,
-			ext3_fsblk_t block, unsigned long count);
-extern void ext3_free_blocks_sb (handle_t *handle, struct super_block *sb,
-				 ext3_fsblk_t block, unsigned long count,
-				unsigned long *pdquot_freed_blocks);
-extern ext3_fsblk_t ext3_count_free_blocks (struct super_block *);
-extern void ext3_check_blocks_bitmap (struct super_block *);
-extern struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb,
-						    unsigned int block_group,
-						    struct buffer_head ** bh);
-extern int ext3_should_retry_alloc(struct super_block *sb, int *retries);
-extern void ext3_init_block_alloc_info(struct inode *);
-extern void ext3_rsv_window_add(struct super_block *sb, struct ext3_reserve_window_node *rsv);
-extern int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range);
-
-/* dir.c */
-extern int ext3_check_dir_entry(const char *, struct inode *,
-				struct ext3_dir_entry_2 *,
-				struct buffer_head *, unsigned long);
-extern int ext3_htree_store_dirent(struct file *dir_file, __u32 hash,
-				    __u32 minor_hash,
-				    struct ext3_dir_entry_2 *dirent);
-extern void ext3_htree_free_dir_info(struct dir_private_info *p);
-
-/* fsync.c */
-extern int ext3_sync_file(struct file *, loff_t, loff_t, int);
-
-/* hash.c */
-extern int ext3fs_dirhash(const char *name, int len, struct
-			  dx_hash_info *hinfo);
-
-/* ialloc.c */
-extern struct inode * ext3_new_inode (handle_t *, struct inode *,
-				      const struct qstr *, umode_t);
-extern void ext3_free_inode (handle_t *, struct inode *);
-extern struct inode * ext3_orphan_get (struct super_block *, unsigned long);
-extern unsigned long ext3_count_free_inodes (struct super_block *);
-extern unsigned long ext3_count_dirs (struct super_block *);
-extern void ext3_check_inodes_bitmap (struct super_block *);
-extern unsigned long ext3_count_free (struct buffer_head *, unsigned);
-
-
-/* inode.c */
-int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,
-		struct buffer_head *bh, ext3_fsblk_t blocknr);
-struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *);
-struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *);
-int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
-	sector_t iblock, unsigned long maxblocks, struct buffer_head *bh_result,
-	int create);
-
-extern struct inode *ext3_iget(struct super_block *, unsigned long);
-extern int  ext3_write_inode (struct inode *, struct writeback_control *);
-extern int  ext3_setattr (struct dentry *, struct iattr *);
-extern void ext3_evict_inode (struct inode *);
-extern int  ext3_sync_inode (handle_t *, struct inode *);
-extern void ext3_discard_reservation (struct inode *);
-extern void ext3_dirty_inode(struct inode *, int);
-extern int ext3_change_inode_journal_flag(struct inode *, int);
-extern int ext3_get_inode_loc(struct inode *, struct ext3_iloc *);
-extern int ext3_can_truncate(struct inode *inode);
-extern void ext3_truncate(struct inode *inode);
-extern void ext3_set_inode_flags(struct inode *);
-extern void ext3_get_inode_flags(struct ext3_inode_info *);
-extern void ext3_set_aops(struct inode *inode);
-extern int ext3_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
-		       u64 start, u64 len);
-
-/* ioctl.c */
-extern long ext3_ioctl(struct file *, unsigned int, unsigned long);
-extern long ext3_compat_ioctl(struct file *, unsigned int, unsigned long);
-
-/* namei.c */
-extern int ext3_orphan_add(handle_t *, struct inode *);
-extern int ext3_orphan_del(handle_t *, struct inode *);
-extern int ext3_htree_fill_tree(struct file *dir_file, __u32 start_hash,
-				__u32 start_minor_hash, __u32 *next_hash);
-
-/* resize.c */
-extern int ext3_group_add(struct super_block *sb,
-				struct ext3_new_group_data *input);
-extern int ext3_group_extend(struct super_block *sb,
-				struct ext3_super_block *es,
-				ext3_fsblk_t n_blocks_count);
-
-/* super.c */
-extern __printf(3, 4)
-void ext3_error(struct super_block *, const char *, const char *, ...);
-extern void __ext3_std_error (struct super_block *, const char *, int);
-extern __printf(3, 4)
-void ext3_abort(struct super_block *, const char *, const char *, ...);
-extern __printf(3, 4)
-void ext3_warning(struct super_block *, const char *, const char *, ...);
-extern __printf(3, 4)
-void ext3_msg(struct super_block *, const char *, const char *, ...);
-extern void ext3_update_dynamic_rev (struct super_block *sb);
-
-#define ext3_std_error(sb, errno)				\
-do {								\
-	if ((errno))						\
-		__ext3_std_error((sb), __func__, (errno));	\
-} while (0)
-
-/*
- * Inodes and files operations
- */
-
-/* dir.c */
-extern const struct file_operations ext3_dir_operations;
-
-/* file.c */
-extern const struct inode_operations ext3_file_inode_operations;
-extern const struct file_operations ext3_file_operations;
-
-/* namei.c */
-extern const struct inode_operations ext3_dir_inode_operations;
-extern const struct inode_operations ext3_special_inode_operations;
-
-/* symlink.c */
-extern const struct inode_operations ext3_symlink_inode_operations;
-extern const struct inode_operations ext3_fast_symlink_inode_operations;
-
-#define EXT3_JOURNAL(inode)	(EXT3_SB((inode)->i_sb)->s_journal)
-
-/* Define the number of blocks we need to account to a transaction to
- * modify one block of data.
- *
- * We may have to touch one inode, one bitmap buffer, up to three
- * indirection blocks, the group and superblock summaries, and the data
- * block to complete the transaction.  */
-
-#define EXT3_SINGLEDATA_TRANS_BLOCKS	8U
-
-/* Extended attribute operations touch at most two data buffers,
- * two bitmap buffers, and two group summaries, in addition to the inode
- * and the superblock, which are already accounted for. */
-
-#define EXT3_XATTR_TRANS_BLOCKS		6U
-
-/* Define the minimum size for a transaction which modifies data.  This
- * needs to take into account the fact that we may end up modifying two
- * quota files too (one for the group, one for the user quota).  The
- * superblock only gets updated once, of course, so don't bother
- * counting that again for the quota updates. */
-
-#define EXT3_DATA_TRANS_BLOCKS(sb)	(EXT3_SINGLEDATA_TRANS_BLOCKS + \
-					 EXT3_XATTR_TRANS_BLOCKS - 2 + \
-					 EXT3_MAXQUOTAS_TRANS_BLOCKS(sb))
-
-/* Delete operations potentially hit one directory's namespace plus an
- * entire inode, plus arbitrary amounts of bitmap/indirection data.  Be
- * generous.  We can grow the delete transaction later if necessary. */
-
-#define EXT3_DELETE_TRANS_BLOCKS(sb)   (EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) + 64)
-
-/* Define an arbitrary limit for the amount of data we will anticipate
- * writing to any given transaction.  For unbounded transactions such as
- * write(2) and truncate(2) we can write more than this, but we always
- * start off at the maximum transaction size and grow the transaction
- * optimistically as we go. */
-
-#define EXT3_MAX_TRANS_DATA		64U
-
-/* We break up a large truncate or write transaction once the handle's
- * buffer credits gets this low, we need either to extend the
- * transaction or to start a new one.  Reserve enough space here for
- * inode, bitmap, superblock, group and indirection updates for at least
- * one block, plus two quota updates.  Quota allocations are not
- * needed. */
-
-#define EXT3_RESERVE_TRANS_BLOCKS	12U
-
-#define EXT3_INDEX_EXTRA_TRANS_BLOCKS	8
-
-#ifdef CONFIG_QUOTA
-/* Amount of blocks needed for quota update - we know that the structure was
- * allocated so we need to update only inode+data */
-#define EXT3_QUOTA_TRANS_BLOCKS(sb) (test_opt(sb, QUOTA) ? 2 : 0)
-/* Amount of blocks needed for quota insert/delete - we do some block writes
- * but inode, sb and group updates are done only once */
-#define EXT3_QUOTA_INIT_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_INIT_ALLOC*\
-		(EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_INIT_REWRITE) : 0)
-#define EXT3_QUOTA_DEL_BLOCKS(sb) (test_opt(sb, QUOTA) ? (DQUOT_DEL_ALLOC*\
-		(EXT3_SINGLEDATA_TRANS_BLOCKS-3)+3+DQUOT_DEL_REWRITE) : 0)
-#else
-#define EXT3_QUOTA_TRANS_BLOCKS(sb) 0
-#define EXT3_QUOTA_INIT_BLOCKS(sb) 0
-#define EXT3_QUOTA_DEL_BLOCKS(sb) 0
-#endif
-#define EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) (EXT3_MAXQUOTAS*EXT3_QUOTA_TRANS_BLOCKS(sb))
-#define EXT3_MAXQUOTAS_INIT_BLOCKS(sb) (EXT3_MAXQUOTAS*EXT3_QUOTA_INIT_BLOCKS(sb))
-#define EXT3_MAXQUOTAS_DEL_BLOCKS(sb) (EXT3_MAXQUOTAS*EXT3_QUOTA_DEL_BLOCKS(sb))
-
-int
-ext3_mark_iloc_dirty(handle_t *handle,
-		     struct inode *inode,
-		     struct ext3_iloc *iloc);
-
-/*
- * On success, We end up with an outstanding reference count against
- * iloc->bh.  This _must_ be cleaned up later.
- */
-
-int ext3_reserve_inode_write(handle_t *handle, struct inode *inode,
-			struct ext3_iloc *iloc);
-
-int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode);
-
-/*
- * Wrapper functions with which ext3 calls into JBD.  The intent here is
- * to allow these to be turned into appropriate stubs so ext3 can control
- * ext2 filesystems, so ext2+ext3 systems only nee one fs.  This work hasn't
- * been done yet.
- */
-
-static inline void ext3_journal_release_buffer(handle_t *handle,
-						struct buffer_head *bh)
-{
-	journal_release_buffer(handle, bh);
-}
-
-void ext3_journal_abort_handle(const char *caller, const char *err_fn,
-		struct buffer_head *bh, handle_t *handle, int err);
-
-int __ext3_journal_get_undo_access(const char *where, handle_t *handle,
-				struct buffer_head *bh);
-
-int __ext3_journal_get_write_access(const char *where, handle_t *handle,
-				struct buffer_head *bh);
-
-int __ext3_journal_forget(const char *where, handle_t *handle,
-				struct buffer_head *bh);
-
-int __ext3_journal_revoke(const char *where, handle_t *handle,
-				unsigned long blocknr, struct buffer_head *bh);
-
-int __ext3_journal_get_create_access(const char *where,
-				handle_t *handle, struct buffer_head *bh);
-
-int __ext3_journal_dirty_metadata(const char *where,
-				handle_t *handle, struct buffer_head *bh);
-
-#define ext3_journal_get_undo_access(handle, bh) \
-	__ext3_journal_get_undo_access(__func__, (handle), (bh))
-#define ext3_journal_get_write_access(handle, bh) \
-	__ext3_journal_get_write_access(__func__, (handle), (bh))
-#define ext3_journal_revoke(handle, blocknr, bh) \
-	__ext3_journal_revoke(__func__, (handle), (blocknr), (bh))
-#define ext3_journal_get_create_access(handle, bh) \
-	__ext3_journal_get_create_access(__func__, (handle), (bh))
-#define ext3_journal_dirty_metadata(handle, bh) \
-	__ext3_journal_dirty_metadata(__func__, (handle), (bh))
-#define ext3_journal_forget(handle, bh) \
-	__ext3_journal_forget(__func__, (handle), (bh))
-
-int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh);
-
-handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks);
-int __ext3_journal_stop(const char *where, handle_t *handle);
-
-static inline handle_t *ext3_journal_start(struct inode *inode, int nblocks)
-{
-	return ext3_journal_start_sb(inode->i_sb, nblocks);
-}
-
-#define ext3_journal_stop(handle) \
-	__ext3_journal_stop(__func__, (handle))
-
-static inline handle_t *ext3_journal_current_handle(void)
-{
-	return journal_current_handle();
-}
-
-static inline int ext3_journal_extend(handle_t *handle, int nblocks)
-{
-	return journal_extend(handle, nblocks);
-}
-
-static inline int ext3_journal_restart(handle_t *handle, int nblocks)
-{
-	return journal_restart(handle, nblocks);
-}
-
-static inline int ext3_journal_blocks_per_page(struct inode *inode)
-{
-	return journal_blocks_per_page(inode);
-}
-
-static inline int ext3_journal_force_commit(journal_t *journal)
-{
-	return journal_force_commit(journal);
-}
-
-/* super.c */
-int ext3_force_commit(struct super_block *sb);
-
-static inline int ext3_should_journal_data(struct inode *inode)
-{
-	if (!S_ISREG(inode->i_mode))
-		return 1;
-	if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
-		return 1;
-	if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
-		return 1;
-	return 0;
-}
-
-static inline int ext3_should_order_data(struct inode *inode)
-{
-	if (!S_ISREG(inode->i_mode))
-		return 0;
-	if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
-		return 0;
-	if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
-		return 1;
-	return 0;
-}
-
-static inline int ext3_should_writeback_data(struct inode *inode)
-{
-	if (!S_ISREG(inode->i_mode))
-		return 0;
-	if (EXT3_I(inode)->i_flags & EXT3_JOURNAL_DATA_FL)
-		return 0;
-	if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
-		return 1;
-	return 0;
-}
-
-#include <trace/events/ext3.h>
diff --git a/fs/ext3/ext3_jbd.c b/fs/ext3/ext3_jbd.c
deleted file mode 100644
index 785a3261a..000000000
--- a/fs/ext3/ext3_jbd.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Interface between ext3 and JBD
- */
-
-#include "ext3.h"
-
-int __ext3_journal_get_undo_access(const char *where, handle_t *handle,
-				struct buffer_head *bh)
-{
-	int err = journal_get_undo_access(handle, bh);
-	if (err)
-		ext3_journal_abort_handle(where, __func__, bh, handle,err);
-	return err;
-}
-
-int __ext3_journal_get_write_access(const char *where, handle_t *handle,
-				struct buffer_head *bh)
-{
-	int err = journal_get_write_access(handle, bh);
-	if (err)
-		ext3_journal_abort_handle(where, __func__, bh, handle,err);
-	return err;
-}
-
-int __ext3_journal_forget(const char *where, handle_t *handle,
-				struct buffer_head *bh)
-{
-	int err = journal_forget(handle, bh);
-	if (err)
-		ext3_journal_abort_handle(where, __func__, bh, handle,err);
-	return err;
-}
-
-int __ext3_journal_revoke(const char *where, handle_t *handle,
-				unsigned long blocknr, struct buffer_head *bh)
-{
-	int err = journal_revoke(handle, blocknr, bh);
-	if (err)
-		ext3_journal_abort_handle(where, __func__, bh, handle,err);
-	return err;
-}
-
-int __ext3_journal_get_create_access(const char *where,
-				handle_t *handle, struct buffer_head *bh)
-{
-	int err = journal_get_create_access(handle, bh);
-	if (err)
-		ext3_journal_abort_handle(where, __func__, bh, handle,err);
-	return err;
-}
-
-int __ext3_journal_dirty_metadata(const char *where,
-				handle_t *handle, struct buffer_head *bh)
-{
-	int err = journal_dirty_metadata(handle, bh);
-	if (err)
-		ext3_journal_abort_handle(where, __func__, bh, handle,err);
-	return err;
-}
diff --git a/fs/ext3/file.c b/fs/ext3/file.c
deleted file mode 100644
index 3b8f650de..000000000
--- a/fs/ext3/file.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- *  linux/fs/ext3/file.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- *  from
- *
- *  linux/fs/minix/file.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *
- *  ext3 fs regular file handling primitives
- *
- *  64-bit file support on 64-bit platforms by Jakub Jelinek
- *	(jj@sunsite.ms.mff.cuni.cz)
- */
-
-#include <linux/quotaops.h>
-#include "ext3.h"
-#include "xattr.h"
-#include "acl.h"
-
-/*
- * Called when an inode is released. Note that this is different
- * from ext3_file_open: open gets called at every open, but release
- * gets called only when /all/ the files are closed.
- */
-static int ext3_release_file (struct inode * inode, struct file * filp)
-{
-	if (ext3_test_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE)) {
-		filemap_flush(inode->i_mapping);
-		ext3_clear_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE);
-	}
-	/* if we are the last writer on the inode, drop the block reservation */
-	if ((filp->f_mode & FMODE_WRITE) &&
-			(atomic_read(&inode->i_writecount) == 1))
-	{
-		mutex_lock(&EXT3_I(inode)->truncate_mutex);
-		ext3_discard_reservation(inode);
-		mutex_unlock(&EXT3_I(inode)->truncate_mutex);
-	}
-	if (is_dx(inode) && filp->private_data)
-		ext3_htree_free_dir_info(filp->private_data);
-
-	return 0;
-}
-
-const struct file_operations ext3_file_operations = {
-	.llseek		= generic_file_llseek,
-	.read_iter	= generic_file_read_iter,
-	.write_iter	= generic_file_write_iter,
-	.unlocked_ioctl	= ext3_ioctl,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl	= ext3_compat_ioctl,
-#endif
-	.mmap		= generic_file_mmap,
-	.open		= dquot_file_open,
-	.release	= ext3_release_file,
-	.fsync		= ext3_sync_file,
-	.splice_read	= generic_file_splice_read,
-	.splice_write	= iter_file_splice_write,
-};
-
-const struct inode_operations ext3_file_inode_operations = {
-	.setattr	= ext3_setattr,
-#ifdef CONFIG_EXT3_FS_XATTR
-	.setxattr	= generic_setxattr,
-	.getxattr	= generic_getxattr,
-	.listxattr	= ext3_listxattr,
-	.removexattr	= generic_removexattr,
-#endif
-	.get_acl	= ext3_get_acl,
-	.set_acl	= ext3_set_acl,
-	.fiemap		= ext3_fiemap,
-};
-
diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c
deleted file mode 100644
index 1cb9c7e10..000000000
--- a/fs/ext3/fsync.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- *  linux/fs/ext3/fsync.c
- *
- *  Copyright (C) 1993  Stephen Tweedie (sct@redhat.com)
- *  from
- *  Copyright (C) 1992  Remy Card (card@masi.ibp.fr)
- *                      Laboratoire MASI - Institut Blaise Pascal
- *                      Universite Pierre et Marie Curie (Paris VI)
- *  from
- *  linux/fs/minix/truncate.c   Copyright (C) 1991, 1992  Linus Torvalds
- *
- *  ext3fs fsync primitive
- *
- *  Big-endian to little-endian byte-swapping/bitmaps by
- *        David S. Miller (davem@caip.rutgers.edu), 1995
- *
- *  Removed unnecessary code duplication for little endian machines
- *  and excessive __inline__s.
- *        Andi Kleen, 1997
- *
- * Major simplications and cleanup - we only need to do the metadata, because
- * we can depend on generic_block_fdatasync() to sync the data blocks.
- */
-
-#include <linux/blkdev.h>
-#include <linux/writeback.h>
-#include "ext3.h"
-
-/*
- * akpm: A new design for ext3_sync_file().
- *
- * This is only called from sys_fsync(), sys_fdatasync() and sys_msync().
- * There cannot be a transaction open by this task.
- * Another task could have dirtied this inode.  Its data can be in any
- * state in the journalling system.
- *
- * What we do is just kick off a commit and wait on it.  This will snapshot the
- * inode to disk.
- */
-
-int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
-{
-	struct inode *inode = file->f_mapping->host;
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	journal_t *journal = EXT3_SB(inode->i_sb)->s_journal;
-	int ret, needs_barrier = 0;
-	tid_t commit_tid;
-
-	trace_ext3_sync_file_enter(file, datasync);
-
-	if (inode->i_sb->s_flags & MS_RDONLY) {
-		/* Make sure that we read updated state */
-		smp_rmb();
-		if (EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ERROR_FS)
-			return -EROFS;
-		return 0;
-	}
-	ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
-	if (ret)
-		goto out;
-
-	J_ASSERT(ext3_journal_current_handle() == NULL);
-
-	/*
-	 * data=writeback,ordered:
-	 *  The caller's filemap_fdatawrite()/wait will sync the data.
-	 *  Metadata is in the journal, we wait for a proper transaction
-	 *  to commit here.
-	 *
-	 * data=journal:
-	 *  filemap_fdatawrite won't do anything (the buffers are clean).
-	 *  ext3_force_commit will write the file data into the journal and
-	 *  will wait on that.
-	 *  filemap_fdatawait() will encounter a ton of newly-dirtied pages
-	 *  (they were dirtied by commit).  But that's OK - the blocks are
-	 *  safe in-journal, which is all fsync() needs to ensure.
-	 */
-	if (ext3_should_journal_data(inode)) {
-		ret = ext3_force_commit(inode->i_sb);
-		goto out;
-	}
-
-	if (datasync)
-		commit_tid = atomic_read(&ei->i_datasync_tid);
-	else
-		commit_tid = atomic_read(&ei->i_sync_tid);
-
-	if (test_opt(inode->i_sb, BARRIER) &&
-	    !journal_trans_will_send_data_barrier(journal, commit_tid))
-		needs_barrier = 1;
-	log_start_commit(journal, commit_tid);
-	ret = log_wait_commit(journal, commit_tid);
-
-	/*
-	 * In case we didn't commit a transaction, we have to flush
-	 * disk caches manually so that data really is on persistent
-	 * storage
-	 */
-	if (needs_barrier) {
-		int err;
-
-		err = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
-		if (!ret)
-			ret = err;
-	}
-out:
-	trace_ext3_sync_file_exit(inode, ret);
-	return ret;
-}
diff --git a/fs/ext3/hash.c b/fs/ext3/hash.c
deleted file mode 100644
index ede315cdf..000000000
--- a/fs/ext3/hash.c
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
- *  linux/fs/ext3/hash.c
- *
- * Copyright (C) 2002 by Theodore Ts'o
- *
- * This file is released under the GPL v2.
- *
- * This file may be redistributed under the terms of the GNU Public
- * License.
- */
-
-#include "ext3.h"
-#include <linux/cryptohash.h>
-
-#define DELTA 0x9E3779B9
-
-static void TEA_transform(__u32 buf[4], __u32 const in[])
-{
-	__u32	sum = 0;
-	__u32	b0 = buf[0], b1 = buf[1];
-	__u32	a = in[0], b = in[1], c = in[2], d = in[3];
-	int	n = 16;
-
-	do {
-		sum += DELTA;
-		b0 += ((b1 << 4)+a) ^ (b1+sum) ^ ((b1 >> 5)+b);
-		b1 += ((b0 << 4)+c) ^ (b0+sum) ^ ((b0 >> 5)+d);
-	} while(--n);
-
-	buf[0] += b0;
-	buf[1] += b1;
-}
-
-
-/* The old legacy hash */
-static __u32 dx_hack_hash_unsigned(const char *name, int len)
-{
-	__u32 hash, hash0 = 0x12a3fe2d, hash1 = 0x37abe8f9;
-	const unsigned char *ucp = (const unsigned char *) name;
-
-	while (len--) {
-		hash = hash1 + (hash0 ^ (((int) *ucp++) * 7152373));
-
-		if (hash & 0x80000000)
-			hash -= 0x7fffffff;
-		hash1 = hash0;
-		hash0 = hash;
-	}
-	return hash0 << 1;
-}
-
-static __u32 dx_hack_hash_signed(const char *name, int len)
-{
-	__u32 hash, hash0 = 0x12a3fe2d, hash1 = 0x37abe8f9;
-	const signed char *scp = (const signed char *) name;
-
-	while (len--) {
-		hash = hash1 + (hash0 ^ (((int) *scp++) * 7152373));
-
-		if (hash & 0x80000000)
-			hash -= 0x7fffffff;
-		hash1 = hash0;
-		hash0 = hash;
-	}
-	return hash0 << 1;
-}
-
-static void str2hashbuf_signed(const char *msg, int len, __u32 *buf, int num)
-{
-	__u32	pad, val;
-	int	i;
-	const signed char *scp = (const signed char *) msg;
-
-	pad = (__u32)len | ((__u32)len << 8);
-	pad |= pad << 16;
-
-	val = pad;
-	if (len > num*4)
-		len = num * 4;
-	for (i = 0; i < len; i++) {
-		if ((i % 4) == 0)
-			val = pad;
-		val = ((int) scp[i]) + (val << 8);
-		if ((i % 4) == 3) {
-			*buf++ = val;
-			val = pad;
-			num--;
-		}
-	}
-	if (--num >= 0)
-		*buf++ = val;
-	while (--num >= 0)
-		*buf++ = pad;
-}
-
-static void str2hashbuf_unsigned(const char *msg, int len, __u32 *buf, int num)
-{
-	__u32	pad, val;
-	int	i;
-	const unsigned char *ucp = (const unsigned char *) msg;
-
-	pad = (__u32)len | ((__u32)len << 8);
-	pad |= pad << 16;
-
-	val = pad;
-	if (len > num*4)
-		len = num * 4;
-	for (i=0; i < len; i++) {
-		if ((i % 4) == 0)
-			val = pad;
-		val = ((int) ucp[i]) + (val << 8);
-		if ((i % 4) == 3) {
-			*buf++ = val;
-			val = pad;
-			num--;
-		}
-	}
-	if (--num >= 0)
-		*buf++ = val;
-	while (--num >= 0)
-		*buf++ = pad;
-}
-
-/*
- * Returns the hash of a filename.  If len is 0 and name is NULL, then
- * this function can be used to test whether or not a hash version is
- * supported.
- *
- * The seed is an 4 longword (32 bits) "secret" which can be used to
- * uniquify a hash.  If the seed is all zero's, then some default seed
- * may be used.
- *
- * A particular hash version specifies whether or not the seed is
- * represented, and whether or not the returned hash is 32 bits or 64
- * bits.  32 bit hashes will return 0 for the minor hash.
- */
-int ext3fs_dirhash(const char *name, int len, struct dx_hash_info *hinfo)
-{
-	__u32	hash;
-	__u32	minor_hash = 0;
-	const char	*p;
-	int		i;
-	__u32		in[8], buf[4];
-	void		(*str2hashbuf)(const char *, int, __u32 *, int) =
-				str2hashbuf_signed;
-
-	/* Initialize the default seed for the hash checksum functions */
-	buf[0] = 0x67452301;
-	buf[1] = 0xefcdab89;
-	buf[2] = 0x98badcfe;
-	buf[3] = 0x10325476;
-
-	/* Check to see if the seed is all zero's */
-	if (hinfo->seed) {
-		for (i=0; i < 4; i++) {
-			if (hinfo->seed[i])
-				break;
-		}
-		if (i < 4)
-			memcpy(buf, hinfo->seed, sizeof(buf));
-	}
-
-	switch (hinfo->hash_version) {
-	case DX_HASH_LEGACY_UNSIGNED:
-		hash = dx_hack_hash_unsigned(name, len);
-		break;
-	case DX_HASH_LEGACY:
-		hash = dx_hack_hash_signed(name, len);
-		break;
-	case DX_HASH_HALF_MD4_UNSIGNED:
-		str2hashbuf = str2hashbuf_unsigned;
-	case DX_HASH_HALF_MD4:
-		p = name;
-		while (len > 0) {
-			(*str2hashbuf)(p, len, in, 8);
-			half_md4_transform(buf, in);
-			len -= 32;
-			p += 32;
-		}
-		minor_hash = buf[2];
-		hash = buf[1];
-		break;
-	case DX_HASH_TEA_UNSIGNED:
-		str2hashbuf = str2hashbuf_unsigned;
-	case DX_HASH_TEA:
-		p = name;
-		while (len > 0) {
-			(*str2hashbuf)(p, len, in, 4);
-			TEA_transform(buf, in);
-			len -= 16;
-			p += 16;
-		}
-		hash = buf[0];
-		minor_hash = buf[1];
-		break;
-	default:
-		hinfo->hash = 0;
-		return -1;
-	}
-	hash = hash & ~1;
-	if (hash == (EXT3_HTREE_EOF_32BIT << 1))
-		hash = (EXT3_HTREE_EOF_32BIT - 1) << 1;
-	hinfo->hash = hash;
-	hinfo->minor_hash = minor_hash;
-	return 0;
-}
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
deleted file mode 100644
index 3ad242e58..000000000
--- a/fs/ext3/ialloc.c
+++ /dev/null
@@ -1,706 +0,0 @@
-/*
- *  linux/fs/ext3/ialloc.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- *  BSD ufs-inspired inode and directory allocation by
- *  Stephen Tweedie (sct@redhat.com), 1993
- *  Big-endian to little-endian byte-swapping/bitmaps by
- *        David S. Miller (davem@caip.rutgers.edu), 1995
- */
-
-#include <linux/quotaops.h>
-#include <linux/random.h>
-
-#include "ext3.h"
-#include "xattr.h"
-#include "acl.h"
-
-/*
- * ialloc.c contains the inodes allocation and deallocation routines
- */
-
-/*
- * The free inodes are managed by bitmaps.  A file system contains several
- * blocks groups.  Each group contains 1 bitmap block for blocks, 1 bitmap
- * block for inodes, N blocks for the inode table and data blocks.
- *
- * The file system contains group descriptors which are located after the
- * super block.  Each descriptor contains the number of the bitmap block and
- * the free blocks count in the block.
- */
-
-
-/*
- * Read the inode allocation bitmap for a given block_group, reading
- * into the specified slot in the superblock's bitmap cache.
- *
- * Return buffer_head of bitmap on success or NULL.
- */
-static struct buffer_head *
-read_inode_bitmap(struct super_block * sb, unsigned long block_group)
-{
-	struct ext3_group_desc *desc;
-	struct buffer_head *bh = NULL;
-
-	desc = ext3_get_group_desc(sb, block_group, NULL);
-	if (!desc)
-		goto error_out;
-
-	bh = sb_bread(sb, le32_to_cpu(desc->bg_inode_bitmap));
-	if (!bh)
-		ext3_error(sb, "read_inode_bitmap",
-			    "Cannot read inode bitmap - "
-			    "block_group = %lu, inode_bitmap = %u",
-			    block_group, le32_to_cpu(desc->bg_inode_bitmap));
-error_out:
-	return bh;
-}
-
-/*
- * NOTE! When we get the inode, we're the only people
- * that have access to it, and as such there are no
- * race conditions we have to worry about. The inode
- * is not on the hash-lists, and it cannot be reached
- * through the filesystem because the directory entry
- * has been deleted earlier.
- *
- * HOWEVER: we must make sure that we get no aliases,
- * which means that we have to call "clear_inode()"
- * _before_ we mark the inode not in use in the inode
- * bitmaps. Otherwise a newly created file might use
- * the same inode number (not actually the same pointer
- * though), and then we'd have two inodes sharing the
- * same inode number and space on the harddisk.
- */
-void ext3_free_inode (handle_t *handle, struct inode * inode)
-{
-	struct super_block * sb = inode->i_sb;
-	int is_directory;
-	unsigned long ino;
-	struct buffer_head *bitmap_bh = NULL;
-	struct buffer_head *bh2;
-	unsigned long block_group;
-	unsigned long bit;
-	struct ext3_group_desc * gdp;
-	struct ext3_super_block * es;
-	struct ext3_sb_info *sbi;
-	int fatal = 0, err;
-
-	if (atomic_read(&inode->i_count) > 1) {
-		printk ("ext3_free_inode: inode has count=%d\n",
-					atomic_read(&inode->i_count));
-		return;
-	}
-	if (inode->i_nlink) {
-		printk ("ext3_free_inode: inode has nlink=%d\n",
-			inode->i_nlink);
-		return;
-	}
-	if (!sb) {
-		printk("ext3_free_inode: inode on nonexistent device\n");
-		return;
-	}
-	sbi = EXT3_SB(sb);
-
-	ino = inode->i_ino;
-	ext3_debug ("freeing inode %lu\n", ino);
-	trace_ext3_free_inode(inode);
-
-	is_directory = S_ISDIR(inode->i_mode);
-
-	es = EXT3_SB(sb)->s_es;
-	if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
-		ext3_error (sb, "ext3_free_inode",
-			    "reserved or nonexistent inode %lu", ino);
-		goto error_return;
-	}
-	block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
-	bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
-	bitmap_bh = read_inode_bitmap(sb, block_group);
-	if (!bitmap_bh)
-		goto error_return;
-
-	BUFFER_TRACE(bitmap_bh, "get_write_access");
-	fatal = ext3_journal_get_write_access(handle, bitmap_bh);
-	if (fatal)
-		goto error_return;
-
-	/* Ok, now we can actually update the inode bitmaps.. */
-	if (!ext3_clear_bit_atomic(sb_bgl_lock(sbi, block_group),
-					bit, bitmap_bh->b_data))
-		ext3_error (sb, "ext3_free_inode",
-			      "bit already cleared for inode %lu", ino);
-	else {
-		gdp = ext3_get_group_desc (sb, block_group, &bh2);
-
-		BUFFER_TRACE(bh2, "get_write_access");
-		fatal = ext3_journal_get_write_access(handle, bh2);
-		if (fatal) goto error_return;
-
-		if (gdp) {
-			spin_lock(sb_bgl_lock(sbi, block_group));
-			le16_add_cpu(&gdp->bg_free_inodes_count, 1);
-			if (is_directory)
-				le16_add_cpu(&gdp->bg_used_dirs_count, -1);
-			spin_unlock(sb_bgl_lock(sbi, block_group));
-			percpu_counter_inc(&sbi->s_freeinodes_counter);
-			if (is_directory)
-				percpu_counter_dec(&sbi->s_dirs_counter);
-
-		}
-		BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
-		err = ext3_journal_dirty_metadata(handle, bh2);
-		if (!fatal) fatal = err;
-	}
-	BUFFER_TRACE(bitmap_bh, "call ext3_journal_dirty_metadata");
-	err = ext3_journal_dirty_metadata(handle, bitmap_bh);
-	if (!fatal)
-		fatal = err;
-
-error_return:
-	brelse(bitmap_bh);
-	ext3_std_error(sb, fatal);
-}
-
-/*
- * Orlov's allocator for directories.
- *
- * We always try to spread first-level directories.
- *
- * If there are blockgroups with both free inodes and free blocks counts
- * not worse than average we return one with smallest directory count.
- * Otherwise we simply return a random group.
- *
- * For the rest rules look so:
- *
- * It's OK to put directory into a group unless
- * it has too many directories already (max_dirs) or
- * it has too few free inodes left (min_inodes) or
- * it has too few free blocks left (min_blocks).
- * Parent's group is preferred, if it doesn't satisfy these
- * conditions we search cyclically through the rest. If none
- * of the groups look good we just look for a group with more
- * free inodes than average (starting at parent's group).
- *
- * Debt is incremented each time we allocate a directory and decremented
- * when we allocate an inode, within 0--255.
- */
-
-static int find_group_orlov(struct super_block *sb, struct inode *parent)
-{
-	int parent_group = EXT3_I(parent)->i_block_group;
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	int ngroups = sbi->s_groups_count;
-	int inodes_per_group = EXT3_INODES_PER_GROUP(sb);
-	unsigned int freei, avefreei;
-	ext3_fsblk_t freeb, avefreeb;
-	unsigned int ndirs;
-	int max_dirs, min_inodes;
-	ext3_grpblk_t min_blocks;
-	int group = -1, i;
-	struct ext3_group_desc *desc;
-
-	freei = percpu_counter_read_positive(&sbi->s_freeinodes_counter);
-	avefreei = freei / ngroups;
-	freeb = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
-	avefreeb = freeb / ngroups;
-	ndirs = percpu_counter_read_positive(&sbi->s_dirs_counter);
-
-	if ((parent == d_inode(sb->s_root)) ||
-	    (EXT3_I(parent)->i_flags & EXT3_TOPDIR_FL)) {
-		int best_ndir = inodes_per_group;
-		int best_group = -1;
-
-		group = prandom_u32();
-		parent_group = (unsigned)group % ngroups;
-		for (i = 0; i < ngroups; i++) {
-			group = (parent_group + i) % ngroups;
-			desc = ext3_get_group_desc (sb, group, NULL);
-			if (!desc || !desc->bg_free_inodes_count)
-				continue;
-			if (le16_to_cpu(desc->bg_used_dirs_count) >= best_ndir)
-				continue;
-			if (le16_to_cpu(desc->bg_free_inodes_count) < avefreei)
-				continue;
-			if (le16_to_cpu(desc->bg_free_blocks_count) < avefreeb)
-				continue;
-			best_group = group;
-			best_ndir = le16_to_cpu(desc->bg_used_dirs_count);
-		}
-		if (best_group >= 0)
-			return best_group;
-		goto fallback;
-	}
-
-	max_dirs = ndirs / ngroups + inodes_per_group / 16;
-	min_inodes = avefreei - inodes_per_group / 4;
-	min_blocks = avefreeb - EXT3_BLOCKS_PER_GROUP(sb) / 4;
-
-	for (i = 0; i < ngroups; i++) {
-		group = (parent_group + i) % ngroups;
-		desc = ext3_get_group_desc (sb, group, NULL);
-		if (!desc || !desc->bg_free_inodes_count)
-			continue;
-		if (le16_to_cpu(desc->bg_used_dirs_count) >= max_dirs)
-			continue;
-		if (le16_to_cpu(desc->bg_free_inodes_count) < min_inodes)
-			continue;
-		if (le16_to_cpu(desc->bg_free_blocks_count) < min_blocks)
-			continue;
-		return group;
-	}
-
-fallback:
-	for (i = 0; i < ngroups; i++) {
-		group = (parent_group + i) % ngroups;
-		desc = ext3_get_group_desc (sb, group, NULL);
-		if (!desc || !desc->bg_free_inodes_count)
-			continue;
-		if (le16_to_cpu(desc->bg_free_inodes_count) >= avefreei)
-			return group;
-	}
-
-	if (avefreei) {
-		/*
-		 * The free-inodes counter is approximate, and for really small
-		 * filesystems the above test can fail to find any blockgroups
-		 */
-		avefreei = 0;
-		goto fallback;
-	}
-
-	return -1;
-}
-
-static int find_group_other(struct super_block *sb, struct inode *parent)
-{
-	int parent_group = EXT3_I(parent)->i_block_group;
-	int ngroups = EXT3_SB(sb)->s_groups_count;
-	struct ext3_group_desc *desc;
-	int group, i;
-
-	/*
-	 * Try to place the inode in its parent directory
-	 */
-	group = parent_group;
-	desc = ext3_get_group_desc (sb, group, NULL);
-	if (desc && le16_to_cpu(desc->bg_free_inodes_count) &&
-			le16_to_cpu(desc->bg_free_blocks_count))
-		return group;
-
-	/*
-	 * We're going to place this inode in a different blockgroup from its
-	 * parent.  We want to cause files in a common directory to all land in
-	 * the same blockgroup.  But we want files which are in a different
-	 * directory which shares a blockgroup with our parent to land in a
-	 * different blockgroup.
-	 *
-	 * So add our directory's i_ino into the starting point for the hash.
-	 */
-	group = (group + parent->i_ino) % ngroups;
-
-	/*
-	 * Use a quadratic hash to find a group with a free inode and some free
-	 * blocks.
-	 */
-	for (i = 1; i < ngroups; i <<= 1) {
-		group += i;
-		if (group >= ngroups)
-			group -= ngroups;
-		desc = ext3_get_group_desc (sb, group, NULL);
-		if (desc && le16_to_cpu(desc->bg_free_inodes_count) &&
-				le16_to_cpu(desc->bg_free_blocks_count))
-			return group;
-	}
-
-	/*
-	 * That failed: try linear search for a free inode, even if that group
-	 * has no free blocks.
-	 */
-	group = parent_group;
-	for (i = 0; i < ngroups; i++) {
-		if (++group >= ngroups)
-			group = 0;
-		desc = ext3_get_group_desc (sb, group, NULL);
-		if (desc && le16_to_cpu(desc->bg_free_inodes_count))
-			return group;
-	}
-
-	return -1;
-}
-
-/*
- * There are two policies for allocating an inode.  If the new inode is
- * a directory, then a forward search is made for a block group with both
- * free space and a low directory-to-inode ratio; if that fails, then of
- * the groups with above-average free space, that group with the fewest
- * directories already is chosen.
- *
- * For other inodes, search forward from the parent directory's block
- * group to find a free inode.
- */
-struct inode *ext3_new_inode(handle_t *handle, struct inode * dir,
-			     const struct qstr *qstr, umode_t mode)
-{
-	struct super_block *sb;
-	struct buffer_head *bitmap_bh = NULL;
-	struct buffer_head *bh2;
-	int group;
-	unsigned long ino = 0;
-	struct inode * inode;
-	struct ext3_group_desc * gdp = NULL;
-	struct ext3_super_block * es;
-	struct ext3_inode_info *ei;
-	struct ext3_sb_info *sbi;
-	int err = 0;
-	struct inode *ret;
-	int i;
-
-	/* Cannot create files in a deleted directory */
-	if (!dir || !dir->i_nlink)
-		return ERR_PTR(-EPERM);
-
-	sb = dir->i_sb;
-	trace_ext3_request_inode(dir, mode);
-	inode = new_inode(sb);
-	if (!inode)
-		return ERR_PTR(-ENOMEM);
-	ei = EXT3_I(inode);
-
-	sbi = EXT3_SB(sb);
-	es = sbi->s_es;
-	if (S_ISDIR(mode))
-		group = find_group_orlov(sb, dir);
-	else
-		group = find_group_other(sb, dir);
-
-	err = -ENOSPC;
-	if (group == -1)
-		goto out;
-
-	for (i = 0; i < sbi->s_groups_count; i++) {
-		err = -EIO;
-
-		gdp = ext3_get_group_desc(sb, group, &bh2);
-		if (!gdp)
-			goto fail;
-
-		brelse(bitmap_bh);
-		bitmap_bh = read_inode_bitmap(sb, group);
-		if (!bitmap_bh)
-			goto fail;
-
-		ino = 0;
-
-repeat_in_this_group:
-		ino = ext3_find_next_zero_bit((unsigned long *)
-				bitmap_bh->b_data, EXT3_INODES_PER_GROUP(sb), ino);
-		if (ino < EXT3_INODES_PER_GROUP(sb)) {
-
-			BUFFER_TRACE(bitmap_bh, "get_write_access");
-			err = ext3_journal_get_write_access(handle, bitmap_bh);
-			if (err)
-				goto fail;
-
-			if (!ext3_set_bit_atomic(sb_bgl_lock(sbi, group),
-						ino, bitmap_bh->b_data)) {
-				/* we won it */
-				BUFFER_TRACE(bitmap_bh,
-					"call ext3_journal_dirty_metadata");
-				err = ext3_journal_dirty_metadata(handle,
-								bitmap_bh);
-				if (err)
-					goto fail;
-				goto got;
-			}
-			/* we lost it */
-			journal_release_buffer(handle, bitmap_bh);
-
-			if (++ino < EXT3_INODES_PER_GROUP(sb))
-				goto repeat_in_this_group;
-		}
-
-		/*
-		 * This case is possible in concurrent environment.  It is very
-		 * rare.  We cannot repeat the find_group_xxx() call because
-		 * that will simply return the same blockgroup, because the
-		 * group descriptor metadata has not yet been updated.
-		 * So we just go onto the next blockgroup.
-		 */
-		if (++group == sbi->s_groups_count)
-			group = 0;
-	}
-	err = -ENOSPC;
-	goto out;
-
-got:
-	ino += group * EXT3_INODES_PER_GROUP(sb) + 1;
-	if (ino < EXT3_FIRST_INO(sb) || ino > le32_to_cpu(es->s_inodes_count)) {
-		ext3_error (sb, "ext3_new_inode",
-			    "reserved inode or inode > inodes count - "
-			    "block_group = %d, inode=%lu", group, ino);
-		err = -EIO;
-		goto fail;
-	}
-
-	BUFFER_TRACE(bh2, "get_write_access");
-	err = ext3_journal_get_write_access(handle, bh2);
-	if (err) goto fail;
-	spin_lock(sb_bgl_lock(sbi, group));
-	le16_add_cpu(&gdp->bg_free_inodes_count, -1);
-	if (S_ISDIR(mode)) {
-		le16_add_cpu(&gdp->bg_used_dirs_count, 1);
-	}
-	spin_unlock(sb_bgl_lock(sbi, group));
-	BUFFER_TRACE(bh2, "call ext3_journal_dirty_metadata");
-	err = ext3_journal_dirty_metadata(handle, bh2);
-	if (err) goto fail;
-
-	percpu_counter_dec(&sbi->s_freeinodes_counter);
-	if (S_ISDIR(mode))
-		percpu_counter_inc(&sbi->s_dirs_counter);
-
-
-	if (test_opt(sb, GRPID)) {
-		inode->i_mode = mode;
-		inode->i_uid = current_fsuid();
-		inode->i_gid = dir->i_gid;
-	} else
-		inode_init_owner(inode, dir, mode);
-
-	inode->i_ino = ino;
-	/* This is the optimal IO size (for stat), not the fs block size */
-	inode->i_blocks = 0;
-	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
-
-	memset(ei->i_data, 0, sizeof(ei->i_data));
-	ei->i_dir_start_lookup = 0;
-	ei->i_disksize = 0;
-
-	ei->i_flags =
-		ext3_mask_flags(mode, EXT3_I(dir)->i_flags & EXT3_FL_INHERITED);
-#ifdef EXT3_FRAGMENTS
-	ei->i_faddr = 0;
-	ei->i_frag_no = 0;
-	ei->i_frag_size = 0;
-#endif
-	ei->i_file_acl = 0;
-	ei->i_dir_acl = 0;
-	ei->i_dtime = 0;
-	ei->i_block_alloc_info = NULL;
-	ei->i_block_group = group;
-
-	ext3_set_inode_flags(inode);
-	if (IS_DIRSYNC(inode))
-		handle->h_sync = 1;
-	if (insert_inode_locked(inode) < 0) {
-		/*
-		 * Likely a bitmap corruption causing inode to be allocated
-		 * twice.
-		 */
-		err = -EIO;
-		goto fail;
-	}
-	spin_lock(&sbi->s_next_gen_lock);
-	inode->i_generation = sbi->s_next_generation++;
-	spin_unlock(&sbi->s_next_gen_lock);
-
-	ei->i_state_flags = 0;
-	ext3_set_inode_state(inode, EXT3_STATE_NEW);
-
-	/* See comment in ext3_iget for explanation */
-	if (ino >= EXT3_FIRST_INO(sb) + 1 &&
-	    EXT3_INODE_SIZE(sb) > EXT3_GOOD_OLD_INODE_SIZE) {
-		ei->i_extra_isize =
-			sizeof(struct ext3_inode) - EXT3_GOOD_OLD_INODE_SIZE;
-	} else {
-		ei->i_extra_isize = 0;
-	}
-
-	ret = inode;
-	dquot_initialize(inode);
-	err = dquot_alloc_inode(inode);
-	if (err)
-		goto fail_drop;
-
-	err = ext3_init_acl(handle, inode, dir);
-	if (err)
-		goto fail_free_drop;
-
-	err = ext3_init_security(handle, inode, dir, qstr);
-	if (err)
-		goto fail_free_drop;
-
-	err = ext3_mark_inode_dirty(handle, inode);
-	if (err) {
-		ext3_std_error(sb, err);
-		goto fail_free_drop;
-	}
-
-	ext3_debug("allocating inode %lu\n", inode->i_ino);
-	trace_ext3_allocate_inode(inode, dir, mode);
-	goto really_out;
-fail:
-	ext3_std_error(sb, err);
-out:
-	iput(inode);
-	ret = ERR_PTR(err);
-really_out:
-	brelse(bitmap_bh);
-	return ret;
-
-fail_free_drop:
-	dquot_free_inode(inode);
-
-fail_drop:
-	dquot_drop(inode);
-	inode->i_flags |= S_NOQUOTA;
-	clear_nlink(inode);
-	unlock_new_inode(inode);
-	iput(inode);
-	brelse(bitmap_bh);
-	return ERR_PTR(err);
-}
-
-/* Verify that we are loading a valid orphan from disk */
-struct inode *ext3_orphan_get(struct super_block *sb, unsigned long ino)
-{
-	unsigned long max_ino = le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count);
-	unsigned long block_group;
-	int bit;
-	struct buffer_head *bitmap_bh;
-	struct inode *inode = NULL;
-	long err = -EIO;
-
-	/* Error cases - e2fsck has already cleaned up for us */
-	if (ino > max_ino) {
-		ext3_warning(sb, __func__,
-			     "bad orphan ino %lu!  e2fsck was run?", ino);
-		goto error;
-	}
-
-	block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
-	bit = (ino - 1) % EXT3_INODES_PER_GROUP(sb);
-	bitmap_bh = read_inode_bitmap(sb, block_group);
-	if (!bitmap_bh) {
-		ext3_warning(sb, __func__,
-			     "inode bitmap error for orphan %lu", ino);
-		goto error;
-	}
-
-	/* Having the inode bit set should be a 100% indicator that this
-	 * is a valid orphan (no e2fsck run on fs).  Orphans also include
-	 * inodes that were being truncated, so we can't check i_nlink==0.
-	 */
-	if (!ext3_test_bit(bit, bitmap_bh->b_data))
-		goto bad_orphan;
-
-	inode = ext3_iget(sb, ino);
-	if (IS_ERR(inode))
-		goto iget_failed;
-
-	/*
-	 * If the orphans has i_nlinks > 0 then it should be able to be
-	 * truncated, otherwise it won't be removed from the orphan list
-	 * during processing and an infinite loop will result.
-	 */
-	if (inode->i_nlink && !ext3_can_truncate(inode))
-		goto bad_orphan;
-
-	if (NEXT_ORPHAN(inode) > max_ino)
-		goto bad_orphan;
-	brelse(bitmap_bh);
-	return inode;
-
-iget_failed:
-	err = PTR_ERR(inode);
-	inode = NULL;
-bad_orphan:
-	ext3_warning(sb, __func__,
-		     "bad orphan inode %lu!  e2fsck was run?", ino);
-	printk(KERN_NOTICE "ext3_test_bit(bit=%d, block=%llu) = %d\n",
-	       bit, (unsigned long long)bitmap_bh->b_blocknr,
-	       ext3_test_bit(bit, bitmap_bh->b_data));
-	printk(KERN_NOTICE "inode=%p\n", inode);
-	if (inode) {
-		printk(KERN_NOTICE "is_bad_inode(inode)=%d\n",
-		       is_bad_inode(inode));
-		printk(KERN_NOTICE "NEXT_ORPHAN(inode)=%u\n",
-		       NEXT_ORPHAN(inode));
-		printk(KERN_NOTICE "max_ino=%lu\n", max_ino);
-		printk(KERN_NOTICE "i_nlink=%u\n", inode->i_nlink);
-		/* Avoid freeing blocks if we got a bad deleted inode */
-		if (inode->i_nlink == 0)
-			inode->i_blocks = 0;
-		iput(inode);
-	}
-	brelse(bitmap_bh);
-error:
-	return ERR_PTR(err);
-}
-
-unsigned long ext3_count_free_inodes (struct super_block * sb)
-{
-	unsigned long desc_count;
-	struct ext3_group_desc *gdp;
-	int i;
-#ifdef EXT3FS_DEBUG
-	struct ext3_super_block *es;
-	unsigned long bitmap_count, x;
-	struct buffer_head *bitmap_bh = NULL;
-
-	es = EXT3_SB(sb)->s_es;
-	desc_count = 0;
-	bitmap_count = 0;
-	gdp = NULL;
-	for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
-		gdp = ext3_get_group_desc (sb, i, NULL);
-		if (!gdp)
-			continue;
-		desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
-		brelse(bitmap_bh);
-		bitmap_bh = read_inode_bitmap(sb, i);
-		if (!bitmap_bh)
-			continue;
-
-		x = ext3_count_free(bitmap_bh, EXT3_INODES_PER_GROUP(sb) / 8);
-		printk("group %d: stored = %d, counted = %lu\n",
-			i, le16_to_cpu(gdp->bg_free_inodes_count), x);
-		bitmap_count += x;
-	}
-	brelse(bitmap_bh);
-	printk("ext3_count_free_inodes: stored = %u, computed = %lu, %lu\n",
-		le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
-	return desc_count;
-#else
-	desc_count = 0;
-	for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
-		gdp = ext3_get_group_desc (sb, i, NULL);
-		if (!gdp)
-			continue;
-		desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
-		cond_resched();
-	}
-	return desc_count;
-#endif
-}
-
-/* Called at mount-time, super-block is locked */
-unsigned long ext3_count_dirs (struct super_block * sb)
-{
-	unsigned long count = 0;
-	int i;
-
-	for (i = 0; i < EXT3_SB(sb)->s_groups_count; i++) {
-		struct ext3_group_desc *gdp = ext3_get_group_desc (sb, i, NULL);
-		if (!gdp)
-			continue;
-		count += le16_to_cpu(gdp->bg_used_dirs_count);
-	}
-	return count;
-}
-
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
deleted file mode 100644
index 6c7e5468a..000000000
--- a/fs/ext3/inode.c
+++ /dev/null
@@ -1,3574 +0,0 @@
-/*
- *  linux/fs/ext3/inode.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- *  from
- *
- *  linux/fs/minix/inode.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *
- *  Goal-directed block allocation by Stephen Tweedie
- *	(sct@redhat.com), 1993, 1998
- *  Big-endian to little-endian byte-swapping/bitmaps by
- *        David S. Miller (davem@caip.rutgers.edu), 1995
- *  64-bit file support on 64-bit platforms by Jakub Jelinek
- *	(jj@sunsite.ms.mff.cuni.cz)
- *
- *  Assorted race fixes, rewrite of ext3_get_block() by Al Viro, 2000
- */
-
-#include <linux/highuid.h>
-#include <linux/quotaops.h>
-#include <linux/writeback.h>
-#include <linux/mpage.h>
-#include <linux/namei.h>
-#include <linux/uio.h>
-#include "ext3.h"
-#include "xattr.h"
-#include "acl.h"
-
-static int ext3_writepage_trans_blocks(struct inode *inode);
-static int ext3_block_truncate_page(struct inode *inode, loff_t from);
-
-/*
- * Test whether an inode is a fast symlink.
- */
-static int ext3_inode_is_fast_symlink(struct inode *inode)
-{
-	int ea_blocks = EXT3_I(inode)->i_file_acl ?
-		(inode->i_sb->s_blocksize >> 9) : 0;
-
-	return (S_ISLNK(inode->i_mode) && inode->i_blocks - ea_blocks == 0);
-}
-
-/*
- * The ext3 forget function must perform a revoke if we are freeing data
- * which has been journaled.  Metadata (eg. indirect blocks) must be
- * revoked in all cases.
- *
- * "bh" may be NULL: a metadata block may have been freed from memory
- * but there may still be a record of it in the journal, and that record
- * still needs to be revoked.
- */
-int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,
-			struct buffer_head *bh, ext3_fsblk_t blocknr)
-{
-	int err;
-
-	might_sleep();
-
-	trace_ext3_forget(inode, is_metadata, blocknr);
-	BUFFER_TRACE(bh, "enter");
-
-	jbd_debug(4, "forgetting bh %p: is_metadata = %d, mode %o, "
-		  "data mode %lx\n",
-		  bh, is_metadata, inode->i_mode,
-		  test_opt(inode->i_sb, DATA_FLAGS));
-
-	/* Never use the revoke function if we are doing full data
-	 * journaling: there is no need to, and a V1 superblock won't
-	 * support it.  Otherwise, only skip the revoke on un-journaled
-	 * data blocks. */
-
-	if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ||
-	    (!is_metadata && !ext3_should_journal_data(inode))) {
-		if (bh) {
-			BUFFER_TRACE(bh, "call journal_forget");
-			return ext3_journal_forget(handle, bh);
-		}
-		return 0;
-	}
-
-	/*
-	 * data!=journal && (is_metadata || should_journal_data(inode))
-	 */
-	BUFFER_TRACE(bh, "call ext3_journal_revoke");
-	err = ext3_journal_revoke(handle, blocknr, bh);
-	if (err)
-		ext3_abort(inode->i_sb, __func__,
-			   "error %d when attempting revoke", err);
-	BUFFER_TRACE(bh, "exit");
-	return err;
-}
-
-/*
- * Work out how many blocks we need to proceed with the next chunk of a
- * truncate transaction.
- */
-static unsigned long blocks_for_truncate(struct inode *inode)
-{
-	unsigned long needed;
-
-	needed = inode->i_blocks >> (inode->i_sb->s_blocksize_bits - 9);
-
-	/* Give ourselves just enough room to cope with inodes in which
-	 * i_blocks is corrupt: we've seen disk corruptions in the past
-	 * which resulted in random data in an inode which looked enough
-	 * like a regular file for ext3 to try to delete it.  Things
-	 * will go a bit crazy if that happens, but at least we should
-	 * try not to panic the whole kernel. */
-	if (needed < 2)
-		needed = 2;
-
-	/* But we need to bound the transaction so we don't overflow the
-	 * journal. */
-	if (needed > EXT3_MAX_TRANS_DATA)
-		needed = EXT3_MAX_TRANS_DATA;
-
-	return EXT3_DATA_TRANS_BLOCKS(inode->i_sb) + needed;
-}
-
-/*
- * Truncate transactions can be complex and absolutely huge.  So we need to
- * be able to restart the transaction at a conventient checkpoint to make
- * sure we don't overflow the journal.
- *
- * start_transaction gets us a new handle for a truncate transaction,
- * and extend_transaction tries to extend the existing one a bit.  If
- * extend fails, we need to propagate the failure up and restart the
- * transaction in the top-level truncate loop. --sct
- */
-static handle_t *start_transaction(struct inode *inode)
-{
-	handle_t *result;
-
-	result = ext3_journal_start(inode, blocks_for_truncate(inode));
-	if (!IS_ERR(result))
-		return result;
-
-	ext3_std_error(inode->i_sb, PTR_ERR(result));
-	return result;
-}
-
-/*
- * Try to extend this transaction for the purposes of truncation.
- *
- * Returns 0 if we managed to create more room.  If we can't create more
- * room, and the transaction must be restarted we return 1.
- */
-static int try_to_extend_transaction(handle_t *handle, struct inode *inode)
-{
-	if (handle->h_buffer_credits > EXT3_RESERVE_TRANS_BLOCKS)
-		return 0;
-	if (!ext3_journal_extend(handle, blocks_for_truncate(inode)))
-		return 0;
-	return 1;
-}
-
-/*
- * Restart the transaction associated with *handle.  This does a commit,
- * so before we call here everything must be consistently dirtied against
- * this transaction.
- */
-static int truncate_restart_transaction(handle_t *handle, struct inode *inode)
-{
-	int ret;
-
-	jbd_debug(2, "restarting handle %p\n", handle);
-	/*
-	 * Drop truncate_mutex to avoid deadlock with ext3_get_blocks_handle
-	 * At this moment, get_block can be called only for blocks inside
-	 * i_size since page cache has been already dropped and writes are
-	 * blocked by i_mutex. So we can safely drop the truncate_mutex.
-	 */
-	mutex_unlock(&EXT3_I(inode)->truncate_mutex);
-	ret = ext3_journal_restart(handle, blocks_for_truncate(inode));
-	mutex_lock(&EXT3_I(inode)->truncate_mutex);
-	return ret;
-}
-
-/*
- * Called at inode eviction from icache
- */
-void ext3_evict_inode (struct inode *inode)
-{
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	struct ext3_block_alloc_info *rsv;
-	handle_t *handle;
-	int want_delete = 0;
-
-	trace_ext3_evict_inode(inode);
-	if (!inode->i_nlink && !is_bad_inode(inode)) {
-		dquot_initialize(inode);
-		want_delete = 1;
-	}
-
-	/*
-	 * When journalling data dirty buffers are tracked only in the journal.
-	 * So although mm thinks everything is clean and ready for reaping the
-	 * inode might still have some pages to write in the running
-	 * transaction or waiting to be checkpointed. Thus calling
-	 * journal_invalidatepage() (via truncate_inode_pages()) to discard
-	 * these buffers can cause data loss. Also even if we did not discard
-	 * these buffers, we would have no way to find them after the inode
-	 * is reaped and thus user could see stale data if he tries to read
-	 * them before the transaction is checkpointed. So be careful and
-	 * force everything to disk here... We use ei->i_datasync_tid to
-	 * store the newest transaction containing inode's data.
-	 *
-	 * Note that directories do not have this problem because they don't
-	 * use page cache.
-	 *
-	 * The s_journal check handles the case when ext3_get_journal() fails
-	 * and puts the journal inode.
-	 */
-	if (inode->i_nlink && ext3_should_journal_data(inode) &&
-	    EXT3_SB(inode->i_sb)->s_journal &&
-	    (S_ISLNK(inode->i_mode) || S_ISREG(inode->i_mode)) &&
-	    inode->i_ino != EXT3_JOURNAL_INO) {
-		tid_t commit_tid = atomic_read(&ei->i_datasync_tid);
-		journal_t *journal = EXT3_SB(inode->i_sb)->s_journal;
-
-		log_start_commit(journal, commit_tid);
-		log_wait_commit(journal, commit_tid);
-		filemap_write_and_wait(&inode->i_data);
-	}
-	truncate_inode_pages_final(&inode->i_data);
-
-	ext3_discard_reservation(inode);
-	rsv = ei->i_block_alloc_info;
-	ei->i_block_alloc_info = NULL;
-	if (unlikely(rsv))
-		kfree(rsv);
-
-	if (!want_delete)
-		goto no_delete;
-
-	handle = start_transaction(inode);
-	if (IS_ERR(handle)) {
-		/*
-		 * If we're going to skip the normal cleanup, we still need to
-		 * make sure that the in-core orphan linked list is properly
-		 * cleaned up.
-		 */
-		ext3_orphan_del(NULL, inode);
-		goto no_delete;
-	}
-
-	if (IS_SYNC(inode))
-		handle->h_sync = 1;
-	inode->i_size = 0;
-	if (inode->i_blocks)
-		ext3_truncate(inode);
-	/*
-	 * Kill off the orphan record created when the inode lost the last
-	 * link.  Note that ext3_orphan_del() has to be able to cope with the
-	 * deletion of a non-existent orphan - ext3_truncate() could
-	 * have removed the record.
-	 */
-	ext3_orphan_del(handle, inode);
-	ei->i_dtime = get_seconds();
-
-	/*
-	 * One subtle ordering requirement: if anything has gone wrong
-	 * (transaction abort, IO errors, whatever), then we can still
-	 * do these next steps (the fs will already have been marked as
-	 * having errors), but we can't free the inode if the mark_dirty
-	 * fails.
-	 */
-	if (ext3_mark_inode_dirty(handle, inode)) {
-		/* If that failed, just dquot_drop() and be done with that */
-		dquot_drop(inode);
-		clear_inode(inode);
-	} else {
-		ext3_xattr_delete_inode(handle, inode);
-		dquot_free_inode(inode);
-		dquot_drop(inode);
-		clear_inode(inode);
-		ext3_free_inode(handle, inode);
-	}
-	ext3_journal_stop(handle);
-	return;
-no_delete:
-	clear_inode(inode);
-	dquot_drop(inode);
-}
-
-typedef struct {
-	__le32	*p;
-	__le32	key;
-	struct buffer_head *bh;
-} Indirect;
-
-static inline void add_chain(Indirect *p, struct buffer_head *bh, __le32 *v)
-{
-	p->key = *(p->p = v);
-	p->bh = bh;
-}
-
-static int verify_chain(Indirect *from, Indirect *to)
-{
-	while (from <= to && from->key == *from->p)
-		from++;
-	return (from > to);
-}
-
-/**
- *	ext3_block_to_path - parse the block number into array of offsets
- *	@inode: inode in question (we are only interested in its superblock)
- *	@i_block: block number to be parsed
- *	@offsets: array to store the offsets in
- *      @boundary: set this non-zero if the referred-to block is likely to be
- *             followed (on disk) by an indirect block.
- *
- *	To store the locations of file's data ext3 uses a data structure common
- *	for UNIX filesystems - tree of pointers anchored in the inode, with
- *	data blocks at leaves and indirect blocks in intermediate nodes.
- *	This function translates the block number into path in that tree -
- *	return value is the path length and @offsets[n] is the offset of
- *	pointer to (n+1)th node in the nth one. If @block is out of range
- *	(negative or too large) warning is printed and zero returned.
- *
- *	Note: function doesn't find node addresses, so no IO is needed. All
- *	we need to know is the capacity of indirect blocks (taken from the
- *	inode->i_sb).
- */
-
-/*
- * Portability note: the last comparison (check that we fit into triple
- * indirect block) is spelled differently, because otherwise on an
- * architecture with 32-bit longs and 8Kb pages we might get into trouble
- * if our filesystem had 8Kb blocks. We might use long long, but that would
- * kill us on x86. Oh, well, at least the sign propagation does not matter -
- * i_block would have to be negative in the very beginning, so we would not
- * get there at all.
- */
-
-static int ext3_block_to_path(struct inode *inode,
-			long i_block, int offsets[4], int *boundary)
-{
-	int ptrs = EXT3_ADDR_PER_BLOCK(inode->i_sb);
-	int ptrs_bits = EXT3_ADDR_PER_BLOCK_BITS(inode->i_sb);
-	const long direct_blocks = EXT3_NDIR_BLOCKS,
-		indirect_blocks = ptrs,
-		double_blocks = (1 << (ptrs_bits * 2));
-	int n = 0;
-	int final = 0;
-
-	if (i_block < 0) {
-		ext3_warning (inode->i_sb, "ext3_block_to_path", "block < 0");
-	} else if (i_block < direct_blocks) {
-		offsets[n++] = i_block;
-		final = direct_blocks;
-	} else if ( (i_block -= direct_blocks) < indirect_blocks) {
-		offsets[n++] = EXT3_IND_BLOCK;
-		offsets[n++] = i_block;
-		final = ptrs;
-	} else if ((i_block -= indirect_blocks) < double_blocks) {
-		offsets[n++] = EXT3_DIND_BLOCK;
-		offsets[n++] = i_block >> ptrs_bits;
-		offsets[n++] = i_block & (ptrs - 1);
-		final = ptrs;
-	} else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
-		offsets[n++] = EXT3_TIND_BLOCK;
-		offsets[n++] = i_block >> (ptrs_bits * 2);
-		offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
-		offsets[n++] = i_block & (ptrs - 1);
-		final = ptrs;
-	} else {
-		ext3_warning(inode->i_sb, "ext3_block_to_path", "block > big");
-	}
-	if (boundary)
-		*boundary = final - 1 - (i_block & (ptrs - 1));
-	return n;
-}
-
-/**
- *	ext3_get_branch - read the chain of indirect blocks leading to data
- *	@inode: inode in question
- *	@depth: depth of the chain (1 - direct pointer, etc.)
- *	@offsets: offsets of pointers in inode/indirect blocks
- *	@chain: place to store the result
- *	@err: here we store the error value
- *
- *	Function fills the array of triples <key, p, bh> and returns %NULL
- *	if everything went OK or the pointer to the last filled triple
- *	(incomplete one) otherwise. Upon the return chain[i].key contains
- *	the number of (i+1)-th block in the chain (as it is stored in memory,
- *	i.e. little-endian 32-bit), chain[i].p contains the address of that
- *	number (it points into struct inode for i==0 and into the bh->b_data
- *	for i>0) and chain[i].bh points to the buffer_head of i-th indirect
- *	block for i>0 and NULL for i==0. In other words, it holds the block
- *	numbers of the chain, addresses they were taken from (and where we can
- *	verify that chain did not change) and buffer_heads hosting these
- *	numbers.
- *
- *	Function stops when it stumbles upon zero pointer (absent block)
- *		(pointer to last triple returned, *@err == 0)
- *	or when it gets an IO error reading an indirect block
- *		(ditto, *@err == -EIO)
- *	or when it notices that chain had been changed while it was reading
- *		(ditto, *@err == -EAGAIN)
- *	or when it reads all @depth-1 indirect blocks successfully and finds
- *	the whole chain, all way to the data (returns %NULL, *err == 0).
- */
-static Indirect *ext3_get_branch(struct inode *inode, int depth, int *offsets,
-				 Indirect chain[4], int *err)
-{
-	struct super_block *sb = inode->i_sb;
-	Indirect *p = chain;
-	struct buffer_head *bh;
-
-	*err = 0;
-	/* i_data is not going away, no lock needed */
-	add_chain (chain, NULL, EXT3_I(inode)->i_data + *offsets);
-	if (!p->key)
-		goto no_block;
-	while (--depth) {
-		bh = sb_bread(sb, le32_to_cpu(p->key));
-		if (!bh)
-			goto failure;
-		/* Reader: pointers */
-		if (!verify_chain(chain, p))
-			goto changed;
-		add_chain(++p, bh, (__le32*)bh->b_data + *++offsets);
-		/* Reader: end */
-		if (!p->key)
-			goto no_block;
-	}
-	return NULL;
-
-changed:
-	brelse(bh);
-	*err = -EAGAIN;
-	goto no_block;
-failure:
-	*err = -EIO;
-no_block:
-	return p;
-}
-
-/**
- *	ext3_find_near - find a place for allocation with sufficient locality
- *	@inode: owner
- *	@ind: descriptor of indirect block.
- *
- *	This function returns the preferred place for block allocation.
- *	It is used when heuristic for sequential allocation fails.
- *	Rules are:
- *	  + if there is a block to the left of our position - allocate near it.
- *	  + if pointer will live in indirect block - allocate near that block.
- *	  + if pointer will live in inode - allocate in the same
- *	    cylinder group.
- *
- * In the latter case we colour the starting block by the callers PID to
- * prevent it from clashing with concurrent allocations for a different inode
- * in the same block group.   The PID is used here so that functionally related
- * files will be close-by on-disk.
- *
- *	Caller must make sure that @ind is valid and will stay that way.
- */
-static ext3_fsblk_t ext3_find_near(struct inode *inode, Indirect *ind)
-{
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	__le32 *start = ind->bh ? (__le32*) ind->bh->b_data : ei->i_data;
-	__le32 *p;
-	ext3_fsblk_t bg_start;
-	ext3_grpblk_t colour;
-
-	/* Try to find previous block */
-	for (p = ind->p - 1; p >= start; p--) {
-		if (*p)
-			return le32_to_cpu(*p);
-	}
-
-	/* No such thing, so let's try location of indirect block */
-	if (ind->bh)
-		return ind->bh->b_blocknr;
-
-	/*
-	 * It is going to be referred to from the inode itself? OK, just put it
-	 * into the same cylinder group then.
-	 */
-	bg_start = ext3_group_first_block_no(inode->i_sb, ei->i_block_group);
-	colour = (current->pid % 16) *
-			(EXT3_BLOCKS_PER_GROUP(inode->i_sb) / 16);
-	return bg_start + colour;
-}
-
-/**
- *	ext3_find_goal - find a preferred place for allocation.
- *	@inode: owner
- *	@block:  block we want
- *	@partial: pointer to the last triple within a chain
- *
- *	Normally this function find the preferred place for block allocation,
- *	returns it.
- */
-
-static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block,
-				   Indirect *partial)
-{
-	struct ext3_block_alloc_info *block_i;
-
-	block_i =  EXT3_I(inode)->i_block_alloc_info;
-
-	/*
-	 * try the heuristic for sequential allocation,
-	 * failing that at least try to get decent locality.
-	 */
-	if (block_i && (block == block_i->last_alloc_logical_block + 1)
-		&& (block_i->last_alloc_physical_block != 0)) {
-		return block_i->last_alloc_physical_block + 1;
-	}
-
-	return ext3_find_near(inode, partial);
-}
-
-/**
- *	ext3_blks_to_allocate - Look up the block map and count the number
- *	of direct blocks need to be allocated for the given branch.
- *
- *	@branch: chain of indirect blocks
- *	@k: number of blocks need for indirect blocks
- *	@blks: number of data blocks to be mapped.
- *	@blocks_to_boundary:  the offset in the indirect block
- *
- *	return the total number of blocks to be allocate, including the
- *	direct and indirect blocks.
- */
-static int ext3_blks_to_allocate(Indirect *branch, int k, unsigned long blks,
-		int blocks_to_boundary)
-{
-	unsigned long count = 0;
-
-	/*
-	 * Simple case, [t,d]Indirect block(s) has not allocated yet
-	 * then it's clear blocks on that path have not allocated
-	 */
-	if (k > 0) {
-		/* right now we don't handle cross boundary allocation */
-		if (blks < blocks_to_boundary + 1)
-			count += blks;
-		else
-			count += blocks_to_boundary + 1;
-		return count;
-	}
-
-	count++;
-	while (count < blks && count <= blocks_to_boundary &&
-		le32_to_cpu(*(branch[0].p + count)) == 0) {
-		count++;
-	}
-	return count;
-}
-
-/**
- *	ext3_alloc_blocks - multiple allocate blocks needed for a branch
- *	@handle: handle for this transaction
- *	@inode: owner
- *	@goal: preferred place for allocation
- *	@indirect_blks: the number of blocks need to allocate for indirect
- *			blocks
- *	@blks:	number of blocks need to allocated for direct blocks
- *	@new_blocks: on return it will store the new block numbers for
- *	the indirect blocks(if needed) and the first direct block,
- *	@err: here we store the error value
- *
- *	return the number of direct blocks allocated
- */
-static int ext3_alloc_blocks(handle_t *handle, struct inode *inode,
-			ext3_fsblk_t goal, int indirect_blks, int blks,
-			ext3_fsblk_t new_blocks[4], int *err)
-{
-	int target, i;
-	unsigned long count = 0;
-	int index = 0;
-	ext3_fsblk_t current_block = 0;
-	int ret = 0;
-
-	/*
-	 * Here we try to allocate the requested multiple blocks at once,
-	 * on a best-effort basis.
-	 * To build a branch, we should allocate blocks for
-	 * the indirect blocks(if not allocated yet), and at least
-	 * the first direct block of this branch.  That's the
-	 * minimum number of blocks need to allocate(required)
-	 */
-	target = blks + indirect_blks;
-
-	while (1) {
-		count = target;
-		/* allocating blocks for indirect blocks and direct blocks */
-		current_block = ext3_new_blocks(handle,inode,goal,&count,err);
-		if (*err)
-			goto failed_out;
-
-		target -= count;
-		/* allocate blocks for indirect blocks */
-		while (index < indirect_blks && count) {
-			new_blocks[index++] = current_block++;
-			count--;
-		}
-
-		if (count > 0)
-			break;
-	}
-
-	/* save the new block number for the first direct block */
-	new_blocks[index] = current_block;
-
-	/* total number of blocks allocated for direct blocks */
-	ret = count;
-	*err = 0;
-	return ret;
-failed_out:
-	for (i = 0; i <index; i++)
-		ext3_free_blocks(handle, inode, new_blocks[i], 1);
-	return ret;
-}
-
-/**
- *	ext3_alloc_branch - allocate and set up a chain of blocks.
- *	@handle: handle for this transaction
- *	@inode: owner
- *	@indirect_blks: number of allocated indirect blocks
- *	@blks: number of allocated direct blocks
- *	@goal: preferred place for allocation
- *	@offsets: offsets (in the blocks) to store the pointers to next.
- *	@branch: place to store the chain in.
- *
- *	This function allocates blocks, zeroes out all but the last one,
- *	links them into chain and (if we are synchronous) writes them to disk.
- *	In other words, it prepares a branch that can be spliced onto the
- *	inode. It stores the information about that chain in the branch[], in
- *	the same format as ext3_get_branch() would do. We are calling it after
- *	we had read the existing part of chain and partial points to the last
- *	triple of that (one with zero ->key). Upon the exit we have the same
- *	picture as after the successful ext3_get_block(), except that in one
- *	place chain is disconnected - *branch->p is still zero (we did not
- *	set the last link), but branch->key contains the number that should
- *	be placed into *branch->p to fill that gap.
- *
- *	If allocation fails we free all blocks we've allocated (and forget
- *	their buffer_heads) and return the error value the from failed
- *	ext3_alloc_block() (normally -ENOSPC). Otherwise we set the chain
- *	as described above and return 0.
- */
-static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
-			int indirect_blks, int *blks, ext3_fsblk_t goal,
-			int *offsets, Indirect *branch)
-{
-	int blocksize = inode->i_sb->s_blocksize;
-	int i, n = 0;
-	int err = 0;
-	struct buffer_head *bh;
-	int num;
-	ext3_fsblk_t new_blocks[4];
-	ext3_fsblk_t current_block;
-
-	num = ext3_alloc_blocks(handle, inode, goal, indirect_blks,
-				*blks, new_blocks, &err);
-	if (err)
-		return err;
-
-	branch[0].key = cpu_to_le32(new_blocks[0]);
-	/*
-	 * metadata blocks and data blocks are allocated.
-	 */
-	for (n = 1; n <= indirect_blks;  n++) {
-		/*
-		 * Get buffer_head for parent block, zero it out
-		 * and set the pointer to new one, then send
-		 * parent to disk.
-		 */
-		bh = sb_getblk(inode->i_sb, new_blocks[n-1]);
-		if (unlikely(!bh)) {
-			err = -ENOMEM;
-			goto failed;
-		}
-		branch[n].bh = bh;
-		lock_buffer(bh);
-		BUFFER_TRACE(bh, "call get_create_access");
-		err = ext3_journal_get_create_access(handle, bh);
-		if (err) {
-			unlock_buffer(bh);
-			brelse(bh);
-			goto failed;
-		}
-
-		memset(bh->b_data, 0, blocksize);
-		branch[n].p = (__le32 *) bh->b_data + offsets[n];
-		branch[n].key = cpu_to_le32(new_blocks[n]);
-		*branch[n].p = branch[n].key;
-		if ( n == indirect_blks) {
-			current_block = new_blocks[n];
-			/*
-			 * End of chain, update the last new metablock of
-			 * the chain to point to the new allocated
-			 * data blocks numbers
-			 */
-			for (i=1; i < num; i++)
-				*(branch[n].p + i) = cpu_to_le32(++current_block);
-		}
-		BUFFER_TRACE(bh, "marking uptodate");
-		set_buffer_uptodate(bh);
-		unlock_buffer(bh);
-
-		BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
-		err = ext3_journal_dirty_metadata(handle, bh);
-		if (err)
-			goto failed;
-	}
-	*blks = num;
-	return err;
-failed:
-	/* Allocation failed, free what we already allocated */
-	for (i = 1; i <= n ; i++) {
-		BUFFER_TRACE(branch[i].bh, "call journal_forget");
-		ext3_journal_forget(handle, branch[i].bh);
-	}
-	for (i = 0; i < indirect_blks; i++)
-		ext3_free_blocks(handle, inode, new_blocks[i], 1);
-
-	ext3_free_blocks(handle, inode, new_blocks[i], num);
-
-	return err;
-}
-
-/**
- * ext3_splice_branch - splice the allocated branch onto inode.
- * @handle: handle for this transaction
- * @inode: owner
- * @block: (logical) number of block we are adding
- * @where: location of missing link
- * @num:   number of indirect blocks we are adding
- * @blks:  number of direct blocks we are adding
- *
- * This function fills the missing link and does all housekeeping needed in
- * inode (->i_blocks, etc.). In case of success we end up with the full
- * chain to new block and return 0.
- */
-static int ext3_splice_branch(handle_t *handle, struct inode *inode,
-			long block, Indirect *where, int num, int blks)
-{
-	int i;
-	int err = 0;
-	struct ext3_block_alloc_info *block_i;
-	ext3_fsblk_t current_block;
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	struct timespec now;
-
-	block_i = ei->i_block_alloc_info;
-	/*
-	 * If we're splicing into a [td]indirect block (as opposed to the
-	 * inode) then we need to get write access to the [td]indirect block
-	 * before the splice.
-	 */
-	if (where->bh) {
-		BUFFER_TRACE(where->bh, "get_write_access");
-		err = ext3_journal_get_write_access(handle, where->bh);
-		if (err)
-			goto err_out;
-	}
-	/* That's it */
-
-	*where->p = where->key;
-
-	/*
-	 * Update the host buffer_head or inode to point to more just allocated
-	 * direct blocks blocks
-	 */
-	if (num == 0 && blks > 1) {
-		current_block = le32_to_cpu(where->key) + 1;
-		for (i = 1; i < blks; i++)
-			*(where->p + i ) = cpu_to_le32(current_block++);
-	}
-
-	/*
-	 * update the most recently allocated logical & physical block
-	 * in i_block_alloc_info, to assist find the proper goal block for next
-	 * allocation
-	 */
-	if (block_i) {
-		block_i->last_alloc_logical_block = block + blks - 1;
-		block_i->last_alloc_physical_block =
-				le32_to_cpu(where[num].key) + blks - 1;
-	}
-
-	/* We are done with atomic stuff, now do the rest of housekeeping */
-	now = CURRENT_TIME_SEC;
-	if (!timespec_equal(&inode->i_ctime, &now) || !where->bh) {
-		inode->i_ctime = now;
-		ext3_mark_inode_dirty(handle, inode);
-	}
-	/* ext3_mark_inode_dirty already updated i_sync_tid */
-	atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid);
-
-	/* had we spliced it onto indirect block? */
-	if (where->bh) {
-		/*
-		 * If we spliced it onto an indirect block, we haven't
-		 * altered the inode.  Note however that if it is being spliced
-		 * onto an indirect block at the very end of the file (the
-		 * file is growing) then we *will* alter the inode to reflect
-		 * the new i_size.  But that is not done here - it is done in
-		 * generic_commit_write->__mark_inode_dirty->ext3_dirty_inode.
-		 */
-		jbd_debug(5, "splicing indirect only\n");
-		BUFFER_TRACE(where->bh, "call ext3_journal_dirty_metadata");
-		err = ext3_journal_dirty_metadata(handle, where->bh);
-		if (err)
-			goto err_out;
-	} else {
-		/*
-		 * OK, we spliced it into the inode itself on a direct block.
-		 * Inode was dirtied above.
-		 */
-		jbd_debug(5, "splicing direct\n");
-	}
-	return err;
-
-err_out:
-	for (i = 1; i <= num; i++) {
-		BUFFER_TRACE(where[i].bh, "call journal_forget");
-		ext3_journal_forget(handle, where[i].bh);
-		ext3_free_blocks(handle,inode,le32_to_cpu(where[i-1].key),1);
-	}
-	ext3_free_blocks(handle, inode, le32_to_cpu(where[num].key), blks);
-
-	return err;
-}
-
-/*
- * Allocation strategy is simple: if we have to allocate something, we will
- * have to go the whole way to leaf. So let's do it before attaching anything
- * to tree, set linkage between the newborn blocks, write them if sync is
- * required, recheck the path, free and repeat if check fails, otherwise
- * set the last missing link (that will protect us from any truncate-generated
- * removals - all blocks on the path are immune now) and possibly force the
- * write on the parent block.
- * That has a nice additional property: no special recovery from the failed
- * allocations is needed - we simply release blocks and do not touch anything
- * reachable from inode.
- *
- * `handle' can be NULL if create == 0.
- *
- * The BKL may not be held on entry here.  Be sure to take it early.
- * return > 0, # of blocks mapped or allocated.
- * return = 0, if plain lookup failed.
- * return < 0, error case.
- */
-int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
-		sector_t iblock, unsigned long maxblocks,
-		struct buffer_head *bh_result,
-		int create)
-{
-	int err = -EIO;
-	int offsets[4];
-	Indirect chain[4];
-	Indirect *partial;
-	ext3_fsblk_t goal;
-	int indirect_blks;
-	int blocks_to_boundary = 0;
-	int depth;
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	int count = 0;
-	ext3_fsblk_t first_block = 0;
-
-
-	trace_ext3_get_blocks_enter(inode, iblock, maxblocks, create);
-	J_ASSERT(handle != NULL || create == 0);
-	depth = ext3_block_to_path(inode,iblock,offsets,&blocks_to_boundary);
-
-	if (depth == 0)
-		goto out;
-
-	partial = ext3_get_branch(inode, depth, offsets, chain, &err);
-
-	/* Simplest case - block found, no allocation needed */
-	if (!partial) {
-		first_block = le32_to_cpu(chain[depth - 1].key);
-		clear_buffer_new(bh_result);
-		count++;
-		/*map more blocks*/
-		while (count < maxblocks && count <= blocks_to_boundary) {
-			ext3_fsblk_t blk;
-
-			if (!verify_chain(chain, chain + depth - 1)) {
-				/*
-				 * Indirect block might be removed by
-				 * truncate while we were reading it.
-				 * Handling of that case: forget what we've
-				 * got now. Flag the err as EAGAIN, so it
-				 * will reread.
-				 */
-				err = -EAGAIN;
-				count = 0;
-				break;
-			}
-			blk = le32_to_cpu(*(chain[depth-1].p + count));
-
-			if (blk == first_block + count)
-				count++;
-			else
-				break;
-		}
-		if (err != -EAGAIN)
-			goto got_it;
-	}
-
-	/* Next simple case - plain lookup or failed read of indirect block */
-	if (!create || err == -EIO)
-		goto cleanup;
-
-	/*
-	 * Block out ext3_truncate while we alter the tree
-	 */
-	mutex_lock(&ei->truncate_mutex);
-
-	/*
-	 * If the indirect block is missing while we are reading
-	 * the chain(ext3_get_branch() returns -EAGAIN err), or
-	 * if the chain has been changed after we grab the semaphore,
-	 * (either because another process truncated this branch, or
-	 * another get_block allocated this branch) re-grab the chain to see if
-	 * the request block has been allocated or not.
-	 *
-	 * Since we already block the truncate/other get_block
-	 * at this point, we will have the current copy of the chain when we
-	 * splice the branch into the tree.
-	 */
-	if (err == -EAGAIN || !verify_chain(chain, partial)) {
-		while (partial > chain) {
-			brelse(partial->bh);
-			partial--;
-		}
-		partial = ext3_get_branch(inode, depth, offsets, chain, &err);
-		if (!partial) {
-			count++;
-			mutex_unlock(&ei->truncate_mutex);
-			if (err)
-				goto cleanup;
-			clear_buffer_new(bh_result);
-			goto got_it;
-		}
-	}
-
-	/*
-	 * Okay, we need to do block allocation.  Lazily initialize the block
-	 * allocation info here if necessary
-	*/
-	if (S_ISREG(inode->i_mode) && (!ei->i_block_alloc_info))
-		ext3_init_block_alloc_info(inode);
-
-	goal = ext3_find_goal(inode, iblock, partial);
-
-	/* the number of blocks need to allocate for [d,t]indirect blocks */
-	indirect_blks = (chain + depth) - partial - 1;
-
-	/*
-	 * Next look up the indirect map to count the totoal number of
-	 * direct blocks to allocate for this branch.
-	 */
-	count = ext3_blks_to_allocate(partial, indirect_blks,
-					maxblocks, blocks_to_boundary);
-	err = ext3_alloc_branch(handle, inode, indirect_blks, &count, goal,
-				offsets + (partial - chain), partial);
-
-	/*
-	 * The ext3_splice_branch call will free and forget any buffers
-	 * on the new chain if there is a failure, but that risks using
-	 * up transaction credits, especially for bitmaps where the
-	 * credits cannot be returned.  Can we handle this somehow?  We
-	 * may need to return -EAGAIN upwards in the worst case.  --sct
-	 */
-	if (!err)
-		err = ext3_splice_branch(handle, inode, iblock,
-					partial, indirect_blks, count);
-	mutex_unlock(&ei->truncate_mutex);
-	if (err)
-		goto cleanup;
-
-	set_buffer_new(bh_result);
-got_it:
-	map_bh(bh_result, inode->i_sb, le32_to_cpu(chain[depth-1].key));
-	if (count > blocks_to_boundary)
-		set_buffer_boundary(bh_result);
-	err = count;
-	/* Clean up and exit */
-	partial = chain + depth - 1;	/* the whole chain */
-cleanup:
-	while (partial > chain) {
-		BUFFER_TRACE(partial->bh, "call brelse");
-		brelse(partial->bh);
-		partial--;
-	}
-	BUFFER_TRACE(bh_result, "returned");
-out:
-	trace_ext3_get_blocks_exit(inode, iblock,
-				   depth ? le32_to_cpu(chain[depth-1].key) : 0,
-				   count, err);
-	return err;
-}
-
-/* Maximum number of blocks we map for direct IO at once. */
-#define DIO_MAX_BLOCKS 4096
-/*
- * Number of credits we need for writing DIO_MAX_BLOCKS:
- * We need sb + group descriptor + bitmap + inode -> 4
- * For B blocks with A block pointers per block we need:
- * 1 (triple ind.) + (B/A/A + 2) (doubly ind.) + (B/A + 2) (indirect).
- * If we plug in 4096 for B and 256 for A (for 1KB block size), we get 25.
- */
-#define DIO_CREDITS 25
-
-static int ext3_get_block(struct inode *inode, sector_t iblock,
-			struct buffer_head *bh_result, int create)
-{
-	handle_t *handle = ext3_journal_current_handle();
-	int ret = 0, started = 0;
-	unsigned max_blocks = bh_result->b_size >> inode->i_blkbits;
-
-	if (create && !handle) {	/* Direct IO write... */
-		if (max_blocks > DIO_MAX_BLOCKS)
-			max_blocks = DIO_MAX_BLOCKS;
-		handle = ext3_journal_start(inode, DIO_CREDITS +
-				EXT3_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb));
-		if (IS_ERR(handle)) {
-			ret = PTR_ERR(handle);
-			goto out;
-		}
-		started = 1;
-	}
-
-	ret = ext3_get_blocks_handle(handle, inode, iblock,
-					max_blocks, bh_result, create);
-	if (ret > 0) {
-		bh_result->b_size = (ret << inode->i_blkbits);
-		ret = 0;
-	}
-	if (started)
-		ext3_journal_stop(handle);
-out:
-	return ret;
-}
-
-int ext3_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
-		u64 start, u64 len)
-{
-	return generic_block_fiemap(inode, fieinfo, start, len,
-				    ext3_get_block);
-}
-
-/*
- * `handle' can be NULL if create is zero
- */
-struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode,
-				long block, int create, int *errp)
-{
-	struct buffer_head dummy;
-	int fatal = 0, err;
-
-	J_ASSERT(handle != NULL || create == 0);
-
-	dummy.b_state = 0;
-	dummy.b_blocknr = -1000;
-	buffer_trace_init(&dummy.b_history);
-	err = ext3_get_blocks_handle(handle, inode, block, 1,
-					&dummy, create);
-	/*
-	 * ext3_get_blocks_handle() returns number of blocks
-	 * mapped. 0 in case of a HOLE.
-	 */
-	if (err > 0) {
-		WARN_ON(err > 1);
-		err = 0;
-	}
-	*errp = err;
-	if (!err && buffer_mapped(&dummy)) {
-		struct buffer_head *bh;
-		bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
-		if (unlikely(!bh)) {
-			*errp = -ENOMEM;
-			goto err;
-		}
-		if (buffer_new(&dummy)) {
-			J_ASSERT(create != 0);
-			J_ASSERT(handle != NULL);
-
-			/*
-			 * Now that we do not always journal data, we should
-			 * keep in mind whether this should always journal the
-			 * new buffer as metadata.  For now, regular file
-			 * writes use ext3_get_block instead, so it's not a
-			 * problem.
-			 */
-			lock_buffer(bh);
-			BUFFER_TRACE(bh, "call get_create_access");
-			fatal = ext3_journal_get_create_access(handle, bh);
-			if (!fatal && !buffer_uptodate(bh)) {
-				memset(bh->b_data,0,inode->i_sb->s_blocksize);
-				set_buffer_uptodate(bh);
-			}
-			unlock_buffer(bh);
-			BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
-			err = ext3_journal_dirty_metadata(handle, bh);
-			if (!fatal)
-				fatal = err;
-		} else {
-			BUFFER_TRACE(bh, "not a new buffer");
-		}
-		if (fatal) {
-			*errp = fatal;
-			brelse(bh);
-			bh = NULL;
-		}
-		return bh;
-	}
-err:
-	return NULL;
-}
-
-struct buffer_head *ext3_bread(handle_t *handle, struct inode *inode,
-			       int block, int create, int *err)
-{
-	struct buffer_head * bh;
-
-	bh = ext3_getblk(handle, inode, block, create, err);
-	if (!bh)
-		return bh;
-	if (bh_uptodate_or_lock(bh))
-		return bh;
-	get_bh(bh);
-	bh->b_end_io = end_buffer_read_sync;
-	submit_bh(READ | REQ_META | REQ_PRIO, bh);
-	wait_on_buffer(bh);
-	if (buffer_uptodate(bh))
-		return bh;
-	put_bh(bh);
-	*err = -EIO;
-	return NULL;
-}
-
-static int walk_page_buffers(	handle_t *handle,
-				struct buffer_head *head,
-				unsigned from,
-				unsigned to,
-				int *partial,
-				int (*fn)(	handle_t *handle,
-						struct buffer_head *bh))
-{
-	struct buffer_head *bh;
-	unsigned block_start, block_end;
-	unsigned blocksize = head->b_size;
-	int err, ret = 0;
-	struct buffer_head *next;
-
-	for (	bh = head, block_start = 0;
-		ret == 0 && (bh != head || !block_start);
-		block_start = block_end, bh = next)
-	{
-		next = bh->b_this_page;
-		block_end = block_start + blocksize;
-		if (block_end <= from || block_start >= to) {
-			if (partial && !buffer_uptodate(bh))
-				*partial = 1;
-			continue;
-		}
-		err = (*fn)(handle, bh);
-		if (!ret)
-			ret = err;
-	}
-	return ret;
-}
-
-/*
- * To preserve ordering, it is essential that the hole instantiation and
- * the data write be encapsulated in a single transaction.  We cannot
- * close off a transaction and start a new one between the ext3_get_block()
- * and the commit_write().  So doing the journal_start at the start of
- * prepare_write() is the right place.
- *
- * Also, this function can nest inside ext3_writepage() ->
- * block_write_full_page(). In that case, we *know* that ext3_writepage()
- * has generated enough buffer credits to do the whole page.  So we won't
- * block on the journal in that case, which is good, because the caller may
- * be PF_MEMALLOC.
- *
- * By accident, ext3 can be reentered when a transaction is open via
- * quota file writes.  If we were to commit the transaction while thus
- * reentered, there can be a deadlock - we would be holding a quota
- * lock, and the commit would never complete if another thread had a
- * transaction open and was blocking on the quota lock - a ranking
- * violation.
- *
- * So what we do is to rely on the fact that journal_stop/journal_start
- * will _not_ run commit under these circumstances because handle->h_ref
- * is elevated.  We'll still have enough credits for the tiny quotafile
- * write.
- */
-static int do_journal_get_write_access(handle_t *handle,
-					struct buffer_head *bh)
-{
-	int dirty = buffer_dirty(bh);
-	int ret;
-
-	if (!buffer_mapped(bh) || buffer_freed(bh))
-		return 0;
-	/*
-	 * __block_prepare_write() could have dirtied some buffers. Clean
-	 * the dirty bit as jbd2_journal_get_write_access() could complain
-	 * otherwise about fs integrity issues. Setting of the dirty bit
-	 * by __block_prepare_write() isn't a real problem here as we clear
-	 * the bit before releasing a page lock and thus writeback cannot
-	 * ever write the buffer.
-	 */
-	if (dirty)
-		clear_buffer_dirty(bh);
-	ret = ext3_journal_get_write_access(handle, bh);
-	if (!ret && dirty)
-		ret = ext3_journal_dirty_metadata(handle, bh);
-	return ret;
-}
-
-/*
- * Truncate blocks that were not used by write. We have to truncate the
- * pagecache as well so that corresponding buffers get properly unmapped.
- */
-static void ext3_truncate_failed_write(struct inode *inode)
-{
-	truncate_inode_pages(inode->i_mapping, inode->i_size);
-	ext3_truncate(inode);
-}
-
-/*
- * Truncate blocks that were not used by direct IO write. We have to zero out
- * the last file block as well because direct IO might have written to it.
- */
-static void ext3_truncate_failed_direct_write(struct inode *inode)
-{
-	ext3_block_truncate_page(inode, inode->i_size);
-	ext3_truncate(inode);
-}
-
-static int ext3_write_begin(struct file *file, struct address_space *mapping,
-				loff_t pos, unsigned len, unsigned flags,
-				struct page **pagep, void **fsdata)
-{
-	struct inode *inode = mapping->host;
-	int ret;
-	handle_t *handle;
-	int retries = 0;
-	struct page *page;
-	pgoff_t index;
-	unsigned from, to;
-	/* Reserve one block more for addition to orphan list in case
-	 * we allocate blocks but write fails for some reason */
-	int needed_blocks = ext3_writepage_trans_blocks(inode) + 1;
-
-	trace_ext3_write_begin(inode, pos, len, flags);
-
-	index = pos >> PAGE_CACHE_SHIFT;
-	from = pos & (PAGE_CACHE_SIZE - 1);
-	to = from + len;
-
-retry:
-	page = grab_cache_page_write_begin(mapping, index, flags);
-	if (!page)
-		return -ENOMEM;
-	*pagep = page;
-
-	handle = ext3_journal_start(inode, needed_blocks);
-	if (IS_ERR(handle)) {
-		unlock_page(page);
-		page_cache_release(page);
-		ret = PTR_ERR(handle);
-		goto out;
-	}
-	ret = __block_write_begin(page, pos, len, ext3_get_block);
-	if (ret)
-		goto write_begin_failed;
-
-	if (ext3_should_journal_data(inode)) {
-		ret = walk_page_buffers(handle, page_buffers(page),
-				from, to, NULL, do_journal_get_write_access);
-	}
-write_begin_failed:
-	if (ret) {
-		/*
-		 * block_write_begin may have instantiated a few blocks
-		 * outside i_size.  Trim these off again. Don't need
-		 * i_size_read because we hold i_mutex.
-		 *
-		 * Add inode to orphan list in case we crash before truncate
-		 * finishes. Do this only if ext3_can_truncate() agrees so
-		 * that orphan processing code is happy.
-		 */
-		if (pos + len > inode->i_size && ext3_can_truncate(inode))
-			ext3_orphan_add(handle, inode);
-		ext3_journal_stop(handle);
-		unlock_page(page);
-		page_cache_release(page);
-		if (pos + len > inode->i_size)
-			ext3_truncate_failed_write(inode);
-	}
-	if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries))
-		goto retry;
-out:
-	return ret;
-}
-
-
-int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh)
-{
-	int err = journal_dirty_data(handle, bh);
-	if (err)
-		ext3_journal_abort_handle(__func__, __func__,
-						bh, handle, err);
-	return err;
-}
-
-/* For ordered writepage and write_end functions */
-static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
-{
-	/*
-	 * Write could have mapped the buffer but it didn't copy the data in
-	 * yet. So avoid filing such buffer into a transaction.
-	 */
-	if (buffer_mapped(bh) && buffer_uptodate(bh))
-		return ext3_journal_dirty_data(handle, bh);
-	return 0;
-}
-
-/* For write_end() in data=journal mode */
-static int write_end_fn(handle_t *handle, struct buffer_head *bh)
-{
-	if (!buffer_mapped(bh) || buffer_freed(bh))
-		return 0;
-	set_buffer_uptodate(bh);
-	return ext3_journal_dirty_metadata(handle, bh);
-}
-
-/*
- * This is nasty and subtle: ext3_write_begin() could have allocated blocks
- * for the whole page but later we failed to copy the data in. Update inode
- * size according to what we managed to copy. The rest is going to be
- * truncated in write_end function.
- */
-static void update_file_sizes(struct inode *inode, loff_t pos, unsigned copied)
-{
-	/* What matters to us is i_disksize. We don't write i_size anywhere */
-	if (pos + copied > inode->i_size)
-		i_size_write(inode, pos + copied);
-	if (pos + copied > EXT3_I(inode)->i_disksize) {
-		EXT3_I(inode)->i_disksize = pos + copied;
-		mark_inode_dirty(inode);
-	}
-}
-
-/*
- * We need to pick up the new inode size which generic_commit_write gave us
- * `file' can be NULL - eg, when called from page_symlink().
- *
- * ext3 never places buffers on inode->i_mapping->private_list.  metadata
- * buffers are managed internally.
- */
-static int ext3_ordered_write_end(struct file *file,
-				struct address_space *mapping,
-				loff_t pos, unsigned len, unsigned copied,
-				struct page *page, void *fsdata)
-{
-	handle_t *handle = ext3_journal_current_handle();
-	struct inode *inode = file->f_mapping->host;
-	unsigned from, to;
-	int ret = 0, ret2;
-
-	trace_ext3_ordered_write_end(inode, pos, len, copied);
-	copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
-
-	from = pos & (PAGE_CACHE_SIZE - 1);
-	to = from + copied;
-	ret = walk_page_buffers(handle, page_buffers(page),
-		from, to, NULL, journal_dirty_data_fn);
-
-	if (ret == 0)
-		update_file_sizes(inode, pos, copied);
-	/*
-	 * There may be allocated blocks outside of i_size because
-	 * we failed to copy some data. Prepare for truncate.
-	 */
-	if (pos + len > inode->i_size && ext3_can_truncate(inode))
-		ext3_orphan_add(handle, inode);
-	ret2 = ext3_journal_stop(handle);
-	if (!ret)
-		ret = ret2;
-	unlock_page(page);
-	page_cache_release(page);
-
-	if (pos + len > inode->i_size)
-		ext3_truncate_failed_write(inode);
-	return ret ? ret : copied;
-}
-
-static int ext3_writeback_write_end(struct file *file,
-				struct address_space *mapping,
-				loff_t pos, unsigned len, unsigned copied,
-				struct page *page, void *fsdata)
-{
-	handle_t *handle = ext3_journal_current_handle();
-	struct inode *inode = file->f_mapping->host;
-	int ret;
-
-	trace_ext3_writeback_write_end(inode, pos, len, copied);
-	copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
-	update_file_sizes(inode, pos, copied);
-	/*
-	 * There may be allocated blocks outside of i_size because
-	 * we failed to copy some data. Prepare for truncate.
-	 */
-	if (pos + len > inode->i_size && ext3_can_truncate(inode))
-		ext3_orphan_add(handle, inode);
-	ret = ext3_journal_stop(handle);
-	unlock_page(page);
-	page_cache_release(page);
-
-	if (pos + len > inode->i_size)
-		ext3_truncate_failed_write(inode);
-	return ret ? ret : copied;
-}
-
-static int ext3_journalled_write_end(struct file *file,
-				struct address_space *mapping,
-				loff_t pos, unsigned len, unsigned copied,
-				struct page *page, void *fsdata)
-{
-	handle_t *handle = ext3_journal_current_handle();
-	struct inode *inode = mapping->host;
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	int ret = 0, ret2;
-	int partial = 0;
-	unsigned from, to;
-
-	trace_ext3_journalled_write_end(inode, pos, len, copied);
-	from = pos & (PAGE_CACHE_SIZE - 1);
-	to = from + len;
-
-	if (copied < len) {
-		if (!PageUptodate(page))
-			copied = 0;
-		page_zero_new_buffers(page, from + copied, to);
-		to = from + copied;
-	}
-
-	ret = walk_page_buffers(handle, page_buffers(page), from,
-				to, &partial, write_end_fn);
-	if (!partial)
-		SetPageUptodate(page);
-
-	if (pos + copied > inode->i_size)
-		i_size_write(inode, pos + copied);
-	/*
-	 * There may be allocated blocks outside of i_size because
-	 * we failed to copy some data. Prepare for truncate.
-	 */
-	if (pos + len > inode->i_size && ext3_can_truncate(inode))
-		ext3_orphan_add(handle, inode);
-	ext3_set_inode_state(inode, EXT3_STATE_JDATA);
-	atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid);
-	if (inode->i_size > ei->i_disksize) {
-		ei->i_disksize = inode->i_size;
-		ret2 = ext3_mark_inode_dirty(handle, inode);
-		if (!ret)
-			ret = ret2;
-	}
-
-	ret2 = ext3_journal_stop(handle);
-	if (!ret)
-		ret = ret2;
-	unlock_page(page);
-	page_cache_release(page);
-
-	if (pos + len > inode->i_size)
-		ext3_truncate_failed_write(inode);
-	return ret ? ret : copied;
-}
-
-/*
- * bmap() is special.  It gets used by applications such as lilo and by
- * the swapper to find the on-disk block of a specific piece of data.
- *
- * Naturally, this is dangerous if the block concerned is still in the
- * journal.  If somebody makes a swapfile on an ext3 data-journaling
- * filesystem and enables swap, then they may get a nasty shock when the
- * data getting swapped to that swapfile suddenly gets overwritten by
- * the original zero's written out previously to the journal and
- * awaiting writeback in the kernel's buffer cache.
- *
- * So, if we see any bmap calls here on a modified, data-journaled file,
- * take extra steps to flush any blocks which might be in the cache.
- */
-static sector_t ext3_bmap(struct address_space *mapping, sector_t block)
-{
-	struct inode *inode = mapping->host;
-	journal_t *journal;
-	int err;
-
-	if (ext3_test_inode_state(inode, EXT3_STATE_JDATA)) {
-		/*
-		 * This is a REALLY heavyweight approach, but the use of
-		 * bmap on dirty files is expected to be extremely rare:
-		 * only if we run lilo or swapon on a freshly made file
-		 * do we expect this to happen.
-		 *
-		 * (bmap requires CAP_SYS_RAWIO so this does not
-		 * represent an unprivileged user DOS attack --- we'd be
-		 * in trouble if mortal users could trigger this path at
-		 * will.)
-		 *
-		 * NB. EXT3_STATE_JDATA is not set on files other than
-		 * regular files.  If somebody wants to bmap a directory
-		 * or symlink and gets confused because the buffer
-		 * hasn't yet been flushed to disk, they deserve
-		 * everything they get.
-		 */
-
-		ext3_clear_inode_state(inode, EXT3_STATE_JDATA);
-		journal = EXT3_JOURNAL(inode);
-		journal_lock_updates(journal);
-		err = journal_flush(journal);
-		journal_unlock_updates(journal);
-
-		if (err)
-			return 0;
-	}
-
-	return generic_block_bmap(mapping,block,ext3_get_block);
-}
-
-static int bget_one(handle_t *handle, struct buffer_head *bh)
-{
-	get_bh(bh);
-	return 0;
-}
-
-static int bput_one(handle_t *handle, struct buffer_head *bh)
-{
-	put_bh(bh);
-	return 0;
-}
-
-static int buffer_unmapped(handle_t *handle, struct buffer_head *bh)
-{
-	return !buffer_mapped(bh);
-}
-
-/*
- * Note that whenever we need to map blocks we start a transaction even if
- * we're not journalling data.  This is to preserve ordering: any hole
- * instantiation within __block_write_full_page -> ext3_get_block() should be
- * journalled along with the data so we don't crash and then get metadata which
- * refers to old data.
- *
- * In all journalling modes block_write_full_page() will start the I/O.
- *
- * We don't honour synchronous mounts for writepage().  That would be
- * disastrous.  Any write() or metadata operation will sync the fs for
- * us.
- */
-static int ext3_ordered_writepage(struct page *page,
-				struct writeback_control *wbc)
-{
-	struct inode *inode = page->mapping->host;
-	struct buffer_head *page_bufs;
-	handle_t *handle = NULL;
-	int ret = 0;
-	int err;
-
-	J_ASSERT(PageLocked(page));
-	/*
-	 * We don't want to warn for emergency remount. The condition is
-	 * ordered to avoid dereferencing inode->i_sb in non-error case to
-	 * avoid slow-downs.
-	 */
-	WARN_ON_ONCE(IS_RDONLY(inode) &&
-		     !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ERROR_FS));
-
-	/*
-	 * We give up here if we're reentered, because it might be for a
-	 * different filesystem.
-	 */
-	if (ext3_journal_current_handle())
-		goto out_fail;
-
-	trace_ext3_ordered_writepage(page);
-	if (!page_has_buffers(page)) {
-		create_empty_buffers(page, inode->i_sb->s_blocksize,
-				(1 << BH_Dirty)|(1 << BH_Uptodate));
-		page_bufs = page_buffers(page);
-	} else {
-		page_bufs = page_buffers(page);
-		if (!walk_page_buffers(NULL, page_bufs, 0, PAGE_CACHE_SIZE,
-				       NULL, buffer_unmapped)) {
-			/* Provide NULL get_block() to catch bugs if buffers
-			 * weren't really mapped */
-			return block_write_full_page(page, NULL, wbc);
-		}
-	}
-	handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode));
-
-	if (IS_ERR(handle)) {
-		ret = PTR_ERR(handle);
-		goto out_fail;
-	}
-
-	walk_page_buffers(handle, page_bufs, 0,
-			PAGE_CACHE_SIZE, NULL, bget_one);
-
-	ret = block_write_full_page(page, ext3_get_block, wbc);
-
-	/*
-	 * The page can become unlocked at any point now, and
-	 * truncate can then come in and change things.  So we
-	 * can't touch *page from now on.  But *page_bufs is
-	 * safe due to elevated refcount.
-	 */
-
-	/*
-	 * And attach them to the current transaction.  But only if
-	 * block_write_full_page() succeeded.  Otherwise they are unmapped,
-	 * and generally junk.
-	 */
-	if (ret == 0)
-		ret = walk_page_buffers(handle, page_bufs, 0, PAGE_CACHE_SIZE,
-					NULL, journal_dirty_data_fn);
-	walk_page_buffers(handle, page_bufs, 0,
-			PAGE_CACHE_SIZE, NULL, bput_one);
-	err = ext3_journal_stop(handle);
-	if (!ret)
-		ret = err;
-	return ret;
-
-out_fail:
-	redirty_page_for_writepage(wbc, page);
-	unlock_page(page);
-	return ret;
-}
-
-static int ext3_writeback_writepage(struct page *page,
-				struct writeback_control *wbc)
-{
-	struct inode *inode = page->mapping->host;
-	handle_t *handle = NULL;
-	int ret = 0;
-	int err;
-
-	J_ASSERT(PageLocked(page));
-	/*
-	 * We don't want to warn for emergency remount. The condition is
-	 * ordered to avoid dereferencing inode->i_sb in non-error case to
-	 * avoid slow-downs.
-	 */
-	WARN_ON_ONCE(IS_RDONLY(inode) &&
-		     !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ERROR_FS));
-
-	if (ext3_journal_current_handle())
-		goto out_fail;
-
-	trace_ext3_writeback_writepage(page);
-	if (page_has_buffers(page)) {
-		if (!walk_page_buffers(NULL, page_buffers(page), 0,
-				      PAGE_CACHE_SIZE, NULL, buffer_unmapped)) {
-			/* Provide NULL get_block() to catch bugs if buffers
-			 * weren't really mapped */
-			return block_write_full_page(page, NULL, wbc);
-		}
-	}
-
-	handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode));
-	if (IS_ERR(handle)) {
-		ret = PTR_ERR(handle);
-		goto out_fail;
-	}
-
-	ret = block_write_full_page(page, ext3_get_block, wbc);
-
-	err = ext3_journal_stop(handle);
-	if (!ret)
-		ret = err;
-	return ret;
-
-out_fail:
-	redirty_page_for_writepage(wbc, page);
-	unlock_page(page);
-	return ret;
-}
-
-static int ext3_journalled_writepage(struct page *page,
-				struct writeback_control *wbc)
-{
-	struct inode *inode = page->mapping->host;
-	handle_t *handle = NULL;
-	int ret = 0;
-	int err;
-
-	J_ASSERT(PageLocked(page));
-	/*
-	 * We don't want to warn for emergency remount. The condition is
-	 * ordered to avoid dereferencing inode->i_sb in non-error case to
-	 * avoid slow-downs.
-	 */
-	WARN_ON_ONCE(IS_RDONLY(inode) &&
-		     !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ERROR_FS));
-
-	trace_ext3_journalled_writepage(page);
-	if (!page_has_buffers(page) || PageChecked(page)) {
-		if (ext3_journal_current_handle())
-			goto no_write;
-
-		handle = ext3_journal_start(inode,
-					    ext3_writepage_trans_blocks(inode));
-		if (IS_ERR(handle)) {
-			ret = PTR_ERR(handle);
-			goto no_write;
-		}
-		/*
-		 * It's mmapped pagecache.  Add buffers and journal it.  There
-		 * doesn't seem much point in redirtying the page here.
-		 */
-		ClearPageChecked(page);
-		ret = __block_write_begin(page, 0, PAGE_CACHE_SIZE,
-					  ext3_get_block);
-		if (ret != 0) {
-			ext3_journal_stop(handle);
-			goto out_unlock;
-		}
-		ret = walk_page_buffers(handle, page_buffers(page), 0,
-			PAGE_CACHE_SIZE, NULL, do_journal_get_write_access);
-
-		err = walk_page_buffers(handle, page_buffers(page), 0,
-				PAGE_CACHE_SIZE, NULL, write_end_fn);
-		if (ret == 0)
-			ret = err;
-		ext3_set_inode_state(inode, EXT3_STATE_JDATA);
-		atomic_set(&EXT3_I(inode)->i_datasync_tid,
-			   handle->h_transaction->t_tid);
-		unlock_page(page);
-		err = ext3_journal_stop(handle);
-		if (!ret)
-			ret = err;
-	} else {
-		/*
-		 * It is a page full of checkpoint-mode buffers. Go and write
-		 * them. They should have been already mapped when they went
-		 * to the journal so provide NULL get_block function to catch
-		 * errors.
-		 */
-		ret = block_write_full_page(page, NULL, wbc);
-	}
-out:
-	return ret;
-
-no_write:
-	redirty_page_for_writepage(wbc, page);
-out_unlock:
-	unlock_page(page);
-	goto out;
-}
-
-static int ext3_readpage(struct file *file, struct page *page)
-{
-	trace_ext3_readpage(page);
-	return mpage_readpage(page, ext3_get_block);
-}
-
-static int
-ext3_readpages(struct file *file, struct address_space *mapping,
-		struct list_head *pages, unsigned nr_pages)
-{
-	return mpage_readpages(mapping, pages, nr_pages, ext3_get_block);
-}
-
-static void ext3_invalidatepage(struct page *page, unsigned int offset,
-				unsigned int length)
-{
-	journal_t *journal = EXT3_JOURNAL(page->mapping->host);
-
-	trace_ext3_invalidatepage(page, offset, length);
-
-	/*
-	 * If it's a full truncate we just forget about the pending dirtying
-	 */
-	if (offset == 0 && length == PAGE_CACHE_SIZE)
-		ClearPageChecked(page);
-
-	journal_invalidatepage(journal, page, offset, length);
-}
-
-static int ext3_releasepage(struct page *page, gfp_t wait)
-{
-	journal_t *journal = EXT3_JOURNAL(page->mapping->host);
-
-	trace_ext3_releasepage(page);
-	WARN_ON(PageChecked(page));
-	if (!page_has_buffers(page))
-		return 0;
-	return journal_try_to_free_buffers(journal, page, wait);
-}
-
-/*
- * If the O_DIRECT write will extend the file then add this inode to the
- * orphan list.  So recovery will truncate it back to the original size
- * if the machine crashes during the write.
- *
- * If the O_DIRECT write is intantiating holes inside i_size and the machine
- * crashes then stale disk data _may_ be exposed inside the file. But current
- * VFS code falls back into buffered path in that case so we are safe.
- */
-static ssize_t ext3_direct_IO(struct kiocb *iocb, struct iov_iter *iter,
-			      loff_t offset)
-{
-	struct file *file = iocb->ki_filp;
-	struct inode *inode = file->f_mapping->host;
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	handle_t *handle;
-	ssize_t ret;
-	int orphan = 0;
-	size_t count = iov_iter_count(iter);
-	int retries = 0;
-
-	trace_ext3_direct_IO_enter(inode, offset, count, iov_iter_rw(iter));
-
-	if (iov_iter_rw(iter) == WRITE) {
-		loff_t final_size = offset + count;
-
-		if (final_size > inode->i_size) {
-			/* Credits for sb + inode write */
-			handle = ext3_journal_start(inode, 2);
-			if (IS_ERR(handle)) {
-				ret = PTR_ERR(handle);
-				goto out;
-			}
-			ret = ext3_orphan_add(handle, inode);
-			if (ret) {
-				ext3_journal_stop(handle);
-				goto out;
-			}
-			orphan = 1;
-			ei->i_disksize = inode->i_size;
-			ext3_journal_stop(handle);
-		}
-	}
-
-retry:
-	ret = blockdev_direct_IO(iocb, inode, iter, offset, ext3_get_block);
-	/*
-	 * In case of error extending write may have instantiated a few
-	 * blocks outside i_size. Trim these off again.
-	 */
-	if (unlikely(iov_iter_rw(iter) == WRITE && ret < 0)) {
-		loff_t isize = i_size_read(inode);
-		loff_t end = offset + count;
-
-		if (end > isize)
-			ext3_truncate_failed_direct_write(inode);
-	}
-	if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries))
-		goto retry;
-
-	if (orphan) {
-		int err;
-
-		/* Credits for sb + inode write */
-		handle = ext3_journal_start(inode, 2);
-		if (IS_ERR(handle)) {
-			/* This is really bad luck. We've written the data
-			 * but cannot extend i_size. Truncate allocated blocks
-			 * and pretend the write failed... */
-			ext3_truncate_failed_direct_write(inode);
-			ret = PTR_ERR(handle);
-			if (inode->i_nlink)
-				ext3_orphan_del(NULL, inode);
-			goto out;
-		}
-		if (inode->i_nlink)
-			ext3_orphan_del(handle, inode);
-		if (ret > 0) {
-			loff_t end = offset + ret;
-			if (end > inode->i_size) {
-				ei->i_disksize = end;
-				i_size_write(inode, end);
-				/*
-				 * We're going to return a positive `ret'
-				 * here due to non-zero-length I/O, so there's
-				 * no way of reporting error returns from
-				 * ext3_mark_inode_dirty() to userspace.  So
-				 * ignore it.
-				 */
-				ext3_mark_inode_dirty(handle, inode);
-			}
-		}
-		err = ext3_journal_stop(handle);
-		if (ret == 0)
-			ret = err;
-	}
-out:
-	trace_ext3_direct_IO_exit(inode, offset, count, iov_iter_rw(iter), ret);
-	return ret;
-}
-
-/*
- * Pages can be marked dirty completely asynchronously from ext3's journalling
- * activity.  By filemap_sync_pte(), try_to_unmap_one(), etc.  We cannot do
- * much here because ->set_page_dirty is called under VFS locks.  The page is
- * not necessarily locked.
- *
- * We cannot just dirty the page and leave attached buffers clean, because the
- * buffers' dirty state is "definitive".  We cannot just set the buffers dirty
- * or jbddirty because all the journalling code will explode.
- *
- * So what we do is to mark the page "pending dirty" and next time writepage
- * is called, propagate that into the buffers appropriately.
- */
-static int ext3_journalled_set_page_dirty(struct page *page)
-{
-	SetPageChecked(page);
-	return __set_page_dirty_nobuffers(page);
-}
-
-static const struct address_space_operations ext3_ordered_aops = {
-	.readpage		= ext3_readpage,
-	.readpages		= ext3_readpages,
-	.writepage		= ext3_ordered_writepage,
-	.write_begin		= ext3_write_begin,
-	.write_end		= ext3_ordered_write_end,
-	.bmap			= ext3_bmap,
-	.invalidatepage		= ext3_invalidatepage,
-	.releasepage		= ext3_releasepage,
-	.direct_IO		= ext3_direct_IO,
-	.migratepage		= buffer_migrate_page,
-	.is_partially_uptodate  = block_is_partially_uptodate,
-	.is_dirty_writeback	= buffer_check_dirty_writeback,
-	.error_remove_page	= generic_error_remove_page,
-};
-
-static const struct address_space_operations ext3_writeback_aops = {
-	.readpage		= ext3_readpage,
-	.readpages		= ext3_readpages,
-	.writepage		= ext3_writeback_writepage,
-	.write_begin		= ext3_write_begin,
-	.write_end		= ext3_writeback_write_end,
-	.bmap			= ext3_bmap,
-	.invalidatepage		= ext3_invalidatepage,
-	.releasepage		= ext3_releasepage,
-	.direct_IO		= ext3_direct_IO,
-	.migratepage		= buffer_migrate_page,
-	.is_partially_uptodate  = block_is_partially_uptodate,
-	.error_remove_page	= generic_error_remove_page,
-};
-
-static const struct address_space_operations ext3_journalled_aops = {
-	.readpage		= ext3_readpage,
-	.readpages		= ext3_readpages,
-	.writepage		= ext3_journalled_writepage,
-	.write_begin		= ext3_write_begin,
-	.write_end		= ext3_journalled_write_end,
-	.set_page_dirty		= ext3_journalled_set_page_dirty,
-	.bmap			= ext3_bmap,
-	.invalidatepage		= ext3_invalidatepage,
-	.releasepage		= ext3_releasepage,
-	.is_partially_uptodate  = block_is_partially_uptodate,
-	.error_remove_page	= generic_error_remove_page,
-};
-
-void ext3_set_aops(struct inode *inode)
-{
-	if (ext3_should_order_data(inode))
-		inode->i_mapping->a_ops = &ext3_ordered_aops;
-	else if (ext3_should_writeback_data(inode))
-		inode->i_mapping->a_ops = &ext3_writeback_aops;
-	else
-		inode->i_mapping->a_ops = &ext3_journalled_aops;
-}
-
-/*
- * ext3_block_truncate_page() zeroes out a mapping from file offset `from'
- * up to the end of the block which corresponds to `from'.
- * This required during truncate. We need to physically zero the tail end
- * of that block so it doesn't yield old data if the file is later grown.
- */
-static int ext3_block_truncate_page(struct inode *inode, loff_t from)
-{
-	ext3_fsblk_t index = from >> PAGE_CACHE_SHIFT;
-	unsigned offset = from & (PAGE_CACHE_SIZE - 1);
-	unsigned blocksize, iblock, length, pos;
-	struct page *page;
-	handle_t *handle = NULL;
-	struct buffer_head *bh;
-	int err = 0;
-
-	/* Truncated on block boundary - nothing to do */
-	blocksize = inode->i_sb->s_blocksize;
-	if ((from & (blocksize - 1)) == 0)
-		return 0;
-
-	page = grab_cache_page(inode->i_mapping, index);
-	if (!page)
-		return -ENOMEM;
-	length = blocksize - (offset & (blocksize - 1));
-	iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
-
-	if (!page_has_buffers(page))
-		create_empty_buffers(page, blocksize, 0);
-
-	/* Find the buffer that contains "offset" */
-	bh = page_buffers(page);
-	pos = blocksize;
-	while (offset >= pos) {
-		bh = bh->b_this_page;
-		iblock++;
-		pos += blocksize;
-	}
-
-	err = 0;
-	if (buffer_freed(bh)) {
-		BUFFER_TRACE(bh, "freed: skip");
-		goto unlock;
-	}
-
-	if (!buffer_mapped(bh)) {
-		BUFFER_TRACE(bh, "unmapped");
-		ext3_get_block(inode, iblock, bh, 0);
-		/* unmapped? It's a hole - nothing to do */
-		if (!buffer_mapped(bh)) {
-			BUFFER_TRACE(bh, "still unmapped");
-			goto unlock;
-		}
-	}
-
-	/* Ok, it's mapped. Make sure it's up-to-date */
-	if (PageUptodate(page))
-		set_buffer_uptodate(bh);
-
-	if (!bh_uptodate_or_lock(bh)) {
-		err = bh_submit_read(bh);
-		/* Uhhuh. Read error. Complain and punt. */
-		if (err)
-			goto unlock;
-	}
-
-	/* data=writeback mode doesn't need transaction to zero-out data */
-	if (!ext3_should_writeback_data(inode)) {
-		/* We journal at most one block */
-		handle = ext3_journal_start(inode, 1);
-		if (IS_ERR(handle)) {
-			clear_highpage(page);
-			flush_dcache_page(page);
-			err = PTR_ERR(handle);
-			goto unlock;
-		}
-	}
-
-	if (ext3_should_journal_data(inode)) {
-		BUFFER_TRACE(bh, "get write access");
-		err = ext3_journal_get_write_access(handle, bh);
-		if (err)
-			goto stop;
-	}
-
-	zero_user(page, offset, length);
-	BUFFER_TRACE(bh, "zeroed end of block");
-
-	err = 0;
-	if (ext3_should_journal_data(inode)) {
-		err = ext3_journal_dirty_metadata(handle, bh);
-	} else {
-		if (ext3_should_order_data(inode))
-			err = ext3_journal_dirty_data(handle, bh);
-		mark_buffer_dirty(bh);
-	}
-stop:
-	if (handle)
-		ext3_journal_stop(handle);
-
-unlock:
-	unlock_page(page);
-	page_cache_release(page);
-	return err;
-}
-
-/*
- * Probably it should be a library function... search for first non-zero word
- * or memcmp with zero_page, whatever is better for particular architecture.
- * Linus?
- */
-static inline int all_zeroes(__le32 *p, __le32 *q)
-{
-	while (p < q)
-		if (*p++)
-			return 0;
-	return 1;
-}
-
-/**
- *	ext3_find_shared - find the indirect blocks for partial truncation.
- *	@inode:	  inode in question
- *	@depth:	  depth of the affected branch
- *	@offsets: offsets of pointers in that branch (see ext3_block_to_path)
- *	@chain:	  place to store the pointers to partial indirect blocks
- *	@top:	  place to the (detached) top of branch
- *
- *	This is a helper function used by ext3_truncate().
- *
- *	When we do truncate() we may have to clean the ends of several
- *	indirect blocks but leave the blocks themselves alive. Block is
- *	partially truncated if some data below the new i_size is referred
- *	from it (and it is on the path to the first completely truncated
- *	data block, indeed).  We have to free the top of that path along
- *	with everything to the right of the path. Since no allocation
- *	past the truncation point is possible until ext3_truncate()
- *	finishes, we may safely do the latter, but top of branch may
- *	require special attention - pageout below the truncation point
- *	might try to populate it.
- *
- *	We atomically detach the top of branch from the tree, store the
- *	block number of its root in *@top, pointers to buffer_heads of
- *	partially truncated blocks - in @chain[].bh and pointers to
- *	their last elements that should not be removed - in
- *	@chain[].p. Return value is the pointer to last filled element
- *	of @chain.
- *
- *	The work left to caller to do the actual freeing of subtrees:
- *		a) free the subtree starting from *@top
- *		b) free the subtrees whose roots are stored in
- *			(@chain[i].p+1 .. end of @chain[i].bh->b_data)
- *		c) free the subtrees growing from the inode past the @chain[0].
- *			(no partially truncated stuff there).  */
-
-static Indirect *ext3_find_shared(struct inode *inode, int depth,
-			int offsets[4], Indirect chain[4], __le32 *top)
-{
-	Indirect *partial, *p;
-	int k, err;
-
-	*top = 0;
-	/* Make k index the deepest non-null offset + 1 */
-	for (k = depth; k > 1 && !offsets[k-1]; k--)
-		;
-	partial = ext3_get_branch(inode, k, offsets, chain, &err);
-	/* Writer: pointers */
-	if (!partial)
-		partial = chain + k-1;
-	/*
-	 * If the branch acquired continuation since we've looked at it -
-	 * fine, it should all survive and (new) top doesn't belong to us.
-	 */
-	if (!partial->key && *partial->p)
-		/* Writer: end */
-		goto no_top;
-	for (p=partial; p>chain && all_zeroes((__le32*)p->bh->b_data,p->p); p--)
-		;
-	/*
-	 * OK, we've found the last block that must survive. The rest of our
-	 * branch should be detached before unlocking. However, if that rest
-	 * of branch is all ours and does not grow immediately from the inode
-	 * it's easier to cheat and just decrement partial->p.
-	 */
-	if (p == chain + k - 1 && p > chain) {
-		p->p--;
-	} else {
-		*top = *p->p;
-		/* Nope, don't do this in ext3.  Must leave the tree intact */
-#if 0
-		*p->p = 0;
-#endif
-	}
-	/* Writer: end */
-
-	while(partial > p) {
-		brelse(partial->bh);
-		partial--;
-	}
-no_top:
-	return partial;
-}
-
-/*
- * Zero a number of block pointers in either an inode or an indirect block.
- * If we restart the transaction we must again get write access to the
- * indirect block for further modification.
- *
- * We release `count' blocks on disk, but (last - first) may be greater
- * than `count' because there can be holes in there.
- */
-static void ext3_clear_blocks(handle_t *handle, struct inode *inode,
-		struct buffer_head *bh, ext3_fsblk_t block_to_free,
-		unsigned long count, __le32 *first, __le32 *last)
-{
-	__le32 *p;
-	if (try_to_extend_transaction(handle, inode)) {
-		if (bh) {
-			BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
-			if (ext3_journal_dirty_metadata(handle, bh))
-				return;
-		}
-		ext3_mark_inode_dirty(handle, inode);
-		truncate_restart_transaction(handle, inode);
-		if (bh) {
-			BUFFER_TRACE(bh, "retaking write access");
-			if (ext3_journal_get_write_access(handle, bh))
-				return;
-		}
-	}
-
-	/*
-	 * Any buffers which are on the journal will be in memory. We find
-	 * them on the hash table so journal_revoke() will run journal_forget()
-	 * on them.  We've already detached each block from the file, so
-	 * bforget() in journal_forget() should be safe.
-	 *
-	 * AKPM: turn on bforget in journal_forget()!!!
-	 */
-	for (p = first; p < last; p++) {
-		u32 nr = le32_to_cpu(*p);
-		if (nr) {
-			struct buffer_head *bh;
-
-			*p = 0;
-			bh = sb_find_get_block(inode->i_sb, nr);
-			ext3_forget(handle, 0, inode, bh, nr);
-		}
-	}
-
-	ext3_free_blocks(handle, inode, block_to_free, count);
-}
-
-/**
- * ext3_free_data - free a list of data blocks
- * @handle:	handle for this transaction
- * @inode:	inode we are dealing with
- * @this_bh:	indirect buffer_head which contains *@first and *@last
- * @first:	array of block numbers
- * @last:	points immediately past the end of array
- *
- * We are freeing all blocks referred from that array (numbers are stored as
- * little-endian 32-bit) and updating @inode->i_blocks appropriately.
- *
- * We accumulate contiguous runs of blocks to free.  Conveniently, if these
- * blocks are contiguous then releasing them at one time will only affect one
- * or two bitmap blocks (+ group descriptor(s) and superblock) and we won't
- * actually use a lot of journal space.
- *
- * @this_bh will be %NULL if @first and @last point into the inode's direct
- * block pointers.
- */
-static void ext3_free_data(handle_t *handle, struct inode *inode,
-			   struct buffer_head *this_bh,
-			   __le32 *first, __le32 *last)
-{
-	ext3_fsblk_t block_to_free = 0;    /* Starting block # of a run */
-	unsigned long count = 0;	    /* Number of blocks in the run */
-	__le32 *block_to_free_p = NULL;	    /* Pointer into inode/ind
-					       corresponding to
-					       block_to_free */
-	ext3_fsblk_t nr;		    /* Current block # */
-	__le32 *p;			    /* Pointer into inode/ind
-					       for current block */
-	int err;
-
-	if (this_bh) {				/* For indirect block */
-		BUFFER_TRACE(this_bh, "get_write_access");
-		err = ext3_journal_get_write_access(handle, this_bh);
-		/* Important: if we can't update the indirect pointers
-		 * to the blocks, we can't free them. */
-		if (err)
-			return;
-	}
-
-	for (p = first; p < last; p++) {
-		nr = le32_to_cpu(*p);
-		if (nr) {
-			/* accumulate blocks to free if they're contiguous */
-			if (count == 0) {
-				block_to_free = nr;
-				block_to_free_p = p;
-				count = 1;
-			} else if (nr == block_to_free + count) {
-				count++;
-			} else {
-				ext3_clear_blocks(handle, inode, this_bh,
-						  block_to_free,
-						  count, block_to_free_p, p);
-				block_to_free = nr;
-				block_to_free_p = p;
-				count = 1;
-			}
-		}
-	}
-
-	if (count > 0)
-		ext3_clear_blocks(handle, inode, this_bh, block_to_free,
-				  count, block_to_free_p, p);
-
-	if (this_bh) {
-		BUFFER_TRACE(this_bh, "call ext3_journal_dirty_metadata");
-
-		/*
-		 * The buffer head should have an attached journal head at this
-		 * point. However, if the data is corrupted and an indirect
-		 * block pointed to itself, it would have been detached when
-		 * the block was cleared. Check for this instead of OOPSing.
-		 */
-		if (bh2jh(this_bh))
-			ext3_journal_dirty_metadata(handle, this_bh);
-		else
-			ext3_error(inode->i_sb, "ext3_free_data",
-				   "circular indirect block detected, "
-				   "inode=%lu, block=%llu",
-				   inode->i_ino,
-				   (unsigned long long)this_bh->b_blocknr);
-	}
-}
-
-/**
- *	ext3_free_branches - free an array of branches
- *	@handle: JBD handle for this transaction
- *	@inode:	inode we are dealing with
- *	@parent_bh: the buffer_head which contains *@first and *@last
- *	@first:	array of block numbers
- *	@last:	pointer immediately past the end of array
- *	@depth:	depth of the branches to free
- *
- *	We are freeing all blocks referred from these branches (numbers are
- *	stored as little-endian 32-bit) and updating @inode->i_blocks
- *	appropriately.
- */
-static void ext3_free_branches(handle_t *handle, struct inode *inode,
-			       struct buffer_head *parent_bh,
-			       __le32 *first, __le32 *last, int depth)
-{
-	ext3_fsblk_t nr;
-	__le32 *p;
-
-	if (is_handle_aborted(handle))
-		return;
-
-	if (depth--) {
-		struct buffer_head *bh;
-		int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb);
-		p = last;
-		while (--p >= first) {
-			nr = le32_to_cpu(*p);
-			if (!nr)
-				continue;		/* A hole */
-
-			/* Go read the buffer for the next level down */
-			bh = sb_bread(inode->i_sb, nr);
-
-			/*
-			 * A read failure? Report error and clear slot
-			 * (should be rare).
-			 */
-			if (!bh) {
-				ext3_error(inode->i_sb, "ext3_free_branches",
-					   "Read failure, inode=%lu, block="E3FSBLK,
-					   inode->i_ino, nr);
-				continue;
-			}
-
-			/* This zaps the entire block.  Bottom up. */
-			BUFFER_TRACE(bh, "free child branches");
-			ext3_free_branches(handle, inode, bh,
-					   (__le32*)bh->b_data,
-					   (__le32*)bh->b_data + addr_per_block,
-					   depth);
-
-			/*
-			 * Everything below this this pointer has been
-			 * released.  Now let this top-of-subtree go.
-			 *
-			 * We want the freeing of this indirect block to be
-			 * atomic in the journal with the updating of the
-			 * bitmap block which owns it.  So make some room in
-			 * the journal.
-			 *
-			 * We zero the parent pointer *after* freeing its
-			 * pointee in the bitmaps, so if extend_transaction()
-			 * for some reason fails to put the bitmap changes and
-			 * the release into the same transaction, recovery
-			 * will merely complain about releasing a free block,
-			 * rather than leaking blocks.
-			 */
-			if (is_handle_aborted(handle))
-				return;
-			if (try_to_extend_transaction(handle, inode)) {
-				ext3_mark_inode_dirty(handle, inode);
-				truncate_restart_transaction(handle, inode);
-			}
-
-			/*
-			 * We've probably journalled the indirect block several
-			 * times during the truncate.  But it's no longer
-			 * needed and we now drop it from the transaction via
-			 * journal_revoke().
-			 *
-			 * That's easy if it's exclusively part of this
-			 * transaction.  But if it's part of the committing
-			 * transaction then journal_forget() will simply
-			 * brelse() it.  That means that if the underlying
-			 * block is reallocated in ext3_get_block(),
-			 * unmap_underlying_metadata() will find this block
-			 * and will try to get rid of it.  damn, damn. Thus
-			 * we don't allow a block to be reallocated until
-			 * a transaction freeing it has fully committed.
-			 *
-			 * We also have to make sure journal replay after a
-			 * crash does not overwrite non-journaled data blocks
-			 * with old metadata when the block got reallocated for
-			 * data.  Thus we have to store a revoke record for a
-			 * block in the same transaction in which we free the
-			 * block.
-			 */
-			ext3_forget(handle, 1, inode, bh, bh->b_blocknr);
-
-			ext3_free_blocks(handle, inode, nr, 1);
-
-			if (parent_bh) {
-				/*
-				 * The block which we have just freed is
-				 * pointed to by an indirect block: journal it
-				 */
-				BUFFER_TRACE(parent_bh, "get_write_access");
-				if (!ext3_journal_get_write_access(handle,
-								   parent_bh)){
-					*p = 0;
-					BUFFER_TRACE(parent_bh,
-					"call ext3_journal_dirty_metadata");
-					ext3_journal_dirty_metadata(handle,
-								    parent_bh);
-				}
-			}
-		}
-	} else {
-		/* We have reached the bottom of the tree. */
-		BUFFER_TRACE(parent_bh, "free data blocks");
-		ext3_free_data(handle, inode, parent_bh, first, last);
-	}
-}
-
-int ext3_can_truncate(struct inode *inode)
-{
-	if (S_ISREG(inode->i_mode))
-		return 1;
-	if (S_ISDIR(inode->i_mode))
-		return 1;
-	if (S_ISLNK(inode->i_mode))
-		return !ext3_inode_is_fast_symlink(inode);
-	return 0;
-}
-
-/*
- * ext3_truncate()
- *
- * We block out ext3_get_block() block instantiations across the entire
- * transaction, and VFS/VM ensures that ext3_truncate() cannot run
- * simultaneously on behalf of the same inode.
- *
- * As we work through the truncate and commit bits of it to the journal there
- * is one core, guiding principle: the file's tree must always be consistent on
- * disk.  We must be able to restart the truncate after a crash.
- *
- * The file's tree may be transiently inconsistent in memory (although it
- * probably isn't), but whenever we close off and commit a journal transaction,
- * the contents of (the filesystem + the journal) must be consistent and
- * restartable.  It's pretty simple, really: bottom up, right to left (although
- * left-to-right works OK too).
- *
- * Note that at recovery time, journal replay occurs *before* the restart of
- * truncate against the orphan inode list.
- *
- * The committed inode has the new, desired i_size (which is the same as
- * i_disksize in this case).  After a crash, ext3_orphan_cleanup() will see
- * that this inode's truncate did not complete and it will again call
- * ext3_truncate() to have another go.  So there will be instantiated blocks
- * to the right of the truncation point in a crashed ext3 filesystem.  But
- * that's fine - as long as they are linked from the inode, the post-crash
- * ext3_truncate() run will find them and release them.
- */
-void ext3_truncate(struct inode *inode)
-{
-	handle_t *handle;
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	__le32 *i_data = ei->i_data;
-	int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb);
-	int offsets[4];
-	Indirect chain[4];
-	Indirect *partial;
-	__le32 nr = 0;
-	int n;
-	long last_block;
-	unsigned blocksize = inode->i_sb->s_blocksize;
-
-	trace_ext3_truncate_enter(inode);
-
-	if (!ext3_can_truncate(inode))
-		goto out_notrans;
-
-	if (inode->i_size == 0 && ext3_should_writeback_data(inode))
-		ext3_set_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE);
-
-	handle = start_transaction(inode);
-	if (IS_ERR(handle))
-		goto out_notrans;
-
-	last_block = (inode->i_size + blocksize-1)
-					>> EXT3_BLOCK_SIZE_BITS(inode->i_sb);
-	n = ext3_block_to_path(inode, last_block, offsets, NULL);
-	if (n == 0)
-		goto out_stop;	/* error */
-
-	/*
-	 * OK.  This truncate is going to happen.  We add the inode to the
-	 * orphan list, so that if this truncate spans multiple transactions,
-	 * and we crash, we will resume the truncate when the filesystem
-	 * recovers.  It also marks the inode dirty, to catch the new size.
-	 *
-	 * Implication: the file must always be in a sane, consistent
-	 * truncatable state while each transaction commits.
-	 */
-	if (ext3_orphan_add(handle, inode))
-		goto out_stop;
-
-	/*
-	 * The orphan list entry will now protect us from any crash which
-	 * occurs before the truncate completes, so it is now safe to propagate
-	 * the new, shorter inode size (held for now in i_size) into the
-	 * on-disk inode. We do this via i_disksize, which is the value which
-	 * ext3 *really* writes onto the disk inode.
-	 */
-	ei->i_disksize = inode->i_size;
-
-	/*
-	 * From here we block out all ext3_get_block() callers who want to
-	 * modify the block allocation tree.
-	 */
-	mutex_lock(&ei->truncate_mutex);
-
-	if (n == 1) {		/* direct blocks */
-		ext3_free_data(handle, inode, NULL, i_data+offsets[0],
-			       i_data + EXT3_NDIR_BLOCKS);
-		goto do_indirects;
-	}
-
-	partial = ext3_find_shared(inode, n, offsets, chain, &nr);
-	/* Kill the top of shared branch (not detached) */
-	if (nr) {
-		if (partial == chain) {
-			/* Shared branch grows from the inode */
-			ext3_free_branches(handle, inode, NULL,
-					   &nr, &nr+1, (chain+n-1) - partial);
-			*partial->p = 0;
-			/*
-			 * We mark the inode dirty prior to restart,
-			 * and prior to stop.  No need for it here.
-			 */
-		} else {
-			/* Shared branch grows from an indirect block */
-			ext3_free_branches(handle, inode, partial->bh,
-					partial->p,
-					partial->p+1, (chain+n-1) - partial);
-		}
-	}
-	/* Clear the ends of indirect blocks on the shared branch */
-	while (partial > chain) {
-		ext3_free_branches(handle, inode, partial->bh, partial->p + 1,
-				   (__le32*)partial->bh->b_data+addr_per_block,
-				   (chain+n-1) - partial);
-		BUFFER_TRACE(partial->bh, "call brelse");
-		brelse (partial->bh);
-		partial--;
-	}
-do_indirects:
-	/* Kill the remaining (whole) subtrees */
-	switch (offsets[0]) {
-	default:
-		nr = i_data[EXT3_IND_BLOCK];
-		if (nr) {
-			ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 1);
-			i_data[EXT3_IND_BLOCK] = 0;
-		}
-	case EXT3_IND_BLOCK:
-		nr = i_data[EXT3_DIND_BLOCK];
-		if (nr) {
-			ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 2);
-			i_data[EXT3_DIND_BLOCK] = 0;
-		}
-	case EXT3_DIND_BLOCK:
-		nr = i_data[EXT3_TIND_BLOCK];
-		if (nr) {
-			ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 3);
-			i_data[EXT3_TIND_BLOCK] = 0;
-		}
-	case EXT3_TIND_BLOCK:
-		;
-	}
-
-	ext3_discard_reservation(inode);
-
-	mutex_unlock(&ei->truncate_mutex);
-	inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
-	ext3_mark_inode_dirty(handle, inode);
-
-	/*
-	 * In a multi-transaction truncate, we only make the final transaction
-	 * synchronous
-	 */
-	if (IS_SYNC(inode))
-		handle->h_sync = 1;
-out_stop:
-	/*
-	 * If this was a simple ftruncate(), and the file will remain alive
-	 * then we need to clear up the orphan record which we created above.
-	 * However, if this was a real unlink then we were called by
-	 * ext3_evict_inode(), and we allow that function to clean up the
-	 * orphan info for us.
-	 */
-	if (inode->i_nlink)
-		ext3_orphan_del(handle, inode);
-
-	ext3_journal_stop(handle);
-	trace_ext3_truncate_exit(inode);
-	return;
-out_notrans:
-	/*
-	 * Delete the inode from orphan list so that it doesn't stay there
-	 * forever and trigger assertion on umount.
-	 */
-	if (inode->i_nlink)
-		ext3_orphan_del(NULL, inode);
-	trace_ext3_truncate_exit(inode);
-}
-
-static ext3_fsblk_t ext3_get_inode_block(struct super_block *sb,
-		unsigned long ino, struct ext3_iloc *iloc)
-{
-	unsigned long block_group;
-	unsigned long offset;
-	ext3_fsblk_t block;
-	struct ext3_group_desc *gdp;
-
-	if (!ext3_valid_inum(sb, ino)) {
-		/*
-		 * This error is already checked for in namei.c unless we are
-		 * looking at an NFS filehandle, in which case no error
-		 * report is needed
-		 */
-		return 0;
-	}
-
-	block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb);
-	gdp = ext3_get_group_desc(sb, block_group, NULL);
-	if (!gdp)
-		return 0;
-	/*
-	 * Figure out the offset within the block group inode table
-	 */
-	offset = ((ino - 1) % EXT3_INODES_PER_GROUP(sb)) *
-		EXT3_INODE_SIZE(sb);
-	block = le32_to_cpu(gdp->bg_inode_table) +
-		(offset >> EXT3_BLOCK_SIZE_BITS(sb));
-
-	iloc->block_group = block_group;
-	iloc->offset = offset & (EXT3_BLOCK_SIZE(sb) - 1);
-	return block;
-}
-
-/*
- * ext3_get_inode_loc returns with an extra refcount against the inode's
- * underlying buffer_head on success. If 'in_mem' is true, we have all
- * data in memory that is needed to recreate the on-disk version of this
- * inode.
- */
-static int __ext3_get_inode_loc(struct inode *inode,
-				struct ext3_iloc *iloc, int in_mem)
-{
-	ext3_fsblk_t block;
-	struct buffer_head *bh;
-
-	block = ext3_get_inode_block(inode->i_sb, inode->i_ino, iloc);
-	if (!block)
-		return -EIO;
-
-	bh = sb_getblk(inode->i_sb, block);
-	if (unlikely(!bh)) {
-		ext3_error (inode->i_sb, "ext3_get_inode_loc",
-				"unable to read inode block - "
-				"inode=%lu, block="E3FSBLK,
-				 inode->i_ino, block);
-		return -ENOMEM;
-	}
-	if (!buffer_uptodate(bh)) {
-		lock_buffer(bh);
-
-		/*
-		 * If the buffer has the write error flag, we have failed
-		 * to write out another inode in the same block.  In this
-		 * case, we don't have to read the block because we may
-		 * read the old inode data successfully.
-		 */
-		if (buffer_write_io_error(bh) && !buffer_uptodate(bh))
-			set_buffer_uptodate(bh);
-
-		if (buffer_uptodate(bh)) {
-			/* someone brought it uptodate while we waited */
-			unlock_buffer(bh);
-			goto has_buffer;
-		}
-
-		/*
-		 * If we have all information of the inode in memory and this
-		 * is the only valid inode in the block, we need not read the
-		 * block.
-		 */
-		if (in_mem) {
-			struct buffer_head *bitmap_bh;
-			struct ext3_group_desc *desc;
-			int inodes_per_buffer;
-			int inode_offset, i;
-			int block_group;
-			int start;
-
-			block_group = (inode->i_ino - 1) /
-					EXT3_INODES_PER_GROUP(inode->i_sb);
-			inodes_per_buffer = bh->b_size /
-				EXT3_INODE_SIZE(inode->i_sb);
-			inode_offset = ((inode->i_ino - 1) %
-					EXT3_INODES_PER_GROUP(inode->i_sb));
-			start = inode_offset & ~(inodes_per_buffer - 1);
-
-			/* Is the inode bitmap in cache? */
-			desc = ext3_get_group_desc(inode->i_sb,
-						block_group, NULL);
-			if (!desc)
-				goto make_io;
-
-			bitmap_bh = sb_getblk(inode->i_sb,
-					le32_to_cpu(desc->bg_inode_bitmap));
-			if (unlikely(!bitmap_bh))
-				goto make_io;
-
-			/*
-			 * If the inode bitmap isn't in cache then the
-			 * optimisation may end up performing two reads instead
-			 * of one, so skip it.
-			 */
-			if (!buffer_uptodate(bitmap_bh)) {
-				brelse(bitmap_bh);
-				goto make_io;
-			}
-			for (i = start; i < start + inodes_per_buffer; i++) {
-				if (i == inode_offset)
-					continue;
-				if (ext3_test_bit(i, bitmap_bh->b_data))
-					break;
-			}
-			brelse(bitmap_bh);
-			if (i == start + inodes_per_buffer) {
-				/* all other inodes are free, so skip I/O */
-				memset(bh->b_data, 0, bh->b_size);
-				set_buffer_uptodate(bh);
-				unlock_buffer(bh);
-				goto has_buffer;
-			}
-		}
-
-make_io:
-		/*
-		 * There are other valid inodes in the buffer, this inode
-		 * has in-inode xattrs, or we don't have this inode in memory.
-		 * Read the block from disk.
-		 */
-		trace_ext3_load_inode(inode);
-		get_bh(bh);
-		bh->b_end_io = end_buffer_read_sync;
-		submit_bh(READ | REQ_META | REQ_PRIO, bh);
-		wait_on_buffer(bh);
-		if (!buffer_uptodate(bh)) {
-			ext3_error(inode->i_sb, "ext3_get_inode_loc",
-					"unable to read inode block - "
-					"inode=%lu, block="E3FSBLK,
-					inode->i_ino, block);
-			brelse(bh);
-			return -EIO;
-		}
-	}
-has_buffer:
-	iloc->bh = bh;
-	return 0;
-}
-
-int ext3_get_inode_loc(struct inode *inode, struct ext3_iloc *iloc)
-{
-	/* We have all inode data except xattrs in memory here. */
-	return __ext3_get_inode_loc(inode, iloc,
-		!ext3_test_inode_state(inode, EXT3_STATE_XATTR));
-}
-
-void ext3_set_inode_flags(struct inode *inode)
-{
-	unsigned int flags = EXT3_I(inode)->i_flags;
-
-	inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
-	if (flags & EXT3_SYNC_FL)
-		inode->i_flags |= S_SYNC;
-	if (flags & EXT3_APPEND_FL)
-		inode->i_flags |= S_APPEND;
-	if (flags & EXT3_IMMUTABLE_FL)
-		inode->i_flags |= S_IMMUTABLE;
-	if (flags & EXT3_NOATIME_FL)
-		inode->i_flags |= S_NOATIME;
-	if (flags & EXT3_DIRSYNC_FL)
-		inode->i_flags |= S_DIRSYNC;
-}
-
-/* Propagate flags from i_flags to EXT3_I(inode)->i_flags */
-void ext3_get_inode_flags(struct ext3_inode_info *ei)
-{
-	unsigned int flags = ei->vfs_inode.i_flags;
-
-	ei->i_flags &= ~(EXT3_SYNC_FL|EXT3_APPEND_FL|
-			EXT3_IMMUTABLE_FL|EXT3_NOATIME_FL|EXT3_DIRSYNC_FL);
-	if (flags & S_SYNC)
-		ei->i_flags |= EXT3_SYNC_FL;
-	if (flags & S_APPEND)
-		ei->i_flags |= EXT3_APPEND_FL;
-	if (flags & S_IMMUTABLE)
-		ei->i_flags |= EXT3_IMMUTABLE_FL;
-	if (flags & S_NOATIME)
-		ei->i_flags |= EXT3_NOATIME_FL;
-	if (flags & S_DIRSYNC)
-		ei->i_flags |= EXT3_DIRSYNC_FL;
-}
-
-struct inode *ext3_iget(struct super_block *sb, unsigned long ino)
-{
-	struct ext3_iloc iloc;
-	struct ext3_inode *raw_inode;
-	struct ext3_inode_info *ei;
-	struct buffer_head *bh;
-	struct inode *inode;
-	journal_t *journal = EXT3_SB(sb)->s_journal;
-	transaction_t *transaction;
-	long ret;
-	int block;
-	uid_t i_uid;
-	gid_t i_gid;
-
-	inode = iget_locked(sb, ino);
-	if (!inode)
-		return ERR_PTR(-ENOMEM);
-	if (!(inode->i_state & I_NEW))
-		return inode;
-
-	ei = EXT3_I(inode);
-	ei->i_block_alloc_info = NULL;
-
-	ret = __ext3_get_inode_loc(inode, &iloc, 0);
-	if (ret < 0)
-		goto bad_inode;
-	bh = iloc.bh;
-	raw_inode = ext3_raw_inode(&iloc);
-	inode->i_mode = le16_to_cpu(raw_inode->i_mode);
-	i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
-	i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
-	if(!(test_opt (inode->i_sb, NO_UID32))) {
-		i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
-		i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
-	}
-	i_uid_write(inode, i_uid);
-	i_gid_write(inode, i_gid);
-	set_nlink(inode, le16_to_cpu(raw_inode->i_links_count));
-	inode->i_size = le32_to_cpu(raw_inode->i_size);
-	inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
-	inode->i_ctime.tv_sec = (signed)le32_to_cpu(raw_inode->i_ctime);
-	inode->i_mtime.tv_sec = (signed)le32_to_cpu(raw_inode->i_mtime);
-	inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec = inode->i_mtime.tv_nsec = 0;
-
-	ei->i_state_flags = 0;
-	ei->i_dir_start_lookup = 0;
-	ei->i_dtime = le32_to_cpu(raw_inode->i_dtime);
-	/* We now have enough fields to check if the inode was active or not.
-	 * This is needed because nfsd might try to access dead inodes
-	 * the test is that same one that e2fsck uses
-	 * NeilBrown 1999oct15
-	 */
-	if (inode->i_nlink == 0) {
-		if (inode->i_mode == 0 ||
-		    !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ORPHAN_FS)) {
-			/* this inode is deleted */
-			brelse (bh);
-			ret = -ESTALE;
-			goto bad_inode;
-		}
-		/* The only unlinked inodes we let through here have
-		 * valid i_mode and are being read by the orphan
-		 * recovery code: that's fine, we're about to complete
-		 * the process of deleting those. */
-	}
-	inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
-	ei->i_flags = le32_to_cpu(raw_inode->i_flags);
-#ifdef EXT3_FRAGMENTS
-	ei->i_faddr = le32_to_cpu(raw_inode->i_faddr);
-	ei->i_frag_no = raw_inode->i_frag;
-	ei->i_frag_size = raw_inode->i_fsize;
-#endif
-	ei->i_file_acl = le32_to_cpu(raw_inode->i_file_acl);
-	if (!S_ISREG(inode->i_mode)) {
-		ei->i_dir_acl = le32_to_cpu(raw_inode->i_dir_acl);
-	} else {
-		inode->i_size |=
-			((__u64)le32_to_cpu(raw_inode->i_size_high)) << 32;
-	}
-	ei->i_disksize = inode->i_size;
-	inode->i_generation = le32_to_cpu(raw_inode->i_generation);
-	ei->i_block_group = iloc.block_group;
-	/*
-	 * NOTE! The in-memory inode i_data array is in little-endian order
-	 * even on big-endian machines: we do NOT byteswap the block numbers!
-	 */
-	for (block = 0; block < EXT3_N_BLOCKS; block++)
-		ei->i_data[block] = raw_inode->i_block[block];
-	INIT_LIST_HEAD(&ei->i_orphan);
-
-	/*
-	 * Set transaction id's of transactions that have to be committed
-	 * to finish f[data]sync. We set them to currently running transaction
-	 * as we cannot be sure that the inode or some of its metadata isn't
-	 * part of the transaction - the inode could have been reclaimed and
-	 * now it is reread from disk.
-	 */
-	if (journal) {
-		tid_t tid;
-
-		spin_lock(&journal->j_state_lock);
-		if (journal->j_running_transaction)
-			transaction = journal->j_running_transaction;
-		else
-			transaction = journal->j_committing_transaction;
-		if (transaction)
-			tid = transaction->t_tid;
-		else
-			tid = journal->j_commit_sequence;
-		spin_unlock(&journal->j_state_lock);
-		atomic_set(&ei->i_sync_tid, tid);
-		atomic_set(&ei->i_datasync_tid, tid);
-	}
-
-	if (inode->i_ino >= EXT3_FIRST_INO(inode->i_sb) + 1 &&
-	    EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) {
-		/*
-		 * When mke2fs creates big inodes it does not zero out
-		 * the unused bytes above EXT3_GOOD_OLD_INODE_SIZE,
-		 * so ignore those first few inodes.
-		 */
-		ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize);
-		if (EXT3_GOOD_OLD_INODE_SIZE + ei->i_extra_isize >
-		    EXT3_INODE_SIZE(inode->i_sb)) {
-			brelse (bh);
-			ret = -EIO;
-			goto bad_inode;
-		}
-		if (ei->i_extra_isize == 0) {
-			/* The extra space is currently unused. Use it. */
-			ei->i_extra_isize = sizeof(struct ext3_inode) -
-					    EXT3_GOOD_OLD_INODE_SIZE;
-		} else {
-			__le32 *magic = (void *)raw_inode +
-					EXT3_GOOD_OLD_INODE_SIZE +
-					ei->i_extra_isize;
-			if (*magic == cpu_to_le32(EXT3_XATTR_MAGIC))
-				 ext3_set_inode_state(inode, EXT3_STATE_XATTR);
-		}
-	} else
-		ei->i_extra_isize = 0;
-
-	if (S_ISREG(inode->i_mode)) {
-		inode->i_op = &ext3_file_inode_operations;
-		inode->i_fop = &ext3_file_operations;
-		ext3_set_aops(inode);
-	} else if (S_ISDIR(inode->i_mode)) {
-		inode->i_op = &ext3_dir_inode_operations;
-		inode->i_fop = &ext3_dir_operations;
-	} else if (S_ISLNK(inode->i_mode)) {
-		if (ext3_inode_is_fast_symlink(inode)) {
-			inode->i_op = &ext3_fast_symlink_inode_operations;
-			nd_terminate_link(ei->i_data, inode->i_size,
-				sizeof(ei->i_data) - 1);
-			inode->i_link = (char *)ei->i_data;
-		} else {
-			inode->i_op = &ext3_symlink_inode_operations;
-			ext3_set_aops(inode);
-		}
-	} else {
-		inode->i_op = &ext3_special_inode_operations;
-		if (raw_inode->i_block[0])
-			init_special_inode(inode, inode->i_mode,
-			   old_decode_dev(le32_to_cpu(raw_inode->i_block[0])));
-		else
-			init_special_inode(inode, inode->i_mode,
-			   new_decode_dev(le32_to_cpu(raw_inode->i_block[1])));
-	}
-	brelse (iloc.bh);
-	ext3_set_inode_flags(inode);
-	unlock_new_inode(inode);
-	return inode;
-
-bad_inode:
-	iget_failed(inode);
-	return ERR_PTR(ret);
-}
-
-/*
- * Post the struct inode info into an on-disk inode location in the
- * buffer-cache.  This gobbles the caller's reference to the
- * buffer_head in the inode location struct.
- *
- * The caller must have write access to iloc->bh.
- */
-static int ext3_do_update_inode(handle_t *handle,
-				struct inode *inode,
-				struct ext3_iloc *iloc)
-{
-	struct ext3_inode *raw_inode = ext3_raw_inode(iloc);
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	struct buffer_head *bh = iloc->bh;
-	int err = 0, rc, block;
-	int need_datasync = 0;
-	__le32 disksize;
-	uid_t i_uid;
-	gid_t i_gid;
-
-again:
-	/* we can't allow multiple procs in here at once, its a bit racey */
-	lock_buffer(bh);
-
-	/* For fields not not tracking in the in-memory inode,
-	 * initialise them to zero for new inodes. */
-	if (ext3_test_inode_state(inode, EXT3_STATE_NEW))
-		memset(raw_inode, 0, EXT3_SB(inode->i_sb)->s_inode_size);
-
-	ext3_get_inode_flags(ei);
-	raw_inode->i_mode = cpu_to_le16(inode->i_mode);
-	i_uid = i_uid_read(inode);
-	i_gid = i_gid_read(inode);
-	if(!(test_opt(inode->i_sb, NO_UID32))) {
-		raw_inode->i_uid_low = cpu_to_le16(low_16_bits(i_uid));
-		raw_inode->i_gid_low = cpu_to_le16(low_16_bits(i_gid));
-/*
- * Fix up interoperability with old kernels. Otherwise, old inodes get
- * re-used with the upper 16 bits of the uid/gid intact
- */
-		if(!ei->i_dtime) {
-			raw_inode->i_uid_high =
-				cpu_to_le16(high_16_bits(i_uid));
-			raw_inode->i_gid_high =
-				cpu_to_le16(high_16_bits(i_gid));
-		} else {
-			raw_inode->i_uid_high = 0;
-			raw_inode->i_gid_high = 0;
-		}
-	} else {
-		raw_inode->i_uid_low =
-			cpu_to_le16(fs_high2lowuid(i_uid));
-		raw_inode->i_gid_low =
-			cpu_to_le16(fs_high2lowgid(i_gid));
-		raw_inode->i_uid_high = 0;
-		raw_inode->i_gid_high = 0;
-	}
-	raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
-	disksize = cpu_to_le32(ei->i_disksize);
-	if (disksize != raw_inode->i_size) {
-		need_datasync = 1;
-		raw_inode->i_size = disksize;
-	}
-	raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
-	raw_inode->i_ctime = cpu_to_le32(inode->i_ctime.tv_sec);
-	raw_inode->i_mtime = cpu_to_le32(inode->i_mtime.tv_sec);
-	raw_inode->i_blocks = cpu_to_le32(inode->i_blocks);
-	raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
-	raw_inode->i_flags = cpu_to_le32(ei->i_flags);
-#ifdef EXT3_FRAGMENTS
-	raw_inode->i_faddr = cpu_to_le32(ei->i_faddr);
-	raw_inode->i_frag = ei->i_frag_no;
-	raw_inode->i_fsize = ei->i_frag_size;
-#endif
-	raw_inode->i_file_acl = cpu_to_le32(ei->i_file_acl);
-	if (!S_ISREG(inode->i_mode)) {
-		raw_inode->i_dir_acl = cpu_to_le32(ei->i_dir_acl);
-	} else {
-		disksize = cpu_to_le32(ei->i_disksize >> 32);
-		if (disksize != raw_inode->i_size_high) {
-			raw_inode->i_size_high = disksize;
-			need_datasync = 1;
-		}
-		if (ei->i_disksize > 0x7fffffffULL) {
-			struct super_block *sb = inode->i_sb;
-			if (!EXT3_HAS_RO_COMPAT_FEATURE(sb,
-					EXT3_FEATURE_RO_COMPAT_LARGE_FILE) ||
-			    EXT3_SB(sb)->s_es->s_rev_level ==
-					cpu_to_le32(EXT3_GOOD_OLD_REV)) {
-			       /* If this is the first large file
-				* created, add a flag to the superblock.
-				*/
-				unlock_buffer(bh);
-				err = ext3_journal_get_write_access(handle,
-						EXT3_SB(sb)->s_sbh);
-				if (err)
-					goto out_brelse;
-
-				ext3_update_dynamic_rev(sb);
-				EXT3_SET_RO_COMPAT_FEATURE(sb,
-					EXT3_FEATURE_RO_COMPAT_LARGE_FILE);
-				handle->h_sync = 1;
-				err = ext3_journal_dirty_metadata(handle,
-						EXT3_SB(sb)->s_sbh);
-				/* get our lock and start over */
-				goto again;
-			}
-		}
-	}
-	raw_inode->i_generation = cpu_to_le32(inode->i_generation);
-	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
-		if (old_valid_dev(inode->i_rdev)) {
-			raw_inode->i_block[0] =
-				cpu_to_le32(old_encode_dev(inode->i_rdev));
-			raw_inode->i_block[1] = 0;
-		} else {
-			raw_inode->i_block[0] = 0;
-			raw_inode->i_block[1] =
-				cpu_to_le32(new_encode_dev(inode->i_rdev));
-			raw_inode->i_block[2] = 0;
-		}
-	} else for (block = 0; block < EXT3_N_BLOCKS; block++)
-		raw_inode->i_block[block] = ei->i_data[block];
-
-	if (ei->i_extra_isize)
-		raw_inode->i_extra_isize = cpu_to_le16(ei->i_extra_isize);
-
-	BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
-	unlock_buffer(bh);
-	rc = ext3_journal_dirty_metadata(handle, bh);
-	if (!err)
-		err = rc;
-	ext3_clear_inode_state(inode, EXT3_STATE_NEW);
-
-	atomic_set(&ei->i_sync_tid, handle->h_transaction->t_tid);
-	if (need_datasync)
-		atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid);
-out_brelse:
-	brelse (bh);
-	ext3_std_error(inode->i_sb, err);
-	return err;
-}
-
-/*
- * ext3_write_inode()
- *
- * We are called from a few places:
- *
- * - Within generic_file_aio_write() -> generic_write_sync() for O_SYNC files.
- *   Here, there will be no transaction running. We wait for any running
- *   transaction to commit.
- *
- * - Within flush work (for sys_sync(), kupdate and such).
- *   We wait on commit, if told to.
- *
- * - Within iput_final() -> write_inode_now()
- *   We wait on commit, if told to.
- *
- * In all cases it is actually safe for us to return without doing anything,
- * because the inode has been copied into a raw inode buffer in
- * ext3_mark_inode_dirty().  This is a correctness thing for WB_SYNC_ALL
- * writeback.
- *
- * Note that we are absolutely dependent upon all inode dirtiers doing the
- * right thing: they *must* call mark_inode_dirty() after dirtying info in
- * which we are interested.
- *
- * It would be a bug for them to not do this.  The code:
- *
- *	mark_inode_dirty(inode)
- *	stuff();
- *	inode->i_size = expr;
- *
- * is in error because write_inode() could occur while `stuff()' is running,
- * and the new i_size will be lost.  Plus the inode will no longer be on the
- * superblock's dirty inode list.
- */
-int ext3_write_inode(struct inode *inode, struct writeback_control *wbc)
-{
-	if (WARN_ON_ONCE(current->flags & PF_MEMALLOC))
-		return 0;
-
-	if (ext3_journal_current_handle()) {
-		jbd_debug(1, "called recursively, non-PF_MEMALLOC!\n");
-		dump_stack();
-		return -EIO;
-	}
-
-	/*
-	 * No need to force transaction in WB_SYNC_NONE mode. Also
-	 * ext3_sync_fs() will force the commit after everything is
-	 * written.
-	 */
-	if (wbc->sync_mode != WB_SYNC_ALL || wbc->for_sync)
-		return 0;
-
-	return ext3_force_commit(inode->i_sb);
-}
-
-/*
- * ext3_setattr()
- *
- * Called from notify_change.
- *
- * We want to trap VFS attempts to truncate the file as soon as
- * possible.  In particular, we want to make sure that when the VFS
- * shrinks i_size, we put the inode on the orphan list and modify
- * i_disksize immediately, so that during the subsequent flushing of
- * dirty pages and freeing of disk blocks, we can guarantee that any
- * commit will leave the blocks being flushed in an unused state on
- * disk.  (On recovery, the inode will get truncated and the blocks will
- * be freed, so we have a strong guarantee that no future commit will
- * leave these blocks visible to the user.)
- *
- * Called with inode->sem down.
- */
-int ext3_setattr(struct dentry *dentry, struct iattr *attr)
-{
-	struct inode *inode = d_inode(dentry);
-	int error, rc = 0;
-	const unsigned int ia_valid = attr->ia_valid;
-
-	error = inode_change_ok(inode, attr);
-	if (error)
-		return error;
-
-	if (is_quota_modification(inode, attr))
-		dquot_initialize(inode);
-	if ((ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, inode->i_uid)) ||
-	    (ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, inode->i_gid))) {
-		handle_t *handle;
-
-		/* (user+group)*(old+new) structure, inode write (sb,
-		 * inode block, ? - but truncate inode update has it) */
-		handle = ext3_journal_start(inode, EXT3_MAXQUOTAS_INIT_BLOCKS(inode->i_sb)+
-					EXT3_MAXQUOTAS_DEL_BLOCKS(inode->i_sb)+3);
-		if (IS_ERR(handle)) {
-			error = PTR_ERR(handle);
-			goto err_out;
-		}
-		error = dquot_transfer(inode, attr);
-		if (error) {
-			ext3_journal_stop(handle);
-			return error;
-		}
-		/* Update corresponding info in inode so that everything is in
-		 * one transaction */
-		if (attr->ia_valid & ATTR_UID)
-			inode->i_uid = attr->ia_uid;
-		if (attr->ia_valid & ATTR_GID)
-			inode->i_gid = attr->ia_gid;
-		error = ext3_mark_inode_dirty(handle, inode);
-		ext3_journal_stop(handle);
-	}
-
-	if (attr->ia_valid & ATTR_SIZE)
-		inode_dio_wait(inode);
-
-	if (S_ISREG(inode->i_mode) &&
-	    attr->ia_valid & ATTR_SIZE && attr->ia_size < inode->i_size) {
-		handle_t *handle;
-
-		handle = ext3_journal_start(inode, 3);
-		if (IS_ERR(handle)) {
-			error = PTR_ERR(handle);
-			goto err_out;
-		}
-
-		error = ext3_orphan_add(handle, inode);
-		if (error) {
-			ext3_journal_stop(handle);
-			goto err_out;
-		}
-		EXT3_I(inode)->i_disksize = attr->ia_size;
-		error = ext3_mark_inode_dirty(handle, inode);
-		ext3_journal_stop(handle);
-		if (error) {
-			/* Some hard fs error must have happened. Bail out. */
-			ext3_orphan_del(NULL, inode);
-			goto err_out;
-		}
-		rc = ext3_block_truncate_page(inode, attr->ia_size);
-		if (rc) {
-			/* Cleanup orphan list and exit */
-			handle = ext3_journal_start(inode, 3);
-			if (IS_ERR(handle)) {
-				ext3_orphan_del(NULL, inode);
-				goto err_out;
-			}
-			ext3_orphan_del(handle, inode);
-			ext3_journal_stop(handle);
-			goto err_out;
-		}
-	}
-
-	if ((attr->ia_valid & ATTR_SIZE) &&
-	    attr->ia_size != i_size_read(inode)) {
-		truncate_setsize(inode, attr->ia_size);
-		ext3_truncate(inode);
-	}
-
-	setattr_copy(inode, attr);
-	mark_inode_dirty(inode);
-
-	if (ia_valid & ATTR_MODE)
-		rc = posix_acl_chmod(inode, inode->i_mode);
-
-err_out:
-	ext3_std_error(inode->i_sb, error);
-	if (!error)
-		error = rc;
-	return error;
-}
-
-
-/*
- * How many blocks doth make a writepage()?
- *
- * With N blocks per page, it may be:
- * N data blocks
- * 2 indirect block
- * 2 dindirect
- * 1 tindirect
- * N+5 bitmap blocks (from the above)
- * N+5 group descriptor summary blocks
- * 1 inode block
- * 1 superblock.
- * 2 * EXT3_SINGLEDATA_TRANS_BLOCKS for the quote files
- *
- * 3 * (N + 5) + 2 + 2 * EXT3_SINGLEDATA_TRANS_BLOCKS
- *
- * With ordered or writeback data it's the same, less the N data blocks.
- *
- * If the inode's direct blocks can hold an integral number of pages then a
- * page cannot straddle two indirect blocks, and we can only touch one indirect
- * and dindirect block, and the "5" above becomes "3".
- *
- * This still overestimates under most circumstances.  If we were to pass the
- * start and end offsets in here as well we could do block_to_path() on each
- * block and work out the exact number of indirects which are touched.  Pah.
- */
-
-static int ext3_writepage_trans_blocks(struct inode *inode)
-{
-	int bpp = ext3_journal_blocks_per_page(inode);
-	int indirects = (EXT3_NDIR_BLOCKS % bpp) ? 5 : 3;
-	int ret;
-
-	if (ext3_should_journal_data(inode))
-		ret = 3 * (bpp + indirects) + 2;
-	else
-		ret = 2 * (bpp + indirects) + indirects + 2;
-
-#ifdef CONFIG_QUOTA
-	/* We know that structure was already allocated during dquot_initialize so
-	 * we will be updating only the data blocks + inodes */
-	ret += EXT3_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb);
-#endif
-
-	return ret;
-}
-
-/*
- * The caller must have previously called ext3_reserve_inode_write().
- * Give this, we know that the caller already has write access to iloc->bh.
- */
-int ext3_mark_iloc_dirty(handle_t *handle,
-		struct inode *inode, struct ext3_iloc *iloc)
-{
-	int err = 0;
-
-	/* the do_update_inode consumes one bh->b_count */
-	get_bh(iloc->bh);
-
-	/* ext3_do_update_inode() does journal_dirty_metadata */
-	err = ext3_do_update_inode(handle, inode, iloc);
-	put_bh(iloc->bh);
-	return err;
-}
-
-/*
- * On success, We end up with an outstanding reference count against
- * iloc->bh.  This _must_ be cleaned up later.
- */
-
-int
-ext3_reserve_inode_write(handle_t *handle, struct inode *inode,
-			 struct ext3_iloc *iloc)
-{
-	int err = 0;
-	if (handle) {
-		err = ext3_get_inode_loc(inode, iloc);
-		if (!err) {
-			BUFFER_TRACE(iloc->bh, "get_write_access");
-			err = ext3_journal_get_write_access(handle, iloc->bh);
-			if (err) {
-				brelse(iloc->bh);
-				iloc->bh = NULL;
-			}
-		}
-	}
-	ext3_std_error(inode->i_sb, err);
-	return err;
-}
-
-/*
- * What we do here is to mark the in-core inode as clean with respect to inode
- * dirtiness (it may still be data-dirty).
- * This means that the in-core inode may be reaped by prune_icache
- * without having to perform any I/O.  This is a very good thing,
- * because *any* task may call prune_icache - even ones which
- * have a transaction open against a different journal.
- *
- * Is this cheating?  Not really.  Sure, we haven't written the
- * inode out, but prune_icache isn't a user-visible syncing function.
- * Whenever the user wants stuff synced (sys_sync, sys_msync, sys_fsync)
- * we start and wait on commits.
- */
-int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode)
-{
-	struct ext3_iloc iloc;
-	int err;
-
-	might_sleep();
-	trace_ext3_mark_inode_dirty(inode, _RET_IP_);
-	err = ext3_reserve_inode_write(handle, inode, &iloc);
-	if (!err)
-		err = ext3_mark_iloc_dirty(handle, inode, &iloc);
-	return err;
-}
-
-/*
- * ext3_dirty_inode() is called from __mark_inode_dirty()
- *
- * We're really interested in the case where a file is being extended.
- * i_size has been changed by generic_commit_write() and we thus need
- * to include the updated inode in the current transaction.
- *
- * Also, dquot_alloc_space() will always dirty the inode when blocks
- * are allocated to the file.
- *
- * If the inode is marked synchronous, we don't honour that here - doing
- * so would cause a commit on atime updates, which we don't bother doing.
- * We handle synchronous inodes at the highest possible level.
- */
-void ext3_dirty_inode(struct inode *inode, int flags)
-{
-	handle_t *current_handle = ext3_journal_current_handle();
-	handle_t *handle;
-
-	handle = ext3_journal_start(inode, 2);
-	if (IS_ERR(handle))
-		goto out;
-	if (current_handle &&
-		current_handle->h_transaction != handle->h_transaction) {
-		/* This task has a transaction open against a different fs */
-		printk(KERN_EMERG "%s: transactions do not match!\n",
-		       __func__);
-	} else {
-		jbd_debug(5, "marking dirty.  outer handle=%p\n",
-				current_handle);
-		ext3_mark_inode_dirty(handle, inode);
-	}
-	ext3_journal_stop(handle);
-out:
-	return;
-}
-
-#if 0
-/*
- * Bind an inode's backing buffer_head into this transaction, to prevent
- * it from being flushed to disk early.  Unlike
- * ext3_reserve_inode_write, this leaves behind no bh reference and
- * returns no iloc structure, so the caller needs to repeat the iloc
- * lookup to mark the inode dirty later.
- */
-static int ext3_pin_inode(handle_t *handle, struct inode *inode)
-{
-	struct ext3_iloc iloc;
-
-	int err = 0;
-	if (handle) {
-		err = ext3_get_inode_loc(inode, &iloc);
-		if (!err) {
-			BUFFER_TRACE(iloc.bh, "get_write_access");
-			err = journal_get_write_access(handle, iloc.bh);
-			if (!err)
-				err = ext3_journal_dirty_metadata(handle,
-								  iloc.bh);
-			brelse(iloc.bh);
-		}
-	}
-	ext3_std_error(inode->i_sb, err);
-	return err;
-}
-#endif
-
-int ext3_change_inode_journal_flag(struct inode *inode, int val)
-{
-	journal_t *journal;
-	handle_t *handle;
-	int err;
-
-	/*
-	 * We have to be very careful here: changing a data block's
-	 * journaling status dynamically is dangerous.  If we write a
-	 * data block to the journal, change the status and then delete
-	 * that block, we risk forgetting to revoke the old log record
-	 * from the journal and so a subsequent replay can corrupt data.
-	 * So, first we make sure that the journal is empty and that
-	 * nobody is changing anything.
-	 */
-
-	journal = EXT3_JOURNAL(inode);
-	if (is_journal_aborted(journal))
-		return -EROFS;
-
-	journal_lock_updates(journal);
-	journal_flush(journal);
-
-	/*
-	 * OK, there are no updates running now, and all cached data is
-	 * synced to disk.  We are now in a completely consistent state
-	 * which doesn't have anything in the journal, and we know that
-	 * no filesystem updates are running, so it is safe to modify
-	 * the inode's in-core data-journaling state flag now.
-	 */
-
-	if (val)
-		EXT3_I(inode)->i_flags |= EXT3_JOURNAL_DATA_FL;
-	else
-		EXT3_I(inode)->i_flags &= ~EXT3_JOURNAL_DATA_FL;
-	ext3_set_aops(inode);
-
-	journal_unlock_updates(journal);
-
-	/* Finally we can mark the inode as dirty. */
-
-	handle = ext3_journal_start(inode, 1);
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	err = ext3_mark_inode_dirty(handle, inode);
-	handle->h_sync = 1;
-	ext3_journal_stop(handle);
-	ext3_std_error(inode->i_sb, err);
-
-	return err;
-}
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
deleted file mode 100644
index 4d96e9a64..000000000
--- a/fs/ext3/ioctl.c
+++ /dev/null
@@ -1,327 +0,0 @@
-/*
- * linux/fs/ext3/ioctl.c
- *
- * Copyright (C) 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- */
-
-#include <linux/mount.h>
-#include <linux/compat.h>
-#include <asm/uaccess.h>
-#include "ext3.h"
-
-long ext3_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	struct inode *inode = file_inode(filp);
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	unsigned int flags;
-	unsigned short rsv_window_size;
-
-	ext3_debug ("cmd = %u, arg = %lu\n", cmd, arg);
-
-	switch (cmd) {
-	case EXT3_IOC_GETFLAGS:
-		ext3_get_inode_flags(ei);
-		flags = ei->i_flags & EXT3_FL_USER_VISIBLE;
-		return put_user(flags, (int __user *) arg);
-	case EXT3_IOC_SETFLAGS: {
-		handle_t *handle = NULL;
-		int err;
-		struct ext3_iloc iloc;
-		unsigned int oldflags;
-		unsigned int jflag;
-
-		if (!inode_owner_or_capable(inode))
-			return -EACCES;
-
-		if (get_user(flags, (int __user *) arg))
-			return -EFAULT;
-
-		err = mnt_want_write_file(filp);
-		if (err)
-			return err;
-
-		flags = ext3_mask_flags(inode->i_mode, flags);
-
-		mutex_lock(&inode->i_mutex);
-
-		/* Is it quota file? Do not allow user to mess with it */
-		err = -EPERM;
-		if (IS_NOQUOTA(inode))
-			goto flags_out;
-
-		oldflags = ei->i_flags;
-
-		/* The JOURNAL_DATA flag is modifiable only by root */
-		jflag = flags & EXT3_JOURNAL_DATA_FL;
-
-		/*
-		 * The IMMUTABLE and APPEND_ONLY flags can only be changed by
-		 * the relevant capability.
-		 *
-		 * This test looks nicer. Thanks to Pauline Middelink
-		 */
-		if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) {
-			if (!capable(CAP_LINUX_IMMUTABLE))
-				goto flags_out;
-		}
-
-		/*
-		 * The JOURNAL_DATA flag can only be changed by
-		 * the relevant capability.
-		 */
-		if ((jflag ^ oldflags) & (EXT3_JOURNAL_DATA_FL)) {
-			if (!capable(CAP_SYS_RESOURCE))
-				goto flags_out;
-		}
-
-		handle = ext3_journal_start(inode, 1);
-		if (IS_ERR(handle)) {
-			err = PTR_ERR(handle);
-			goto flags_out;
-		}
-		if (IS_SYNC(inode))
-			handle->h_sync = 1;
-		err = ext3_reserve_inode_write(handle, inode, &iloc);
-		if (err)
-			goto flags_err;
-
-		flags = flags & EXT3_FL_USER_MODIFIABLE;
-		flags |= oldflags & ~EXT3_FL_USER_MODIFIABLE;
-		ei->i_flags = flags;
-
-		ext3_set_inode_flags(inode);
-		inode->i_ctime = CURRENT_TIME_SEC;
-
-		err = ext3_mark_iloc_dirty(handle, inode, &iloc);
-flags_err:
-		ext3_journal_stop(handle);
-		if (err)
-			goto flags_out;
-
-		if ((jflag ^ oldflags) & (EXT3_JOURNAL_DATA_FL))
-			err = ext3_change_inode_journal_flag(inode, jflag);
-flags_out:
-		mutex_unlock(&inode->i_mutex);
-		mnt_drop_write_file(filp);
-		return err;
-	}
-	case EXT3_IOC_GETVERSION:
-	case EXT3_IOC_GETVERSION_OLD:
-		return put_user(inode->i_generation, (int __user *) arg);
-	case EXT3_IOC_SETVERSION:
-	case EXT3_IOC_SETVERSION_OLD: {
-		handle_t *handle;
-		struct ext3_iloc iloc;
-		__u32 generation;
-		int err;
-
-		if (!inode_owner_or_capable(inode))
-			return -EPERM;
-
-		err = mnt_want_write_file(filp);
-		if (err)
-			return err;
-		if (get_user(generation, (int __user *) arg)) {
-			err = -EFAULT;
-			goto setversion_out;
-		}
-
-		mutex_lock(&inode->i_mutex);
-		handle = ext3_journal_start(inode, 1);
-		if (IS_ERR(handle)) {
-			err = PTR_ERR(handle);
-			goto unlock_out;
-		}
-		err = ext3_reserve_inode_write(handle, inode, &iloc);
-		if (err == 0) {
-			inode->i_ctime = CURRENT_TIME_SEC;
-			inode->i_generation = generation;
-			err = ext3_mark_iloc_dirty(handle, inode, &iloc);
-		}
-		ext3_journal_stop(handle);
-
-unlock_out:
-		mutex_unlock(&inode->i_mutex);
-setversion_out:
-		mnt_drop_write_file(filp);
-		return err;
-	}
-	case EXT3_IOC_GETRSVSZ:
-		if (test_opt(inode->i_sb, RESERVATION)
-			&& S_ISREG(inode->i_mode)
-			&& ei->i_block_alloc_info) {
-			rsv_window_size = ei->i_block_alloc_info->rsv_window_node.rsv_goal_size;
-			return put_user(rsv_window_size, (int __user *)arg);
-		}
-		return -ENOTTY;
-	case EXT3_IOC_SETRSVSZ: {
-		int err;
-
-		if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode))
-			return -ENOTTY;
-
-		err = mnt_want_write_file(filp);
-		if (err)
-			return err;
-
-		if (!inode_owner_or_capable(inode)) {
-			err = -EACCES;
-			goto setrsvsz_out;
-		}
-
-		if (get_user(rsv_window_size, (int __user *)arg)) {
-			err = -EFAULT;
-			goto setrsvsz_out;
-		}
-
-		if (rsv_window_size > EXT3_MAX_RESERVE_BLOCKS)
-			rsv_window_size = EXT3_MAX_RESERVE_BLOCKS;
-
-		/*
-		 * need to allocate reservation structure for this inode
-		 * before set the window size
-		 */
-		mutex_lock(&ei->truncate_mutex);
-		if (!ei->i_block_alloc_info)
-			ext3_init_block_alloc_info(inode);
-
-		if (ei->i_block_alloc_info){
-			struct ext3_reserve_window_node *rsv = &ei->i_block_alloc_info->rsv_window_node;
-			rsv->rsv_goal_size = rsv_window_size;
-		}
-		mutex_unlock(&ei->truncate_mutex);
-setrsvsz_out:
-		mnt_drop_write_file(filp);
-		return err;
-	}
-	case EXT3_IOC_GROUP_EXTEND: {
-		ext3_fsblk_t n_blocks_count;
-		struct super_block *sb = inode->i_sb;
-		int err, err2;
-
-		if (!capable(CAP_SYS_RESOURCE))
-			return -EPERM;
-
-		err = mnt_want_write_file(filp);
-		if (err)
-			return err;
-
-		if (get_user(n_blocks_count, (__u32 __user *)arg)) {
-			err = -EFAULT;
-			goto group_extend_out;
-		}
-		err = ext3_group_extend(sb, EXT3_SB(sb)->s_es, n_blocks_count);
-		journal_lock_updates(EXT3_SB(sb)->s_journal);
-		err2 = journal_flush(EXT3_SB(sb)->s_journal);
-		journal_unlock_updates(EXT3_SB(sb)->s_journal);
-		if (err == 0)
-			err = err2;
-group_extend_out:
-		mnt_drop_write_file(filp);
-		return err;
-	}
-	case EXT3_IOC_GROUP_ADD: {
-		struct ext3_new_group_data input;
-		struct super_block *sb = inode->i_sb;
-		int err, err2;
-
-		if (!capable(CAP_SYS_RESOURCE))
-			return -EPERM;
-
-		err = mnt_want_write_file(filp);
-		if (err)
-			return err;
-
-		if (copy_from_user(&input, (struct ext3_new_group_input __user *)arg,
-				sizeof(input))) {
-			err = -EFAULT;
-			goto group_add_out;
-		}
-
-		err = ext3_group_add(sb, &input);
-		journal_lock_updates(EXT3_SB(sb)->s_journal);
-		err2 = journal_flush(EXT3_SB(sb)->s_journal);
-		journal_unlock_updates(EXT3_SB(sb)->s_journal);
-		if (err == 0)
-			err = err2;
-group_add_out:
-		mnt_drop_write_file(filp);
-		return err;
-	}
-	case FITRIM: {
-
-		struct super_block *sb = inode->i_sb;
-		struct fstrim_range range;
-		int ret = 0;
-
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
-
-		if (copy_from_user(&range, (struct fstrim_range __user *)arg,
-				   sizeof(range)))
-			return -EFAULT;
-
-		ret = ext3_trim_fs(sb, &range);
-		if (ret < 0)
-			return ret;
-
-		if (copy_to_user((struct fstrim_range __user *)arg, &range,
-				 sizeof(range)))
-			return -EFAULT;
-
-		return 0;
-	}
-
-	default:
-		return -ENOTTY;
-	}
-}
-
-#ifdef CONFIG_COMPAT
-long ext3_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	/* These are just misnamed, they actually get/put from/to user an int */
-	switch (cmd) {
-	case EXT3_IOC32_GETFLAGS:
-		cmd = EXT3_IOC_GETFLAGS;
-		break;
-	case EXT3_IOC32_SETFLAGS:
-		cmd = EXT3_IOC_SETFLAGS;
-		break;
-	case EXT3_IOC32_GETVERSION:
-		cmd = EXT3_IOC_GETVERSION;
-		break;
-	case EXT3_IOC32_SETVERSION:
-		cmd = EXT3_IOC_SETVERSION;
-		break;
-	case EXT3_IOC32_GROUP_EXTEND:
-		cmd = EXT3_IOC_GROUP_EXTEND;
-		break;
-	case EXT3_IOC32_GETVERSION_OLD:
-		cmd = EXT3_IOC_GETVERSION_OLD;
-		break;
-	case EXT3_IOC32_SETVERSION_OLD:
-		cmd = EXT3_IOC_SETVERSION_OLD;
-		break;
-#ifdef CONFIG_JBD_DEBUG
-	case EXT3_IOC32_WAIT_FOR_READONLY:
-		cmd = EXT3_IOC_WAIT_FOR_READONLY;
-		break;
-#endif
-	case EXT3_IOC32_GETRSVSZ:
-		cmd = EXT3_IOC_GETRSVSZ;
-		break;
-	case EXT3_IOC32_SETRSVSZ:
-		cmd = EXT3_IOC_SETRSVSZ;
-		break;
-	case EXT3_IOC_GROUP_ADD:
-		break;
-	default:
-		return -ENOIOCTLCMD;
-	}
-	return ext3_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
-}
-#endif
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
deleted file mode 100644
index c9e767cd4..000000000
--- a/fs/ext3/namei.c
+++ /dev/null
@@ -1,2586 +0,0 @@
-/*
- *  linux/fs/ext3/namei.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- *  from
- *
- *  linux/fs/minix/namei.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *
- *  Big-endian to little-endian byte-swapping/bitmaps by
- *        David S. Miller (davem@caip.rutgers.edu), 1995
- *  Directory entry file type support and forward compatibility hooks
- *	for B-tree directories by Theodore Ts'o (tytso@mit.edu), 1998
- *  Hash Tree Directory indexing (c)
- *	Daniel Phillips, 2001
- *  Hash Tree Directory indexing porting
- *	Christopher Li, 2002
- *  Hash Tree Directory indexing cleanup
- *	Theodore Ts'o, 2002
- */
-
-#include <linux/quotaops.h>
-#include "ext3.h"
-#include "namei.h"
-#include "xattr.h"
-#include "acl.h"
-
-/*
- * define how far ahead to read directories while searching them.
- */
-#define NAMEI_RA_CHUNKS  2
-#define NAMEI_RA_BLOCKS  4
-#define NAMEI_RA_SIZE        (NAMEI_RA_CHUNKS * NAMEI_RA_BLOCKS)
-
-static struct buffer_head *ext3_append(handle_t *handle,
-					struct inode *inode,
-					u32 *block, int *err)
-{
-	struct buffer_head *bh;
-
-	*block = inode->i_size >> inode->i_sb->s_blocksize_bits;
-
-	if ((bh = ext3_dir_bread(handle, inode, *block, 1, err))) {
-		inode->i_size += inode->i_sb->s_blocksize;
-		EXT3_I(inode)->i_disksize = inode->i_size;
-		*err = ext3_journal_get_write_access(handle, bh);
-		if (*err) {
-			brelse(bh);
-			bh = NULL;
-		}
-	}
-	return bh;
-}
-
-#ifndef assert
-#define assert(test) J_ASSERT(test)
-#endif
-
-#ifdef DX_DEBUG
-#define dxtrace(command) command
-#else
-#define dxtrace(command)
-#endif
-
-struct fake_dirent
-{
-	__le32 inode;
-	__le16 rec_len;
-	u8 name_len;
-	u8 file_type;
-};
-
-struct dx_countlimit
-{
-	__le16 limit;
-	__le16 count;
-};
-
-struct dx_entry
-{
-	__le32 hash;
-	__le32 block;
-};
-
-/*
- * dx_root_info is laid out so that if it should somehow get overlaid by a
- * dirent the two low bits of the hash version will be zero.  Therefore, the
- * hash version mod 4 should never be 0.  Sincerely, the paranoia department.
- */
-
-struct dx_root
-{
-	struct fake_dirent dot;
-	char dot_name[4];
-	struct fake_dirent dotdot;
-	char dotdot_name[4];
-	struct dx_root_info
-	{
-		__le32 reserved_zero;
-		u8 hash_version;
-		u8 info_length; /* 8 */
-		u8 indirect_levels;
-		u8 unused_flags;
-	}
-	info;
-	struct dx_entry	entries[0];
-};
-
-struct dx_node
-{
-	struct fake_dirent fake;
-	struct dx_entry	entries[0];
-};
-
-
-struct dx_frame
-{
-	struct buffer_head *bh;
-	struct dx_entry *entries;
-	struct dx_entry *at;
-};
-
-struct dx_map_entry
-{
-	u32 hash;
-	u16 offs;
-	u16 size;
-};
-
-static inline unsigned dx_get_block (struct dx_entry *entry);
-static void dx_set_block (struct dx_entry *entry, unsigned value);
-static inline unsigned dx_get_hash (struct dx_entry *entry);
-static void dx_set_hash (struct dx_entry *entry, unsigned value);
-static unsigned dx_get_count (struct dx_entry *entries);
-static unsigned dx_get_limit (struct dx_entry *entries);
-static void dx_set_count (struct dx_entry *entries, unsigned value);
-static void dx_set_limit (struct dx_entry *entries, unsigned value);
-static unsigned dx_root_limit (struct inode *dir, unsigned infosize);
-static unsigned dx_node_limit (struct inode *dir);
-static struct dx_frame *dx_probe(struct qstr *entry,
-				 struct inode *dir,
-				 struct dx_hash_info *hinfo,
-				 struct dx_frame *frame,
-				 int *err);
-static void dx_release (struct dx_frame *frames);
-static int dx_make_map(struct ext3_dir_entry_2 *de, unsigned blocksize,
-			struct dx_hash_info *hinfo, struct dx_map_entry map[]);
-static void dx_sort_map(struct dx_map_entry *map, unsigned count);
-static struct ext3_dir_entry_2 *dx_move_dirents (char *from, char *to,
-		struct dx_map_entry *offsets, int count);
-static struct ext3_dir_entry_2 *dx_pack_dirents(char *base, unsigned blocksize);
-static void dx_insert_block (struct dx_frame *frame, u32 hash, u32 block);
-static int ext3_htree_next_block(struct inode *dir, __u32 hash,
-				 struct dx_frame *frame,
-				 struct dx_frame *frames,
-				 __u32 *start_hash);
-static struct buffer_head * ext3_dx_find_entry(struct inode *dir,
-			struct qstr *entry, struct ext3_dir_entry_2 **res_dir,
-			int *err);
-static int ext3_dx_add_entry(handle_t *handle, struct dentry *dentry,
-			     struct inode *inode);
-
-/*
- * p is at least 6 bytes before the end of page
- */
-static inline struct ext3_dir_entry_2 *
-ext3_next_entry(struct ext3_dir_entry_2 *p)
-{
-	return (struct ext3_dir_entry_2 *)((char *)p +
-		ext3_rec_len_from_disk(p->rec_len));
-}
-
-/*
- * Future: use high four bits of block for coalesce-on-delete flags
- * Mask them off for now.
- */
-
-static inline unsigned dx_get_block (struct dx_entry *entry)
-{
-	return le32_to_cpu(entry->block) & 0x00ffffff;
-}
-
-static inline void dx_set_block (struct dx_entry *entry, unsigned value)
-{
-	entry->block = cpu_to_le32(value);
-}
-
-static inline unsigned dx_get_hash (struct dx_entry *entry)
-{
-	return le32_to_cpu(entry->hash);
-}
-
-static inline void dx_set_hash (struct dx_entry *entry, unsigned value)
-{
-	entry->hash = cpu_to_le32(value);
-}
-
-static inline unsigned dx_get_count (struct dx_entry *entries)
-{
-	return le16_to_cpu(((struct dx_countlimit *) entries)->count);
-}
-
-static inline unsigned dx_get_limit (struct dx_entry *entries)
-{
-	return le16_to_cpu(((struct dx_countlimit *) entries)->limit);
-}
-
-static inline void dx_set_count (struct dx_entry *entries, unsigned value)
-{
-	((struct dx_countlimit *) entries)->count = cpu_to_le16(value);
-}
-
-static inline void dx_set_limit (struct dx_entry *entries, unsigned value)
-{
-	((struct dx_countlimit *) entries)->limit = cpu_to_le16(value);
-}
-
-static inline unsigned dx_root_limit (struct inode *dir, unsigned infosize)
-{
-	unsigned entry_space = dir->i_sb->s_blocksize - EXT3_DIR_REC_LEN(1) -
-		EXT3_DIR_REC_LEN(2) - infosize;
-	return entry_space / sizeof(struct dx_entry);
-}
-
-static inline unsigned dx_node_limit (struct inode *dir)
-{
-	unsigned entry_space = dir->i_sb->s_blocksize - EXT3_DIR_REC_LEN(0);
-	return entry_space / sizeof(struct dx_entry);
-}
-
-/*
- * Debug
- */
-#ifdef DX_DEBUG
-static void dx_show_index (char * label, struct dx_entry *entries)
-{
-        int i, n = dx_get_count (entries);
-        printk("%s index ", label);
-        for (i = 0; i < n; i++)
-        {
-                printk("%x->%u ", i? dx_get_hash(entries + i): 0, dx_get_block(entries + i));
-        }
-        printk("\n");
-}
-
-struct stats
-{
-	unsigned names;
-	unsigned space;
-	unsigned bcount;
-};
-
-static struct stats dx_show_leaf(struct dx_hash_info *hinfo, struct ext3_dir_entry_2 *de,
-				 int size, int show_names)
-{
-	unsigned names = 0, space = 0;
-	char *base = (char *) de;
-	struct dx_hash_info h = *hinfo;
-
-	printk("names: ");
-	while ((char *) de < base + size)
-	{
-		if (de->inode)
-		{
-			if (show_names)
-			{
-				int len = de->name_len;
-				char *name = de->name;
-				while (len--) printk("%c", *name++);
-				ext3fs_dirhash(de->name, de->name_len, &h);
-				printk(":%x.%u ", h.hash,
-				       (unsigned) ((char *) de - base));
-			}
-			space += EXT3_DIR_REC_LEN(de->name_len);
-			names++;
-		}
-		de = ext3_next_entry(de);
-	}
-	printk("(%i)\n", names);
-	return (struct stats) { names, space, 1 };
-}
-
-struct stats dx_show_entries(struct dx_hash_info *hinfo, struct inode *dir,
-			     struct dx_entry *entries, int levels)
-{
-	unsigned blocksize = dir->i_sb->s_blocksize;
-	unsigned count = dx_get_count (entries), names = 0, space = 0, i;
-	unsigned bcount = 0;
-	struct buffer_head *bh;
-	int err;
-	printk("%i indexed blocks...\n", count);
-	for (i = 0; i < count; i++, entries++)
-	{
-		u32 block = dx_get_block(entries), hash = i? dx_get_hash(entries): 0;
-		u32 range = i < count - 1? (dx_get_hash(entries + 1) - hash): ~hash;
-		struct stats stats;
-		printk("%s%3u:%03u hash %8x/%8x ",levels?"":"   ", i, block, hash, range);
-		if (!(bh = ext3_bread (NULL,dir, block, 0,&err))) continue;
-		stats = levels?
-		   dx_show_entries(hinfo, dir, ((struct dx_node *) bh->b_data)->entries, levels - 1):
-		   dx_show_leaf(hinfo, (struct ext3_dir_entry_2 *) bh->b_data, blocksize, 0);
-		names += stats.names;
-		space += stats.space;
-		bcount += stats.bcount;
-		brelse (bh);
-	}
-	if (bcount)
-		printk("%snames %u, fullness %u (%u%%)\n", levels?"":"   ",
-			names, space/bcount,(space/bcount)*100/blocksize);
-	return (struct stats) { names, space, bcount};
-}
-#endif /* DX_DEBUG */
-
-/*
- * Probe for a directory leaf block to search.
- *
- * dx_probe can return ERR_BAD_DX_DIR, which means there was a format
- * error in the directory index, and the caller should fall back to
- * searching the directory normally.  The callers of dx_probe **MUST**
- * check for this error code, and make sure it never gets reflected
- * back to userspace.
- */
-static struct dx_frame *
-dx_probe(struct qstr *entry, struct inode *dir,
-	 struct dx_hash_info *hinfo, struct dx_frame *frame_in, int *err)
-{
-	unsigned count, indirect;
-	struct dx_entry *at, *entries, *p, *q, *m;
-	struct dx_root *root;
-	struct buffer_head *bh;
-	struct dx_frame *frame = frame_in;
-	u32 hash;
-
-	frame->bh = NULL;
-	if (!(bh = ext3_dir_bread(NULL, dir, 0, 0, err))) {
-		*err = ERR_BAD_DX_DIR;
-		goto fail;
-	}
-	root = (struct dx_root *) bh->b_data;
-	if (root->info.hash_version != DX_HASH_TEA &&
-	    root->info.hash_version != DX_HASH_HALF_MD4 &&
-	    root->info.hash_version != DX_HASH_LEGACY) {
-		ext3_warning(dir->i_sb, __func__,
-			     "Unrecognised inode hash code %d",
-			     root->info.hash_version);
-		brelse(bh);
-		*err = ERR_BAD_DX_DIR;
-		goto fail;
-	}
-	hinfo->hash_version = root->info.hash_version;
-	if (hinfo->hash_version <= DX_HASH_TEA)
-		hinfo->hash_version += EXT3_SB(dir->i_sb)->s_hash_unsigned;
-	hinfo->seed = EXT3_SB(dir->i_sb)->s_hash_seed;
-	if (entry)
-		ext3fs_dirhash(entry->name, entry->len, hinfo);
-	hash = hinfo->hash;
-
-	if (root->info.unused_flags & 1) {
-		ext3_warning(dir->i_sb, __func__,
-			     "Unimplemented inode hash flags: %#06x",
-			     root->info.unused_flags);
-		brelse(bh);
-		*err = ERR_BAD_DX_DIR;
-		goto fail;
-	}
-
-	if ((indirect = root->info.indirect_levels) > 1) {
-		ext3_warning(dir->i_sb, __func__,
-			     "Unimplemented inode hash depth: %#06x",
-			     root->info.indirect_levels);
-		brelse(bh);
-		*err = ERR_BAD_DX_DIR;
-		goto fail;
-	}
-
-	entries = (struct dx_entry *) (((char *)&root->info) +
-				       root->info.info_length);
-
-	if (dx_get_limit(entries) != dx_root_limit(dir,
-						   root->info.info_length)) {
-		ext3_warning(dir->i_sb, __func__,
-			     "dx entry: limit != root limit");
-		brelse(bh);
-		*err = ERR_BAD_DX_DIR;
-		goto fail;
-	}
-
-	dxtrace (printk("Look up %x", hash));
-	while (1)
-	{
-		count = dx_get_count(entries);
-		if (!count || count > dx_get_limit(entries)) {
-			ext3_warning(dir->i_sb, __func__,
-				     "dx entry: no count or count > limit");
-			brelse(bh);
-			*err = ERR_BAD_DX_DIR;
-			goto fail2;
-		}
-
-		p = entries + 1;
-		q = entries + count - 1;
-		while (p <= q)
-		{
-			m = p + (q - p)/2;
-			dxtrace(printk("."));
-			if (dx_get_hash(m) > hash)
-				q = m - 1;
-			else
-				p = m + 1;
-		}
-
-		if (0) // linear search cross check
-		{
-			unsigned n = count - 1;
-			at = entries;
-			while (n--)
-			{
-				dxtrace(printk(","));
-				if (dx_get_hash(++at) > hash)
-				{
-					at--;
-					break;
-				}
-			}
-			assert (at == p - 1);
-		}
-
-		at = p - 1;
-		dxtrace(printk(" %x->%u\n", at == entries? 0: dx_get_hash(at), dx_get_block(at)));
-		frame->bh = bh;
-		frame->entries = entries;
-		frame->at = at;
-		if (!indirect--) return frame;
-		if (!(bh = ext3_dir_bread(NULL, dir, dx_get_block(at), 0, err))) {
-			*err = ERR_BAD_DX_DIR;
-			goto fail2;
-		}
-		at = entries = ((struct dx_node *) bh->b_data)->entries;
-		if (dx_get_limit(entries) != dx_node_limit (dir)) {
-			ext3_warning(dir->i_sb, __func__,
-				     "dx entry: limit != node limit");
-			brelse(bh);
-			*err = ERR_BAD_DX_DIR;
-			goto fail2;
-		}
-		frame++;
-		frame->bh = NULL;
-	}
-fail2:
-	while (frame >= frame_in) {
-		brelse(frame->bh);
-		frame--;
-	}
-fail:
-	if (*err == ERR_BAD_DX_DIR)
-		ext3_warning(dir->i_sb, __func__,
-			     "Corrupt dir inode %ld, running e2fsck is "
-			     "recommended.", dir->i_ino);
-	return NULL;
-}
-
-static void dx_release (struct dx_frame *frames)
-{
-	if (frames[0].bh == NULL)
-		return;
-
-	if (((struct dx_root *) frames[0].bh->b_data)->info.indirect_levels)
-		brelse(frames[1].bh);
-	brelse(frames[0].bh);
-}
-
-/*
- * This function increments the frame pointer to search the next leaf
- * block, and reads in the necessary intervening nodes if the search
- * should be necessary.  Whether or not the search is necessary is
- * controlled by the hash parameter.  If the hash value is even, then
- * the search is only continued if the next block starts with that
- * hash value.  This is used if we are searching for a specific file.
- *
- * If the hash value is HASH_NB_ALWAYS, then always go to the next block.
- *
- * This function returns 1 if the caller should continue to search,
- * or 0 if it should not.  If there is an error reading one of the
- * index blocks, it will a negative error code.
- *
- * If start_hash is non-null, it will be filled in with the starting
- * hash of the next page.
- */
-static int ext3_htree_next_block(struct inode *dir, __u32 hash,
-				 struct dx_frame *frame,
-				 struct dx_frame *frames,
-				 __u32 *start_hash)
-{
-	struct dx_frame *p;
-	struct buffer_head *bh;
-	int err, num_frames = 0;
-	__u32 bhash;
-
-	p = frame;
-	/*
-	 * Find the next leaf page by incrementing the frame pointer.
-	 * If we run out of entries in the interior node, loop around and
-	 * increment pointer in the parent node.  When we break out of
-	 * this loop, num_frames indicates the number of interior
-	 * nodes need to be read.
-	 */
-	while (1) {
-		if (++(p->at) < p->entries + dx_get_count(p->entries))
-			break;
-		if (p == frames)
-			return 0;
-		num_frames++;
-		p--;
-	}
-
-	/*
-	 * If the hash is 1, then continue only if the next page has a
-	 * continuation hash of any value.  This is used for readdir
-	 * handling.  Otherwise, check to see if the hash matches the
-	 * desired contiuation hash.  If it doesn't, return since
-	 * there's no point to read in the successive index pages.
-	 */
-	bhash = dx_get_hash(p->at);
-	if (start_hash)
-		*start_hash = bhash;
-	if ((hash & 1) == 0) {
-		if ((bhash & ~1) != hash)
-			return 0;
-	}
-	/*
-	 * If the hash is HASH_NB_ALWAYS, we always go to the next
-	 * block so no check is necessary
-	 */
-	while (num_frames--) {
-		if (!(bh = ext3_dir_bread(NULL, dir, dx_get_block(p->at),
-					  0, &err)))
-			return err; /* Failure */
-		p++;
-		brelse (p->bh);
-		p->bh = bh;
-		p->at = p->entries = ((struct dx_node *) bh->b_data)->entries;
-	}
-	return 1;
-}
-
-
-/*
- * This function fills a red-black tree with information from a
- * directory block.  It returns the number directory entries loaded
- * into the tree.  If there is an error it is returned in err.
- */
-static int htree_dirblock_to_tree(struct file *dir_file,
-				  struct inode *dir, int block,
-				  struct dx_hash_info *hinfo,
-				  __u32 start_hash, __u32 start_minor_hash)
-{
-	struct buffer_head *bh;
-	struct ext3_dir_entry_2 *de, *top;
-	int err = 0, count = 0;
-
-	dxtrace(printk("In htree dirblock_to_tree: block %d\n", block));
-
-	if (!(bh = ext3_dir_bread(NULL, dir, block, 0, &err)))
-		return err;
-
-	de = (struct ext3_dir_entry_2 *) bh->b_data;
-	top = (struct ext3_dir_entry_2 *) ((char *) de +
-					   dir->i_sb->s_blocksize -
-					   EXT3_DIR_REC_LEN(0));
-	for (; de < top; de = ext3_next_entry(de)) {
-		if (!ext3_check_dir_entry("htree_dirblock_to_tree", dir, de, bh,
-					(block<<EXT3_BLOCK_SIZE_BITS(dir->i_sb))
-						+((char *)de - bh->b_data))) {
-			/* silently ignore the rest of the block */
-			break;
-		}
-		ext3fs_dirhash(de->name, de->name_len, hinfo);
-		if ((hinfo->hash < start_hash) ||
-		    ((hinfo->hash == start_hash) &&
-		     (hinfo->minor_hash < start_minor_hash)))
-			continue;
-		if (de->inode == 0)
-			continue;
-		if ((err = ext3_htree_store_dirent(dir_file,
-				   hinfo->hash, hinfo->minor_hash, de)) != 0) {
-			brelse(bh);
-			return err;
-		}
-		count++;
-	}
-	brelse(bh);
-	return count;
-}
-
-
-/*
- * This function fills a red-black tree with information from a
- * directory.  We start scanning the directory in hash order, starting
- * at start_hash and start_minor_hash.
- *
- * This function returns the number of entries inserted into the tree,
- * or a negative error code.
- */
-int ext3_htree_fill_tree(struct file *dir_file, __u32 start_hash,
-			 __u32 start_minor_hash, __u32 *next_hash)
-{
-	struct dx_hash_info hinfo;
-	struct ext3_dir_entry_2 *de;
-	struct dx_frame frames[2], *frame;
-	struct inode *dir;
-	int block, err;
-	int count = 0;
-	int ret;
-	__u32 hashval;
-
-	dxtrace(printk("In htree_fill_tree, start hash: %x:%x\n", start_hash,
-		       start_minor_hash));
-	dir = file_inode(dir_file);
-	if (!(EXT3_I(dir)->i_flags & EXT3_INDEX_FL)) {
-		hinfo.hash_version = EXT3_SB(dir->i_sb)->s_def_hash_version;
-		if (hinfo.hash_version <= DX_HASH_TEA)
-			hinfo.hash_version +=
-				EXT3_SB(dir->i_sb)->s_hash_unsigned;
-		hinfo.seed = EXT3_SB(dir->i_sb)->s_hash_seed;
-		count = htree_dirblock_to_tree(dir_file, dir, 0, &hinfo,
-					       start_hash, start_minor_hash);
-		*next_hash = ~0;
-		return count;
-	}
-	hinfo.hash = start_hash;
-	hinfo.minor_hash = 0;
-	frame = dx_probe(NULL, file_inode(dir_file), &hinfo, frames, &err);
-	if (!frame)
-		return err;
-
-	/* Add '.' and '..' from the htree header */
-	if (!start_hash && !start_minor_hash) {
-		de = (struct ext3_dir_entry_2 *) frames[0].bh->b_data;
-		if ((err = ext3_htree_store_dirent(dir_file, 0, 0, de)) != 0)
-			goto errout;
-		count++;
-	}
-	if (start_hash < 2 || (start_hash ==2 && start_minor_hash==0)) {
-		de = (struct ext3_dir_entry_2 *) frames[0].bh->b_data;
-		de = ext3_next_entry(de);
-		if ((err = ext3_htree_store_dirent(dir_file, 2, 0, de)) != 0)
-			goto errout;
-		count++;
-	}
-
-	while (1) {
-		block = dx_get_block(frame->at);
-		ret = htree_dirblock_to_tree(dir_file, dir, block, &hinfo,
-					     start_hash, start_minor_hash);
-		if (ret < 0) {
-			err = ret;
-			goto errout;
-		}
-		count += ret;
-		hashval = ~0;
-		ret = ext3_htree_next_block(dir, HASH_NB_ALWAYS,
-					    frame, frames, &hashval);
-		*next_hash = hashval;
-		if (ret < 0) {
-			err = ret;
-			goto errout;
-		}
-		/*
-		 * Stop if:  (a) there are no more entries, or
-		 * (b) we have inserted at least one entry and the
-		 * next hash value is not a continuation
-		 */
-		if ((ret == 0) ||
-		    (count && ((hashval & 1) == 0)))
-			break;
-	}
-	dx_release(frames);
-	dxtrace(printk("Fill tree: returned %d entries, next hash: %x\n",
-		       count, *next_hash));
-	return count;
-errout:
-	dx_release(frames);
-	return (err);
-}
-
-
-/*
- * Directory block splitting, compacting
- */
-
-/*
- * Create map of hash values, offsets, and sizes, stored at end of block.
- * Returns number of entries mapped.
- */
-static int dx_make_map(struct ext3_dir_entry_2 *de, unsigned blocksize,
-		struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
-{
-	int count = 0;
-	char *base = (char *) de;
-	struct dx_hash_info h = *hinfo;
-
-	while ((char *) de < base + blocksize)
-	{
-		if (de->name_len && de->inode) {
-			ext3fs_dirhash(de->name, de->name_len, &h);
-			map_tail--;
-			map_tail->hash = h.hash;
-			map_tail->offs = (u16) ((char *) de - base);
-			map_tail->size = le16_to_cpu(de->rec_len);
-			count++;
-			cond_resched();
-		}
-		/* XXX: do we need to check rec_len == 0 case? -Chris */
-		de = ext3_next_entry(de);
-	}
-	return count;
-}
-
-/* Sort map by hash value */
-static void dx_sort_map (struct dx_map_entry *map, unsigned count)
-{
-        struct dx_map_entry *p, *q, *top = map + count - 1;
-        int more;
-        /* Combsort until bubble sort doesn't suck */
-        while (count > 2)
-	{
-                count = count*10/13;
-                if (count - 9 < 2) /* 9, 10 -> 11 */
-                        count = 11;
-                for (p = top, q = p - count; q >= map; p--, q--)
-                        if (p->hash < q->hash)
-                                swap(*p, *q);
-        }
-        /* Garden variety bubble sort */
-        do {
-                more = 0;
-                q = top;
-                while (q-- > map)
-		{
-                        if (q[1].hash >= q[0].hash)
-				continue;
-                        swap(*(q+1), *q);
-                        more = 1;
-		}
-	} while(more);
-}
-
-static void dx_insert_block(struct dx_frame *frame, u32 hash, u32 block)
-{
-	struct dx_entry *entries = frame->entries;
-	struct dx_entry *old = frame->at, *new = old + 1;
-	int count = dx_get_count(entries);
-
-	assert(count < dx_get_limit(entries));
-	assert(old < entries + count);
-	memmove(new + 1, new, (char *)(entries + count) - (char *)(new));
-	dx_set_hash(new, hash);
-	dx_set_block(new, block);
-	dx_set_count(entries, count + 1);
-}
-
-static void ext3_update_dx_flag(struct inode *inode)
-{
-	if (!EXT3_HAS_COMPAT_FEATURE(inode->i_sb,
-				     EXT3_FEATURE_COMPAT_DIR_INDEX))
-		EXT3_I(inode)->i_flags &= ~EXT3_INDEX_FL;
-}
-
-/*
- * NOTE! unlike strncmp, ext3_match returns 1 for success, 0 for failure.
- *
- * `len <= EXT3_NAME_LEN' is guaranteed by caller.
- * `de != NULL' is guaranteed by caller.
- */
-static inline int ext3_match (int len, const char * const name,
-			      struct ext3_dir_entry_2 * de)
-{
-	if (len != de->name_len)
-		return 0;
-	if (!de->inode)
-		return 0;
-	return !memcmp(name, de->name, len);
-}
-
-/*
- * Returns 0 if not found, -1 on failure, and 1 on success
- */
-static inline int search_dirblock(struct buffer_head * bh,
-				  struct inode *dir,
-				  struct qstr *child,
-				  unsigned long offset,
-				  struct ext3_dir_entry_2 ** res_dir)
-{
-	struct ext3_dir_entry_2 * de;
-	char * dlimit;
-	int de_len;
-	const char *name = child->name;
-	int namelen = child->len;
-
-	de = (struct ext3_dir_entry_2 *) bh->b_data;
-	dlimit = bh->b_data + dir->i_sb->s_blocksize;
-	while ((char *) de < dlimit) {
-		/* this code is executed quadratically often */
-		/* do minimal checking `by hand' */
-
-		if ((char *) de + namelen <= dlimit &&
-		    ext3_match (namelen, name, de)) {
-			/* found a match - just to be sure, do a full check */
-			if (!ext3_check_dir_entry("ext3_find_entry",
-						  dir, de, bh, offset))
-				return -1;
-			*res_dir = de;
-			return 1;
-		}
-		/* prevent looping on a bad block */
-		de_len = ext3_rec_len_from_disk(de->rec_len);
-		if (de_len <= 0)
-			return -1;
-		offset += de_len;
-		de = (struct ext3_dir_entry_2 *) ((char *) de + de_len);
-	}
-	return 0;
-}
-
-
-/*
- *	ext3_find_entry()
- *
- * finds an entry in the specified directory with the wanted name. It
- * returns the cache buffer in which the entry was found, and the entry
- * itself (as a parameter - res_dir). It does NOT read the inode of the
- * entry - you'll have to do that yourself if you want to.
- *
- * The returned buffer_head has ->b_count elevated.  The caller is expected
- * to brelse() it when appropriate.
- */
-static struct buffer_head *ext3_find_entry(struct inode *dir,
-					struct qstr *entry,
-					struct ext3_dir_entry_2 **res_dir)
-{
-	struct super_block * sb;
-	struct buffer_head * bh_use[NAMEI_RA_SIZE];
-	struct buffer_head * bh, *ret = NULL;
-	unsigned long start, block, b;
-	const u8 *name = entry->name;
-	int ra_max = 0;		/* Number of bh's in the readahead
-				   buffer, bh_use[] */
-	int ra_ptr = 0;		/* Current index into readahead
-				   buffer */
-	int num = 0;
-	int nblocks, i, err;
-	int namelen;
-
-	*res_dir = NULL;
-	sb = dir->i_sb;
-	namelen = entry->len;
-	if (namelen > EXT3_NAME_LEN)
-		return NULL;
-	if ((namelen <= 2) && (name[0] == '.') &&
-	    (name[1] == '.' || name[1] == 0)) {
-		/*
-		 * "." or ".." will only be in the first block
-		 * NFS may look up ".."; "." should be handled by the VFS
-		 */
-		block = start = 0;
-		nblocks = 1;
-		goto restart;
-	}
-	if (is_dx(dir)) {
-		bh = ext3_dx_find_entry(dir, entry, res_dir, &err);
-		/*
-		 * On success, or if the error was file not found,
-		 * return.  Otherwise, fall back to doing a search the
-		 * old fashioned way.
-		 */
-		if (bh || (err != ERR_BAD_DX_DIR))
-			return bh;
-		dxtrace(printk("ext3_find_entry: dx failed, falling back\n"));
-	}
-	nblocks = dir->i_size >> EXT3_BLOCK_SIZE_BITS(sb);
-	start = EXT3_I(dir)->i_dir_start_lookup;
-	if (start >= nblocks)
-		start = 0;
-	block = start;
-restart:
-	do {
-		/*
-		 * We deal with the read-ahead logic here.
-		 */
-		if (ra_ptr >= ra_max) {
-			/* Refill the readahead buffer */
-			ra_ptr = 0;
-			b = block;
-			for (ra_max = 0; ra_max < NAMEI_RA_SIZE; ra_max++) {
-				/*
-				 * Terminate if we reach the end of the
-				 * directory and must wrap, or if our
-				 * search has finished at this block.
-				 */
-				if (b >= nblocks || (num && block == start)) {
-					bh_use[ra_max] = NULL;
-					break;
-				}
-				num++;
-				bh = ext3_getblk(NULL, dir, b++, 0, &err);
-				bh_use[ra_max] = bh;
-				if (bh && !bh_uptodate_or_lock(bh)) {
-					get_bh(bh);
-					bh->b_end_io = end_buffer_read_sync;
-					submit_bh(READ | REQ_META | REQ_PRIO,
-						  bh);
-				}
-			}
-		}
-		if ((bh = bh_use[ra_ptr++]) == NULL)
-			goto next;
-		wait_on_buffer(bh);
-		if (!buffer_uptodate(bh)) {
-			/* read error, skip block & hope for the best */
-			ext3_error(sb, __func__, "reading directory #%lu "
-				   "offset %lu", dir->i_ino, block);
-			brelse(bh);
-			goto next;
-		}
-		i = search_dirblock(bh, dir, entry,
-			    block << EXT3_BLOCK_SIZE_BITS(sb), res_dir);
-		if (i == 1) {
-			EXT3_I(dir)->i_dir_start_lookup = block;
-			ret = bh;
-			goto cleanup_and_exit;
-		} else {
-			brelse(bh);
-			if (i < 0)
-				goto cleanup_and_exit;
-		}
-	next:
-		if (++block >= nblocks)
-			block = 0;
-	} while (block != start);
-
-	/*
-	 * If the directory has grown while we were searching, then
-	 * search the last part of the directory before giving up.
-	 */
-	block = nblocks;
-	nblocks = dir->i_size >> EXT3_BLOCK_SIZE_BITS(sb);
-	if (block < nblocks) {
-		start = 0;
-		goto restart;
-	}
-
-cleanup_and_exit:
-	/* Clean up the read-ahead blocks */
-	for (; ra_ptr < ra_max; ra_ptr++)
-		brelse (bh_use[ra_ptr]);
-	return ret;
-}
-
-static struct buffer_head * ext3_dx_find_entry(struct inode *dir,
-			struct qstr *entry, struct ext3_dir_entry_2 **res_dir,
-			int *err)
-{
-	struct super_block *sb = dir->i_sb;
-	struct dx_hash_info	hinfo;
-	struct dx_frame frames[2], *frame;
-	struct buffer_head *bh;
-	unsigned long block;
-	int retval;
-
-	if (!(frame = dx_probe(entry, dir, &hinfo, frames, err)))
-		return NULL;
-	do {
-		block = dx_get_block(frame->at);
-		if (!(bh = ext3_dir_bread (NULL, dir, block, 0, err)))
-			goto errout;
-
-		retval = search_dirblock(bh, dir, entry,
-					 block << EXT3_BLOCK_SIZE_BITS(sb),
-					 res_dir);
-		if (retval == 1) {
-			dx_release(frames);
-			return bh;
-		}
-		brelse(bh);
-		if (retval == -1) {
-			*err = ERR_BAD_DX_DIR;
-			goto errout;
-		}
-
-		/* Check to see if we should continue to search */
-		retval = ext3_htree_next_block(dir, hinfo.hash, frame,
-					       frames, NULL);
-		if (retval < 0) {
-			ext3_warning(sb, __func__,
-			     "error reading index page in directory #%lu",
-			     dir->i_ino);
-			*err = retval;
-			goto errout;
-		}
-	} while (retval == 1);
-
-	*err = -ENOENT;
-errout:
-	dxtrace(printk("%s not found\n", entry->name));
-	dx_release (frames);
-	return NULL;
-}
-
-static struct dentry *ext3_lookup(struct inode * dir, struct dentry *dentry, unsigned int flags)
-{
-	struct inode * inode;
-	struct ext3_dir_entry_2 * de;
-	struct buffer_head * bh;
-
-	if (dentry->d_name.len > EXT3_NAME_LEN)
-		return ERR_PTR(-ENAMETOOLONG);
-
-	bh = ext3_find_entry(dir, &dentry->d_name, &de);
-	inode = NULL;
-	if (bh) {
-		unsigned long ino = le32_to_cpu(de->inode);
-		brelse (bh);
-		if (!ext3_valid_inum(dir->i_sb, ino)) {
-			ext3_error(dir->i_sb, "ext3_lookup",
-				   "bad inode number: %lu", ino);
-			return ERR_PTR(-EIO);
-		}
-		inode = ext3_iget(dir->i_sb, ino);
-		if (inode == ERR_PTR(-ESTALE)) {
-			ext3_error(dir->i_sb, __func__,
-					"deleted inode referenced: %lu",
-					ino);
-			return ERR_PTR(-EIO);
-		}
-	}
-	return d_splice_alias(inode, dentry);
-}
-
-
-struct dentry *ext3_get_parent(struct dentry *child)
-{
-	unsigned long ino;
-	struct qstr dotdot = QSTR_INIT("..", 2);
-	struct ext3_dir_entry_2 * de;
-	struct buffer_head *bh;
-
-	bh = ext3_find_entry(d_inode(child), &dotdot, &de);
-	if (!bh)
-		return ERR_PTR(-ENOENT);
-	ino = le32_to_cpu(de->inode);
-	brelse(bh);
-
-	if (!ext3_valid_inum(d_inode(child)->i_sb, ino)) {
-		ext3_error(d_inode(child)->i_sb, "ext3_get_parent",
-			   "bad inode number: %lu", ino);
-		return ERR_PTR(-EIO);
-	}
-
-	return d_obtain_alias(ext3_iget(d_inode(child)->i_sb, ino));
-}
-
-#define S_SHIFT 12
-static unsigned char ext3_type_by_mode[S_IFMT >> S_SHIFT] = {
-	[S_IFREG >> S_SHIFT]	= EXT3_FT_REG_FILE,
-	[S_IFDIR >> S_SHIFT]	= EXT3_FT_DIR,
-	[S_IFCHR >> S_SHIFT]	= EXT3_FT_CHRDEV,
-	[S_IFBLK >> S_SHIFT]	= EXT3_FT_BLKDEV,
-	[S_IFIFO >> S_SHIFT]	= EXT3_FT_FIFO,
-	[S_IFSOCK >> S_SHIFT]	= EXT3_FT_SOCK,
-	[S_IFLNK >> S_SHIFT]	= EXT3_FT_SYMLINK,
-};
-
-static inline void ext3_set_de_type(struct super_block *sb,
-				struct ext3_dir_entry_2 *de,
-				umode_t mode) {
-	if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_FILETYPE))
-		de->file_type = ext3_type_by_mode[(mode & S_IFMT)>>S_SHIFT];
-}
-
-/*
- * Move count entries from end of map between two memory locations.
- * Returns pointer to last entry moved.
- */
-static struct ext3_dir_entry_2 *
-dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
-{
-	unsigned rec_len = 0;
-
-	while (count--) {
-		struct ext3_dir_entry_2 *de = (struct ext3_dir_entry_2 *) (from + map->offs);
-		rec_len = EXT3_DIR_REC_LEN(de->name_len);
-		memcpy (to, de, rec_len);
-		((struct ext3_dir_entry_2 *) to)->rec_len =
-				ext3_rec_len_to_disk(rec_len);
-		de->inode = 0;
-		map++;
-		to += rec_len;
-	}
-	return (struct ext3_dir_entry_2 *) (to - rec_len);
-}
-
-/*
- * Compact each dir entry in the range to the minimal rec_len.
- * Returns pointer to last entry in range.
- */
-static struct ext3_dir_entry_2 *dx_pack_dirents(char *base, unsigned blocksize)
-{
-	struct ext3_dir_entry_2 *next, *to, *prev;
-	struct ext3_dir_entry_2 *de = (struct ext3_dir_entry_2 *)base;
-	unsigned rec_len = 0;
-
-	prev = to = de;
-	while ((char *)de < base + blocksize) {
-		next = ext3_next_entry(de);
-		if (de->inode && de->name_len) {
-			rec_len = EXT3_DIR_REC_LEN(de->name_len);
-			if (de > to)
-				memmove(to, de, rec_len);
-			to->rec_len = ext3_rec_len_to_disk(rec_len);
-			prev = to;
-			to = (struct ext3_dir_entry_2 *) (((char *) to) + rec_len);
-		}
-		de = next;
-	}
-	return prev;
-}
-
-/*
- * Split a full leaf block to make room for a new dir entry.
- * Allocate a new block, and move entries so that they are approx. equally full.
- * Returns pointer to de in block into which the new entry will be inserted.
- */
-static struct ext3_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
-			struct buffer_head **bh,struct dx_frame *frame,
-			struct dx_hash_info *hinfo, int *error)
-{
-	unsigned blocksize = dir->i_sb->s_blocksize;
-	unsigned count, continued;
-	struct buffer_head *bh2;
-	u32 newblock;
-	u32 hash2;
-	struct dx_map_entry *map;
-	char *data1 = (*bh)->b_data, *data2;
-	unsigned split, move, size;
-	struct ext3_dir_entry_2 *de = NULL, *de2;
-	int	err = 0, i;
-
-	bh2 = ext3_append (handle, dir, &newblock, &err);
-	if (!(bh2)) {
-		brelse(*bh);
-		*bh = NULL;
-		goto errout;
-	}
-
-	BUFFER_TRACE(*bh, "get_write_access");
-	err = ext3_journal_get_write_access(handle, *bh);
-	if (err)
-		goto journal_error;
-
-	BUFFER_TRACE(frame->bh, "get_write_access");
-	err = ext3_journal_get_write_access(handle, frame->bh);
-	if (err)
-		goto journal_error;
-
-	data2 = bh2->b_data;
-
-	/* create map in the end of data2 block */
-	map = (struct dx_map_entry *) (data2 + blocksize);
-	count = dx_make_map ((struct ext3_dir_entry_2 *) data1,
-			     blocksize, hinfo, map);
-	map -= count;
-	dx_sort_map (map, count);
-	/* Split the existing block in the middle, size-wise */
-	size = 0;
-	move = 0;
-	for (i = count-1; i >= 0; i--) {
-		/* is more than half of this entry in 2nd half of the block? */
-		if (size + map[i].size/2 > blocksize/2)
-			break;
-		size += map[i].size;
-		move++;
-	}
-	/* map index at which we will split */
-	split = count - move;
-	hash2 = map[split].hash;
-	continued = hash2 == map[split - 1].hash;
-	dxtrace(printk("Split block %i at %x, %i/%i\n",
-		dx_get_block(frame->at), hash2, split, count-split));
-
-	/* Fancy dance to stay within two buffers */
-	de2 = dx_move_dirents(data1, data2, map + split, count - split);
-	de = dx_pack_dirents(data1,blocksize);
-	de->rec_len = ext3_rec_len_to_disk(data1 + blocksize - (char *) de);
-	de2->rec_len = ext3_rec_len_to_disk(data2 + blocksize - (char *) de2);
-	dxtrace(dx_show_leaf (hinfo, (struct ext3_dir_entry_2 *) data1, blocksize, 1));
-	dxtrace(dx_show_leaf (hinfo, (struct ext3_dir_entry_2 *) data2, blocksize, 1));
-
-	/* Which block gets the new entry? */
-	if (hinfo->hash >= hash2)
-	{
-		swap(*bh, bh2);
-		de = de2;
-	}
-	dx_insert_block (frame, hash2 + continued, newblock);
-	err = ext3_journal_dirty_metadata (handle, bh2);
-	if (err)
-		goto journal_error;
-	err = ext3_journal_dirty_metadata (handle, frame->bh);
-	if (err)
-		goto journal_error;
-	brelse (bh2);
-	dxtrace(dx_show_index ("frame", frame->entries));
-	return de;
-
-journal_error:
-	brelse(*bh);
-	brelse(bh2);
-	*bh = NULL;
-	ext3_std_error(dir->i_sb, err);
-errout:
-	*error = err;
-	return NULL;
-}
-
-
-/*
- * Add a new entry into a directory (leaf) block.  If de is non-NULL,
- * it points to a directory entry which is guaranteed to be large
- * enough for new directory entry.  If de is NULL, then
- * add_dirent_to_buf will attempt search the directory block for
- * space.  It will return -ENOSPC if no space is available, and -EIO
- * and -EEXIST if directory entry already exists.
- *
- * NOTE!  bh is NOT released in the case where ENOSPC is returned.  In
- * all other cases bh is released.
- */
-static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
-			     struct inode *inode, struct ext3_dir_entry_2 *de,
-			     struct buffer_head * bh)
-{
-	struct inode	*dir = d_inode(dentry->d_parent);
-	const char	*name = dentry->d_name.name;
-	int		namelen = dentry->d_name.len;
-	unsigned long	offset = 0;
-	unsigned short	reclen;
-	int		nlen, rlen, err;
-	char		*top;
-
-	reclen = EXT3_DIR_REC_LEN(namelen);
-	if (!de) {
-		de = (struct ext3_dir_entry_2 *)bh->b_data;
-		top = bh->b_data + dir->i_sb->s_blocksize - reclen;
-		while ((char *) de <= top) {
-			if (!ext3_check_dir_entry("ext3_add_entry", dir, de,
-						  bh, offset)) {
-				brelse (bh);
-				return -EIO;
-			}
-			if (ext3_match (namelen, name, de)) {
-				brelse (bh);
-				return -EEXIST;
-			}
-			nlen = EXT3_DIR_REC_LEN(de->name_len);
-			rlen = ext3_rec_len_from_disk(de->rec_len);
-			if ((de->inode? rlen - nlen: rlen) >= reclen)
-				break;
-			de = (struct ext3_dir_entry_2 *)((char *)de + rlen);
-			offset += rlen;
-		}
-		if ((char *) de > top)
-			return -ENOSPC;
-	}
-	BUFFER_TRACE(bh, "get_write_access");
-	err = ext3_journal_get_write_access(handle, bh);
-	if (err) {
-		ext3_std_error(dir->i_sb, err);
-		brelse(bh);
-		return err;
-	}
-
-	/* By now the buffer is marked for journaling */
-	nlen = EXT3_DIR_REC_LEN(de->name_len);
-	rlen = ext3_rec_len_from_disk(de->rec_len);
-	if (de->inode) {
-		struct ext3_dir_entry_2 *de1 = (struct ext3_dir_entry_2 *)((char *)de + nlen);
-		de1->rec_len = ext3_rec_len_to_disk(rlen - nlen);
-		de->rec_len = ext3_rec_len_to_disk(nlen);
-		de = de1;
-	}
-	de->file_type = EXT3_FT_UNKNOWN;
-	if (inode) {
-		de->inode = cpu_to_le32(inode->i_ino);
-		ext3_set_de_type(dir->i_sb, de, inode->i_mode);
-	} else
-		de->inode = 0;
-	de->name_len = namelen;
-	memcpy (de->name, name, namelen);
-	/*
-	 * XXX shouldn't update any times until successful
-	 * completion of syscall, but too many callers depend
-	 * on this.
-	 *
-	 * XXX similarly, too many callers depend on
-	 * ext3_new_inode() setting the times, but error
-	 * recovery deletes the inode, so the worst that can
-	 * happen is that the times are slightly out of date
-	 * and/or different from the directory change time.
-	 */
-	dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
-	ext3_update_dx_flag(dir);
-	dir->i_version++;
-	ext3_mark_inode_dirty(handle, dir);
-	BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
-	err = ext3_journal_dirty_metadata(handle, bh);
-	if (err)
-		ext3_std_error(dir->i_sb, err);
-	brelse(bh);
-	return 0;
-}
-
-/*
- * This converts a one block unindexed directory to a 3 block indexed
- * directory, and adds the dentry to the indexed directory.
- */
-static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
-			    struct inode *inode, struct buffer_head *bh)
-{
-	struct inode	*dir = d_inode(dentry->d_parent);
-	const char	*name = dentry->d_name.name;
-	int		namelen = dentry->d_name.len;
-	struct buffer_head *bh2;
-	struct dx_root	*root;
-	struct dx_frame	frames[2], *frame;
-	struct dx_entry *entries;
-	struct ext3_dir_entry_2	*de, *de2;
-	char		*data1, *top;
-	unsigned	len;
-	int		retval;
-	unsigned	blocksize;
-	struct dx_hash_info hinfo;
-	u32		block;
-	struct fake_dirent *fde;
-
-	blocksize =  dir->i_sb->s_blocksize;
-	dxtrace(printk(KERN_DEBUG "Creating index: inode %lu\n", dir->i_ino));
-	retval = ext3_journal_get_write_access(handle, bh);
-	if (retval) {
-		ext3_std_error(dir->i_sb, retval);
-		brelse(bh);
-		return retval;
-	}
-	root = (struct dx_root *) bh->b_data;
-
-	/* The 0th block becomes the root, move the dirents out */
-	fde = &root->dotdot;
-	de = (struct ext3_dir_entry_2 *)((char *)fde +
-			ext3_rec_len_from_disk(fde->rec_len));
-	if ((char *) de >= (((char *) root) + blocksize)) {
-		ext3_error(dir->i_sb, __func__,
-			   "invalid rec_len for '..' in inode %lu",
-			   dir->i_ino);
-		brelse(bh);
-		return -EIO;
-	}
-	len = ((char *) root) + blocksize - (char *) de;
-
-	bh2 = ext3_append (handle, dir, &block, &retval);
-	if (!(bh2)) {
-		brelse(bh);
-		return retval;
-	}
-	EXT3_I(dir)->i_flags |= EXT3_INDEX_FL;
-	data1 = bh2->b_data;
-
-	memcpy (data1, de, len);
-	de = (struct ext3_dir_entry_2 *) data1;
-	top = data1 + len;
-	while ((char *)(de2 = ext3_next_entry(de)) < top)
-		de = de2;
-	de->rec_len = ext3_rec_len_to_disk(data1 + blocksize - (char *) de);
-	/* Initialize the root; the dot dirents already exist */
-	de = (struct ext3_dir_entry_2 *) (&root->dotdot);
-	de->rec_len = ext3_rec_len_to_disk(blocksize - EXT3_DIR_REC_LEN(2));
-	memset (&root->info, 0, sizeof(root->info));
-	root->info.info_length = sizeof(root->info);
-	root->info.hash_version = EXT3_SB(dir->i_sb)->s_def_hash_version;
-	entries = root->entries;
-	dx_set_block (entries, 1);
-	dx_set_count (entries, 1);
-	dx_set_limit (entries, dx_root_limit(dir, sizeof(root->info)));
-
-	/* Initialize as for dx_probe */
-	hinfo.hash_version = root->info.hash_version;
-	if (hinfo.hash_version <= DX_HASH_TEA)
-		hinfo.hash_version += EXT3_SB(dir->i_sb)->s_hash_unsigned;
-	hinfo.seed = EXT3_SB(dir->i_sb)->s_hash_seed;
-	ext3fs_dirhash(name, namelen, &hinfo);
-	frame = frames;
-	frame->entries = entries;
-	frame->at = entries;
-	frame->bh = bh;
-	bh = bh2;
-	/*
-	 * Mark buffers dirty here so that if do_split() fails we write a
-	 * consistent set of buffers to disk.
-	 */
-	ext3_journal_dirty_metadata(handle, frame->bh);
-	ext3_journal_dirty_metadata(handle, bh);
-	de = do_split(handle,dir, &bh, frame, &hinfo, &retval);
-	if (!de) {
-		ext3_mark_inode_dirty(handle, dir);
-		dx_release(frames);
-		return retval;
-	}
-	dx_release(frames);
-
-	return add_dirent_to_buf(handle, dentry, inode, de, bh);
-}
-
-/*
- *	ext3_add_entry()
- *
- * adds a file entry to the specified directory, using the same
- * semantics as ext3_find_entry(). It returns NULL if it failed.
- *
- * NOTE!! The inode part of 'de' is left at 0 - which means you
- * may not sleep between calling this and putting something into
- * the entry, as someone else might have used it while you slept.
- */
-static int ext3_add_entry (handle_t *handle, struct dentry *dentry,
-	struct inode *inode)
-{
-	struct inode *dir = d_inode(dentry->d_parent);
-	struct buffer_head * bh;
-	struct ext3_dir_entry_2 *de;
-	struct super_block * sb;
-	int	retval;
-	int	dx_fallback=0;
-	unsigned blocksize;
-	u32 block, blocks;
-
-	sb = dir->i_sb;
-	blocksize = sb->s_blocksize;
-	if (!dentry->d_name.len)
-		return -EINVAL;
-	if (is_dx(dir)) {
-		retval = ext3_dx_add_entry(handle, dentry, inode);
-		if (!retval || (retval != ERR_BAD_DX_DIR))
-			return retval;
-		EXT3_I(dir)->i_flags &= ~EXT3_INDEX_FL;
-		dx_fallback++;
-		ext3_mark_inode_dirty(handle, dir);
-	}
-	blocks = dir->i_size >> sb->s_blocksize_bits;
-	for (block = 0; block < blocks; block++) {
-		if (!(bh = ext3_dir_bread(handle, dir, block, 0, &retval)))
-			return retval;
-
-		retval = add_dirent_to_buf(handle, dentry, inode, NULL, bh);
-		if (retval != -ENOSPC)
-			return retval;
-
-		if (blocks == 1 && !dx_fallback &&
-		    EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_DIR_INDEX))
-			return make_indexed_dir(handle, dentry, inode, bh);
-		brelse(bh);
-	}
-	bh = ext3_append(handle, dir, &block, &retval);
-	if (!bh)
-		return retval;
-	de = (struct ext3_dir_entry_2 *) bh->b_data;
-	de->inode = 0;
-	de->rec_len = ext3_rec_len_to_disk(blocksize);
-	return add_dirent_to_buf(handle, dentry, inode, de, bh);
-}
-
-/*
- * Returns 0 for success, or a negative error value
- */
-static int ext3_dx_add_entry(handle_t *handle, struct dentry *dentry,
-			     struct inode *inode)
-{
-	struct dx_frame frames[2], *frame;
-	struct dx_entry *entries, *at;
-	struct dx_hash_info hinfo;
-	struct buffer_head * bh;
-	struct inode *dir = d_inode(dentry->d_parent);
-	struct super_block * sb = dir->i_sb;
-	struct ext3_dir_entry_2 *de;
-	int err;
-
-	frame = dx_probe(&dentry->d_name, dir, &hinfo, frames, &err);
-	if (!frame)
-		return err;
-	entries = frame->entries;
-	at = frame->at;
-
-	if (!(bh = ext3_dir_bread(handle, dir, dx_get_block(frame->at), 0, &err)))
-		goto cleanup;
-
-	BUFFER_TRACE(bh, "get_write_access");
-	err = ext3_journal_get_write_access(handle, bh);
-	if (err)
-		goto journal_error;
-
-	err = add_dirent_to_buf(handle, dentry, inode, NULL, bh);
-	if (err != -ENOSPC) {
-		bh = NULL;
-		goto cleanup;
-	}
-
-	/* Block full, should compress but for now just split */
-	dxtrace(printk("using %u of %u node entries\n",
-		       dx_get_count(entries), dx_get_limit(entries)));
-	/* Need to split index? */
-	if (dx_get_count(entries) == dx_get_limit(entries)) {
-		u32 newblock;
-		unsigned icount = dx_get_count(entries);
-		int levels = frame - frames;
-		struct dx_entry *entries2;
-		struct dx_node *node2;
-		struct buffer_head *bh2;
-
-		if (levels && (dx_get_count(frames->entries) ==
-			       dx_get_limit(frames->entries))) {
-			ext3_warning(sb, __func__,
-				     "Directory index full!");
-			err = -ENOSPC;
-			goto cleanup;
-		}
-		bh2 = ext3_append (handle, dir, &newblock, &err);
-		if (!(bh2))
-			goto cleanup;
-		node2 = (struct dx_node *)(bh2->b_data);
-		entries2 = node2->entries;
-		memset(&node2->fake, 0, sizeof(struct fake_dirent));
-		node2->fake.rec_len = ext3_rec_len_to_disk(sb->s_blocksize);
-		BUFFER_TRACE(frame->bh, "get_write_access");
-		err = ext3_journal_get_write_access(handle, frame->bh);
-		if (err)
-			goto journal_error;
-		if (levels) {
-			unsigned icount1 = icount/2, icount2 = icount - icount1;
-			unsigned hash2 = dx_get_hash(entries + icount1);
-			dxtrace(printk("Split index %i/%i\n", icount1, icount2));
-
-			BUFFER_TRACE(frame->bh, "get_write_access"); /* index root */
-			err = ext3_journal_get_write_access(handle,
-							     frames[0].bh);
-			if (err)
-				goto journal_error;
-
-			memcpy ((char *) entries2, (char *) (entries + icount1),
-				icount2 * sizeof(struct dx_entry));
-			dx_set_count (entries, icount1);
-			dx_set_count (entries2, icount2);
-			dx_set_limit (entries2, dx_node_limit(dir));
-
-			/* Which index block gets the new entry? */
-			if (at - entries >= icount1) {
-				frame->at = at = at - entries - icount1 + entries2;
-				frame->entries = entries = entries2;
-				swap(frame->bh, bh2);
-			}
-			dx_insert_block (frames + 0, hash2, newblock);
-			dxtrace(dx_show_index ("node", frames[1].entries));
-			dxtrace(dx_show_index ("node",
-			       ((struct dx_node *) bh2->b_data)->entries));
-			err = ext3_journal_dirty_metadata(handle, bh2);
-			if (err)
-				goto journal_error;
-			brelse (bh2);
-		} else {
-			dxtrace(printk("Creating second level index...\n"));
-			memcpy((char *) entries2, (char *) entries,
-			       icount * sizeof(struct dx_entry));
-			dx_set_limit(entries2, dx_node_limit(dir));
-
-			/* Set up root */
-			dx_set_count(entries, 1);
-			dx_set_block(entries + 0, newblock);
-			((struct dx_root *) frames[0].bh->b_data)->info.indirect_levels = 1;
-
-			/* Add new access path frame */
-			frame = frames + 1;
-			frame->at = at = at - entries + entries2;
-			frame->entries = entries = entries2;
-			frame->bh = bh2;
-			err = ext3_journal_get_write_access(handle,
-							     frame->bh);
-			if (err)
-				goto journal_error;
-		}
-		err = ext3_journal_dirty_metadata(handle, frames[0].bh);
-		if (err)
-			goto journal_error;
-	}
-	de = do_split(handle, dir, &bh, frame, &hinfo, &err);
-	if (!de)
-		goto cleanup;
-	err = add_dirent_to_buf(handle, dentry, inode, de, bh);
-	bh = NULL;
-	goto cleanup;
-
-journal_error:
-	ext3_std_error(dir->i_sb, err);
-cleanup:
-	if (bh)
-		brelse(bh);
-	dx_release(frames);
-	return err;
-}
-
-/*
- * ext3_delete_entry deletes a directory entry by merging it with the
- * previous entry
- */
-static int ext3_delete_entry (handle_t *handle,
-			      struct inode * dir,
-			      struct ext3_dir_entry_2 * de_del,
-			      struct buffer_head * bh)
-{
-	struct ext3_dir_entry_2 * de, * pde;
-	int i;
-
-	i = 0;
-	pde = NULL;
-	de = (struct ext3_dir_entry_2 *) bh->b_data;
-	while (i < bh->b_size) {
-		if (!ext3_check_dir_entry("ext3_delete_entry", dir, de, bh, i))
-			return -EIO;
-		if (de == de_del)  {
-			int err;
-
-			BUFFER_TRACE(bh, "get_write_access");
-			err = ext3_journal_get_write_access(handle, bh);
-			if (err)
-				goto journal_error;
-
-			if (pde)
-				pde->rec_len = ext3_rec_len_to_disk(
-					ext3_rec_len_from_disk(pde->rec_len) +
-					ext3_rec_len_from_disk(de->rec_len));
-			else
-				de->inode = 0;
-			dir->i_version++;
-			BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata");
-			err = ext3_journal_dirty_metadata(handle, bh);
-			if (err) {
-journal_error:
-				ext3_std_error(dir->i_sb, err);
-				return err;
-			}
-			return 0;
-		}
-		i += ext3_rec_len_from_disk(de->rec_len);
-		pde = de;
-		de = ext3_next_entry(de);
-	}
-	return -ENOENT;
-}
-
-static int ext3_add_nondir(handle_t *handle,
-		struct dentry *dentry, struct inode *inode)
-{
-	int err = ext3_add_entry(handle, dentry, inode);
-	if (!err) {
-		ext3_mark_inode_dirty(handle, inode);
-		unlock_new_inode(inode);
-		d_instantiate(dentry, inode);
-		return 0;
-	}
-	drop_nlink(inode);
-	unlock_new_inode(inode);
-	iput(inode);
-	return err;
-}
-
-/*
- * By the time this is called, we already have created
- * the directory cache entry for the new file, but it
- * is so far negative - it has no inode.
- *
- * If the create succeeds, we fill in the inode information
- * with d_instantiate().
- */
-static int ext3_create (struct inode * dir, struct dentry * dentry, umode_t mode,
-		bool excl)
-{
-	handle_t *handle;
-	struct inode * inode;
-	int err, retries = 0;
-
-	dquot_initialize(dir);
-
-retry:
-	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
-					EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
-					EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	if (IS_DIRSYNC(dir))
-		handle->h_sync = 1;
-
-	inode = ext3_new_inode (handle, dir, &dentry->d_name, mode);
-	err = PTR_ERR(inode);
-	if (!IS_ERR(inode)) {
-		inode->i_op = &ext3_file_inode_operations;
-		inode->i_fop = &ext3_file_operations;
-		ext3_set_aops(inode);
-		err = ext3_add_nondir(handle, dentry, inode);
-	}
-	ext3_journal_stop(handle);
-	if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
-		goto retry;
-	return err;
-}
-
-static int ext3_mknod (struct inode * dir, struct dentry *dentry,
-			umode_t mode, dev_t rdev)
-{
-	handle_t *handle;
-	struct inode *inode;
-	int err, retries = 0;
-
-	if (!new_valid_dev(rdev))
-		return -EINVAL;
-
-	dquot_initialize(dir);
-
-retry:
-	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
-					EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
-					EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	if (IS_DIRSYNC(dir))
-		handle->h_sync = 1;
-
-	inode = ext3_new_inode (handle, dir, &dentry->d_name, mode);
-	err = PTR_ERR(inode);
-	if (!IS_ERR(inode)) {
-		init_special_inode(inode, inode->i_mode, rdev);
-#ifdef CONFIG_EXT3_FS_XATTR
-		inode->i_op = &ext3_special_inode_operations;
-#endif
-		err = ext3_add_nondir(handle, dentry, inode);
-	}
-	ext3_journal_stop(handle);
-	if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
-		goto retry;
-	return err;
-}
-
-static int ext3_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
-{
-	handle_t *handle;
-	struct inode *inode;
-	int err, retries = 0;
-
-	dquot_initialize(dir);
-
-retry:
-	handle = ext3_journal_start(dir, EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb) +
-			  4 + EXT3_XATTR_TRANS_BLOCKS);
-
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	inode = ext3_new_inode (handle, dir, NULL, mode);
-	err = PTR_ERR(inode);
-	if (!IS_ERR(inode)) {
-		inode->i_op = &ext3_file_inode_operations;
-		inode->i_fop = &ext3_file_operations;
-		ext3_set_aops(inode);
-		d_tmpfile(dentry, inode);
-		err = ext3_orphan_add(handle, inode);
-		if (err)
-			goto err_unlock_inode;
-		mark_inode_dirty(inode);
-		unlock_new_inode(inode);
-	}
-	ext3_journal_stop(handle);
-	if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
-		goto retry;
-	return err;
-err_unlock_inode:
-	ext3_journal_stop(handle);
-	unlock_new_inode(inode);
-	return err;
-}
-
-static int ext3_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
-{
-	handle_t *handle;
-	struct inode * inode;
-	struct buffer_head * dir_block = NULL;
-	struct ext3_dir_entry_2 * de;
-	int err, retries = 0;
-
-	if (dir->i_nlink >= EXT3_LINK_MAX)
-		return -EMLINK;
-
-	dquot_initialize(dir);
-
-retry:
-	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
-					EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
-					EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	if (IS_DIRSYNC(dir))
-		handle->h_sync = 1;
-
-	inode = ext3_new_inode (handle, dir, &dentry->d_name, S_IFDIR | mode);
-	err = PTR_ERR(inode);
-	if (IS_ERR(inode))
-		goto out_stop;
-
-	inode->i_op = &ext3_dir_inode_operations;
-	inode->i_fop = &ext3_dir_operations;
-	inode->i_size = EXT3_I(inode)->i_disksize = inode->i_sb->s_blocksize;
-	if (!(dir_block = ext3_dir_bread(handle, inode, 0, 1, &err)))
-		goto out_clear_inode;
-
-	BUFFER_TRACE(dir_block, "get_write_access");
-	err = ext3_journal_get_write_access(handle, dir_block);
-	if (err)
-		goto out_clear_inode;
-
-	de = (struct ext3_dir_entry_2 *) dir_block->b_data;
-	de->inode = cpu_to_le32(inode->i_ino);
-	de->name_len = 1;
-	de->rec_len = ext3_rec_len_to_disk(EXT3_DIR_REC_LEN(de->name_len));
-	strcpy (de->name, ".");
-	ext3_set_de_type(dir->i_sb, de, S_IFDIR);
-	de = ext3_next_entry(de);
-	de->inode = cpu_to_le32(dir->i_ino);
-	de->rec_len = ext3_rec_len_to_disk(inode->i_sb->s_blocksize -
-					EXT3_DIR_REC_LEN(1));
-	de->name_len = 2;
-	strcpy (de->name, "..");
-	ext3_set_de_type(dir->i_sb, de, S_IFDIR);
-	set_nlink(inode, 2);
-	BUFFER_TRACE(dir_block, "call ext3_journal_dirty_metadata");
-	err = ext3_journal_dirty_metadata(handle, dir_block);
-	if (err)
-		goto out_clear_inode;
-
-	err = ext3_mark_inode_dirty(handle, inode);
-	if (!err)
-		err = ext3_add_entry (handle, dentry, inode);
-
-	if (err) {
-out_clear_inode:
-		clear_nlink(inode);
-		unlock_new_inode(inode);
-		ext3_mark_inode_dirty(handle, inode);
-		iput (inode);
-		goto out_stop;
-	}
-	inc_nlink(dir);
-	ext3_update_dx_flag(dir);
-	err = ext3_mark_inode_dirty(handle, dir);
-	if (err)
-		goto out_clear_inode;
-
-	unlock_new_inode(inode);
-	d_instantiate(dentry, inode);
-out_stop:
-	brelse(dir_block);
-	ext3_journal_stop(handle);
-	if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
-		goto retry;
-	return err;
-}
-
-/*
- * routine to check that the specified directory is empty (for rmdir)
- */
-static int empty_dir (struct inode * inode)
-{
-	unsigned long offset;
-	struct buffer_head * bh;
-	struct ext3_dir_entry_2 * de, * de1;
-	struct super_block * sb;
-	int err = 0;
-
-	sb = inode->i_sb;
-	if (inode->i_size < EXT3_DIR_REC_LEN(1) + EXT3_DIR_REC_LEN(2) ||
-	    !(bh = ext3_dir_bread(NULL, inode, 0, 0, &err))) {
-		if (err)
-			ext3_error(inode->i_sb, __func__,
-				   "error %d reading directory #%lu offset 0",
-				   err, inode->i_ino);
-		else
-			ext3_warning(inode->i_sb, __func__,
-				     "bad directory (dir #%lu) - no data block",
-				     inode->i_ino);
-		return 1;
-	}
-	de = (struct ext3_dir_entry_2 *) bh->b_data;
-	de1 = ext3_next_entry(de);
-	if (le32_to_cpu(de->inode) != inode->i_ino ||
-			!le32_to_cpu(de1->inode) ||
-			strcmp (".", de->name) ||
-			strcmp ("..", de1->name)) {
-		ext3_warning (inode->i_sb, "empty_dir",
-			      "bad directory (dir #%lu) - no `.' or `..'",
-			      inode->i_ino);
-		brelse (bh);
-		return 1;
-	}
-	offset = ext3_rec_len_from_disk(de->rec_len) +
-			ext3_rec_len_from_disk(de1->rec_len);
-	de = ext3_next_entry(de1);
-	while (offset < inode->i_size ) {
-		if (!bh ||
-			(void *) de >= (void *) (bh->b_data+sb->s_blocksize)) {
-			err = 0;
-			brelse (bh);
-			if (!(bh = ext3_dir_bread (NULL, inode,
-				offset >> EXT3_BLOCK_SIZE_BITS(sb), 0, &err))) {
-				if (err)
-					ext3_error(sb, __func__,
-						   "error %d reading directory"
-						   " #%lu offset %lu",
-						   err, inode->i_ino, offset);
-				offset += sb->s_blocksize;
-				continue;
-			}
-			de = (struct ext3_dir_entry_2 *) bh->b_data;
-		}
-		if (!ext3_check_dir_entry("empty_dir", inode, de, bh, offset)) {
-			de = (struct ext3_dir_entry_2 *)(bh->b_data +
-							 sb->s_blocksize);
-			offset = (offset | (sb->s_blocksize - 1)) + 1;
-			continue;
-		}
-		if (le32_to_cpu(de->inode)) {
-			brelse (bh);
-			return 0;
-		}
-		offset += ext3_rec_len_from_disk(de->rec_len);
-		de = ext3_next_entry(de);
-	}
-	brelse (bh);
-	return 1;
-}
-
-/* ext3_orphan_add() links an unlinked or truncated inode into a list of
- * such inodes, starting at the superblock, in case we crash before the
- * file is closed/deleted, or in case the inode truncate spans multiple
- * transactions and the last transaction is not recovered after a crash.
- *
- * At filesystem recovery time, we walk this list deleting unlinked
- * inodes and truncating linked inodes in ext3_orphan_cleanup().
- */
-int ext3_orphan_add(handle_t *handle, struct inode *inode)
-{
-	struct super_block *sb = inode->i_sb;
-	struct ext3_iloc iloc;
-	int err = 0, rc;
-
-	mutex_lock(&EXT3_SB(sb)->s_orphan_lock);
-	if (!list_empty(&EXT3_I(inode)->i_orphan))
-		goto out_unlock;
-
-	/* Orphan handling is only valid for files with data blocks
-	 * being truncated, or files being unlinked. */
-
-	/* @@@ FIXME: Observation from aviro:
-	 * I think I can trigger J_ASSERT in ext3_orphan_add().  We block
-	 * here (on s_orphan_lock), so race with ext3_link() which might bump
-	 * ->i_nlink. For, say it, character device. Not a regular file,
-	 * not a directory, not a symlink and ->i_nlink > 0.
-	 *
-	 * tytso, 4/25/2009: I'm not sure how that could happen;
-	 * shouldn't the fs core protect us from these sort of
-	 * unlink()/link() races?
-	 */
-	J_ASSERT ((S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
-		S_ISLNK(inode->i_mode)) || inode->i_nlink == 0);
-
-	BUFFER_TRACE(EXT3_SB(sb)->s_sbh, "get_write_access");
-	err = ext3_journal_get_write_access(handle, EXT3_SB(sb)->s_sbh);
-	if (err)
-		goto out_unlock;
-
-	err = ext3_reserve_inode_write(handle, inode, &iloc);
-	if (err)
-		goto out_unlock;
-
-	/* Insert this inode at the head of the on-disk orphan list... */
-	NEXT_ORPHAN(inode) = le32_to_cpu(EXT3_SB(sb)->s_es->s_last_orphan);
-	EXT3_SB(sb)->s_es->s_last_orphan = cpu_to_le32(inode->i_ino);
-	err = ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
-	rc = ext3_mark_iloc_dirty(handle, inode, &iloc);
-	if (!err)
-		err = rc;
-
-	/* Only add to the head of the in-memory list if all the
-	 * previous operations succeeded.  If the orphan_add is going to
-	 * fail (possibly taking the journal offline), we can't risk
-	 * leaving the inode on the orphan list: stray orphan-list
-	 * entries can cause panics at unmount time.
-	 *
-	 * This is safe: on error we're going to ignore the orphan list
-	 * anyway on the next recovery. */
-	if (!err)
-		list_add(&EXT3_I(inode)->i_orphan, &EXT3_SB(sb)->s_orphan);
-
-	jbd_debug(4, "superblock will point to %lu\n", inode->i_ino);
-	jbd_debug(4, "orphan inode %lu will point to %d\n",
-			inode->i_ino, NEXT_ORPHAN(inode));
-out_unlock:
-	mutex_unlock(&EXT3_SB(sb)->s_orphan_lock);
-	ext3_std_error(inode->i_sb, err);
-	return err;
-}
-
-/*
- * ext3_orphan_del() removes an unlinked or truncated inode from the list
- * of such inodes stored on disk, because it is finally being cleaned up.
- */
-int ext3_orphan_del(handle_t *handle, struct inode *inode)
-{
-	struct list_head *prev;
-	struct ext3_inode_info *ei = EXT3_I(inode);
-	struct ext3_sb_info *sbi;
-	unsigned long ino_next;
-	struct ext3_iloc iloc;
-	int err = 0;
-
-	mutex_lock(&EXT3_SB(inode->i_sb)->s_orphan_lock);
-	if (list_empty(&ei->i_orphan))
-		goto out;
-
-	ino_next = NEXT_ORPHAN(inode);
-	prev = ei->i_orphan.prev;
-	sbi = EXT3_SB(inode->i_sb);
-
-	jbd_debug(4, "remove inode %lu from orphan list\n", inode->i_ino);
-
-	list_del_init(&ei->i_orphan);
-
-	/* If we're on an error path, we may not have a valid
-	 * transaction handle with which to update the orphan list on
-	 * disk, but we still need to remove the inode from the linked
-	 * list in memory. */
-	if (!handle)
-		goto out;
-
-	err = ext3_reserve_inode_write(handle, inode, &iloc);
-	if (err)
-		goto out_err;
-
-	if (prev == &sbi->s_orphan) {
-		jbd_debug(4, "superblock will point to %lu\n", ino_next);
-		BUFFER_TRACE(sbi->s_sbh, "get_write_access");
-		err = ext3_journal_get_write_access(handle, sbi->s_sbh);
-		if (err)
-			goto out_brelse;
-		sbi->s_es->s_last_orphan = cpu_to_le32(ino_next);
-		err = ext3_journal_dirty_metadata(handle, sbi->s_sbh);
-	} else {
-		struct ext3_iloc iloc2;
-		struct inode *i_prev =
-			&list_entry(prev, struct ext3_inode_info, i_orphan)->vfs_inode;
-
-		jbd_debug(4, "orphan inode %lu will point to %lu\n",
-			  i_prev->i_ino, ino_next);
-		err = ext3_reserve_inode_write(handle, i_prev, &iloc2);
-		if (err)
-			goto out_brelse;
-		NEXT_ORPHAN(i_prev) = ino_next;
-		err = ext3_mark_iloc_dirty(handle, i_prev, &iloc2);
-	}
-	if (err)
-		goto out_brelse;
-	NEXT_ORPHAN(inode) = 0;
-	err = ext3_mark_iloc_dirty(handle, inode, &iloc);
-
-out_err:
-	ext3_std_error(inode->i_sb, err);
-out:
-	mutex_unlock(&EXT3_SB(inode->i_sb)->s_orphan_lock);
-	return err;
-
-out_brelse:
-	brelse(iloc.bh);
-	goto out_err;
-}
-
-static int ext3_rmdir (struct inode * dir, struct dentry *dentry)
-{
-	int retval;
-	struct inode * inode;
-	struct buffer_head * bh;
-	struct ext3_dir_entry_2 * de;
-	handle_t *handle;
-
-	/* Initialize quotas before so that eventual writes go in
-	 * separate transaction */
-	dquot_initialize(dir);
-	dquot_initialize(d_inode(dentry));
-
-	handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	retval = -ENOENT;
-	bh = ext3_find_entry(dir, &dentry->d_name, &de);
-	if (!bh)
-		goto end_rmdir;
-
-	if (IS_DIRSYNC(dir))
-		handle->h_sync = 1;
-
-	inode = d_inode(dentry);
-
-	retval = -EIO;
-	if (le32_to_cpu(de->inode) != inode->i_ino)
-		goto end_rmdir;
-
-	retval = -ENOTEMPTY;
-	if (!empty_dir (inode))
-		goto end_rmdir;
-
-	retval = ext3_delete_entry(handle, dir, de, bh);
-	if (retval)
-		goto end_rmdir;
-	if (inode->i_nlink != 2)
-		ext3_warning (inode->i_sb, "ext3_rmdir",
-			      "empty directory has nlink!=2 (%d)",
-			      inode->i_nlink);
-	inode->i_version++;
-	clear_nlink(inode);
-	/* There's no need to set i_disksize: the fact that i_nlink is
-	 * zero will ensure that the right thing happens during any
-	 * recovery. */
-	inode->i_size = 0;
-	ext3_orphan_add(handle, inode);
-	inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
-	ext3_mark_inode_dirty(handle, inode);
-	drop_nlink(dir);
-	ext3_update_dx_flag(dir);
-	ext3_mark_inode_dirty(handle, dir);
-
-end_rmdir:
-	ext3_journal_stop(handle);
-	brelse (bh);
-	return retval;
-}
-
-static int ext3_unlink(struct inode * dir, struct dentry *dentry)
-{
-	int retval;
-	struct inode * inode;
-	struct buffer_head * bh;
-	struct ext3_dir_entry_2 * de;
-	handle_t *handle;
-
-	trace_ext3_unlink_enter(dir, dentry);
-	/* Initialize quotas before so that eventual writes go
-	 * in separate transaction */
-	dquot_initialize(dir);
-	dquot_initialize(d_inode(dentry));
-
-	handle = ext3_journal_start(dir, EXT3_DELETE_TRANS_BLOCKS(dir->i_sb));
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	if (IS_DIRSYNC(dir))
-		handle->h_sync = 1;
-
-	retval = -ENOENT;
-	bh = ext3_find_entry(dir, &dentry->d_name, &de);
-	if (!bh)
-		goto end_unlink;
-
-	inode = d_inode(dentry);
-
-	retval = -EIO;
-	if (le32_to_cpu(de->inode) != inode->i_ino)
-		goto end_unlink;
-
-	if (!inode->i_nlink) {
-		ext3_warning (inode->i_sb, "ext3_unlink",
-			      "Deleting nonexistent file (%lu), %d",
-			      inode->i_ino, inode->i_nlink);
-		set_nlink(inode, 1);
-	}
-	retval = ext3_delete_entry(handle, dir, de, bh);
-	if (retval)
-		goto end_unlink;
-	dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
-	ext3_update_dx_flag(dir);
-	ext3_mark_inode_dirty(handle, dir);
-	drop_nlink(inode);
-	if (!inode->i_nlink)
-		ext3_orphan_add(handle, inode);
-	inode->i_ctime = dir->i_ctime;
-	ext3_mark_inode_dirty(handle, inode);
-	retval = 0;
-
-end_unlink:
-	ext3_journal_stop(handle);
-	brelse (bh);
-	trace_ext3_unlink_exit(dentry, retval);
-	return retval;
-}
-
-static int ext3_symlink (struct inode * dir,
-		struct dentry *dentry, const char * symname)
-{
-	handle_t *handle;
-	struct inode * inode;
-	int l, err, retries = 0;
-	int credits;
-
-	l = strlen(symname)+1;
-	if (l > dir->i_sb->s_blocksize)
-		return -ENAMETOOLONG;
-
-	dquot_initialize(dir);
-
-	if (l > EXT3_N_BLOCKS * 4) {
-		/*
-		 * For non-fast symlinks, we just allocate inode and put it on
-		 * orphan list in the first transaction => we need bitmap,
-		 * group descriptor, sb, inode block, quota blocks, and
-		 * possibly selinux xattr blocks.
-		 */
-		credits = 4 + EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb) +
-			  EXT3_XATTR_TRANS_BLOCKS;
-	} else {
-		/*
-		 * Fast symlink. We have to add entry to directory
-		 * (EXT3_DATA_TRANS_BLOCKS + EXT3_INDEX_EXTRA_TRANS_BLOCKS),
-		 * allocate new inode (bitmap, group descriptor, inode block,
-		 * quota blocks, sb is already counted in previous macros).
-		 */
-		credits = EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
-			  EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
-			  EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb);
-	}
-retry:
-	handle = ext3_journal_start(dir, credits);
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	if (IS_DIRSYNC(dir))
-		handle->h_sync = 1;
-
-	inode = ext3_new_inode (handle, dir, &dentry->d_name, S_IFLNK|S_IRWXUGO);
-	err = PTR_ERR(inode);
-	if (IS_ERR(inode))
-		goto out_stop;
-
-	if (l > EXT3_N_BLOCKS * 4) {
-		inode->i_op = &ext3_symlink_inode_operations;
-		ext3_set_aops(inode);
-		/*
-		 * We cannot call page_symlink() with transaction started
-		 * because it calls into ext3_write_begin() which acquires page
-		 * lock which ranks below transaction start (and it can also
-		 * wait for journal commit if we are running out of space). So
-		 * we have to stop transaction now and restart it when symlink
-		 * contents is written. 
-		 *
-		 * To keep fs consistent in case of crash, we have to put inode
-		 * to orphan list in the mean time.
-		 */
-		drop_nlink(inode);
-		err = ext3_orphan_add(handle, inode);
-		ext3_journal_stop(handle);
-		if (err)
-			goto err_drop_inode;
-		err = __page_symlink(inode, symname, l, 1);
-		if (err)
-			goto err_drop_inode;
-		/*
-		 * Now inode is being linked into dir (EXT3_DATA_TRANS_BLOCKS
-		 * + EXT3_INDEX_EXTRA_TRANS_BLOCKS), inode is also modified
-		 */
-		handle = ext3_journal_start(dir,
-				EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
-				EXT3_INDEX_EXTRA_TRANS_BLOCKS + 1);
-		if (IS_ERR(handle)) {
-			err = PTR_ERR(handle);
-			goto err_drop_inode;
-		}
-		set_nlink(inode, 1);
-		err = ext3_orphan_del(handle, inode);
-		if (err) {
-			ext3_journal_stop(handle);
-			drop_nlink(inode);
-			goto err_drop_inode;
-		}
-	} else {
-		inode->i_op = &ext3_fast_symlink_inode_operations;
-		inode->i_link = (char*)&EXT3_I(inode)->i_data;
-		memcpy(inode->i_link, symname, l);
-		inode->i_size = l-1;
-	}
-	EXT3_I(inode)->i_disksize = inode->i_size;
-	err = ext3_add_nondir(handle, dentry, inode);
-out_stop:
-	ext3_journal_stop(handle);
-	if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
-		goto retry;
-	return err;
-err_drop_inode:
-	unlock_new_inode(inode);
-	iput(inode);
-	return err;
-}
-
-static int ext3_link (struct dentry * old_dentry,
-		struct inode * dir, struct dentry *dentry)
-{
-	handle_t *handle;
-	struct inode *inode = d_inode(old_dentry);
-	int err, retries = 0;
-
-	if (inode->i_nlink >= EXT3_LINK_MAX)
-		return -EMLINK;
-
-	dquot_initialize(dir);
-
-retry:
-	handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
-					EXT3_INDEX_EXTRA_TRANS_BLOCKS + 1);
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	if (IS_DIRSYNC(dir))
-		handle->h_sync = 1;
-
-	inode->i_ctime = CURRENT_TIME_SEC;
-	inc_nlink(inode);
-	ihold(inode);
-
-	err = ext3_add_entry(handle, dentry, inode);
-	if (!err) {
-		ext3_mark_inode_dirty(handle, inode);
-		/* this can happen only for tmpfile being
-		 * linked the first time
-		 */
-		if (inode->i_nlink == 1)
-			ext3_orphan_del(handle, inode);
-		d_instantiate(dentry, inode);
-	} else {
-		drop_nlink(inode);
-		iput(inode);
-	}
-	ext3_journal_stop(handle);
-	if (err == -ENOSPC && ext3_should_retry_alloc(dir->i_sb, &retries))
-		goto retry;
-	return err;
-}
-
-#define PARENT_INO(buffer) \
-	(ext3_next_entry((struct ext3_dir_entry_2 *)(buffer))->inode)
-
-/*
- * Anybody can rename anything with this: the permission checks are left to the
- * higher-level routines.
- */
-static int ext3_rename (struct inode * old_dir, struct dentry *old_dentry,
-			   struct inode * new_dir,struct dentry *new_dentry)
-{
-	handle_t *handle;
-	struct inode * old_inode, * new_inode;
-	struct buffer_head * old_bh, * new_bh, * dir_bh;
-	struct ext3_dir_entry_2 * old_de, * new_de;
-	int retval, flush_file = 0;
-
-	dquot_initialize(old_dir);
-	dquot_initialize(new_dir);
-
-	old_bh = new_bh = dir_bh = NULL;
-
-	/* Initialize quotas before so that eventual writes go
-	 * in separate transaction */
-	if (d_really_is_positive(new_dentry))
-		dquot_initialize(d_inode(new_dentry));
-	handle = ext3_journal_start(old_dir, 2 *
-					EXT3_DATA_TRANS_BLOCKS(old_dir->i_sb) +
-					EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2);
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir))
-		handle->h_sync = 1;
-
-	old_bh = ext3_find_entry(old_dir, &old_dentry->d_name, &old_de);
-	/*
-	 *  Check for inode number is _not_ due to possible IO errors.
-	 *  We might rmdir the source, keep it as pwd of some process
-	 *  and merrily kill the link to whatever was created under the
-	 *  same name. Goodbye sticky bit ;-<
-	 */
-	old_inode = d_inode(old_dentry);
-	retval = -ENOENT;
-	if (!old_bh || le32_to_cpu(old_de->inode) != old_inode->i_ino)
-		goto end_rename;
-
-	new_inode = d_inode(new_dentry);
-	new_bh = ext3_find_entry(new_dir, &new_dentry->d_name, &new_de);
-	if (new_bh) {
-		if (!new_inode) {
-			brelse (new_bh);
-			new_bh = NULL;
-		}
-	}
-	if (S_ISDIR(old_inode->i_mode)) {
-		if (new_inode) {
-			retval = -ENOTEMPTY;
-			if (!empty_dir (new_inode))
-				goto end_rename;
-		}
-		retval = -EIO;
-		dir_bh = ext3_dir_bread(handle, old_inode, 0, 0, &retval);
-		if (!dir_bh)
-			goto end_rename;
-		if (le32_to_cpu(PARENT_INO(dir_bh->b_data)) != old_dir->i_ino)
-			goto end_rename;
-		retval = -EMLINK;
-		if (!new_inode && new_dir!=old_dir &&
-				new_dir->i_nlink >= EXT3_LINK_MAX)
-			goto end_rename;
-	}
-	if (!new_bh) {
-		retval = ext3_add_entry (handle, new_dentry, old_inode);
-		if (retval)
-			goto end_rename;
-	} else {
-		BUFFER_TRACE(new_bh, "get write access");
-		retval = ext3_journal_get_write_access(handle, new_bh);
-		if (retval)
-			goto journal_error;
-		new_de->inode = cpu_to_le32(old_inode->i_ino);
-		if (EXT3_HAS_INCOMPAT_FEATURE(new_dir->i_sb,
-					      EXT3_FEATURE_INCOMPAT_FILETYPE))
-			new_de->file_type = old_de->file_type;
-		new_dir->i_version++;
-		new_dir->i_ctime = new_dir->i_mtime = CURRENT_TIME_SEC;
-		ext3_mark_inode_dirty(handle, new_dir);
-		BUFFER_TRACE(new_bh, "call ext3_journal_dirty_metadata");
-		retval = ext3_journal_dirty_metadata(handle, new_bh);
-		if (retval)
-			goto journal_error;
-		brelse(new_bh);
-		new_bh = NULL;
-	}
-
-	/*
-	 * Like most other Unix systems, set the ctime for inodes on a
-	 * rename.
-	 */
-	old_inode->i_ctime = CURRENT_TIME_SEC;
-	ext3_mark_inode_dirty(handle, old_inode);
-
-	/*
-	 * ok, that's it
-	 */
-	if (le32_to_cpu(old_de->inode) != old_inode->i_ino ||
-	    old_de->name_len != old_dentry->d_name.len ||
-	    strncmp(old_de->name, old_dentry->d_name.name, old_de->name_len) ||
-	    (retval = ext3_delete_entry(handle, old_dir,
-					old_de, old_bh)) == -ENOENT) {
-		/* old_de could have moved from under us during htree split, so
-		 * make sure that we are deleting the right entry.  We might
-		 * also be pointing to a stale entry in the unused part of
-		 * old_bh so just checking inum and the name isn't enough. */
-		struct buffer_head *old_bh2;
-		struct ext3_dir_entry_2 *old_de2;
-
-		old_bh2 = ext3_find_entry(old_dir, &old_dentry->d_name,
-					  &old_de2);
-		if (old_bh2) {
-			retval = ext3_delete_entry(handle, old_dir,
-						   old_de2, old_bh2);
-			brelse(old_bh2);
-		}
-	}
-	if (retval) {
-		ext3_warning(old_dir->i_sb, "ext3_rename",
-				"Deleting old file (%lu), %d, error=%d",
-				old_dir->i_ino, old_dir->i_nlink, retval);
-	}
-
-	if (new_inode) {
-		drop_nlink(new_inode);
-		new_inode->i_ctime = CURRENT_TIME_SEC;
-	}
-	old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME_SEC;
-	ext3_update_dx_flag(old_dir);
-	if (dir_bh) {
-		BUFFER_TRACE(dir_bh, "get_write_access");
-		retval = ext3_journal_get_write_access(handle, dir_bh);
-		if (retval)
-			goto journal_error;
-		PARENT_INO(dir_bh->b_data) = cpu_to_le32(new_dir->i_ino);
-		BUFFER_TRACE(dir_bh, "call ext3_journal_dirty_metadata");
-		retval = ext3_journal_dirty_metadata(handle, dir_bh);
-		if (retval) {
-journal_error:
-			ext3_std_error(new_dir->i_sb, retval);
-			goto end_rename;
-		}
-		drop_nlink(old_dir);
-		if (new_inode) {
-			drop_nlink(new_inode);
-		} else {
-			inc_nlink(new_dir);
-			ext3_update_dx_flag(new_dir);
-			ext3_mark_inode_dirty(handle, new_dir);
-		}
-	}
-	ext3_mark_inode_dirty(handle, old_dir);
-	if (new_inode) {
-		ext3_mark_inode_dirty(handle, new_inode);
-		if (!new_inode->i_nlink)
-			ext3_orphan_add(handle, new_inode);
-		if (ext3_should_writeback_data(new_inode))
-			flush_file = 1;
-	}
-	retval = 0;
-
-end_rename:
-	brelse (dir_bh);
-	brelse (old_bh);
-	brelse (new_bh);
-	ext3_journal_stop(handle);
-	if (retval == 0 && flush_file)
-		filemap_flush(old_inode->i_mapping);
-	return retval;
-}
-
-/*
- * directories can handle most operations...
- */
-const struct inode_operations ext3_dir_inode_operations = {
-	.create		= ext3_create,
-	.lookup		= ext3_lookup,
-	.link		= ext3_link,
-	.unlink		= ext3_unlink,
-	.symlink	= ext3_symlink,
-	.mkdir		= ext3_mkdir,
-	.rmdir		= ext3_rmdir,
-	.mknod		= ext3_mknod,
-	.tmpfile	= ext3_tmpfile,
-	.rename		= ext3_rename,
-	.setattr	= ext3_setattr,
-#ifdef CONFIG_EXT3_FS_XATTR
-	.setxattr	= generic_setxattr,
-	.getxattr	= generic_getxattr,
-	.listxattr	= ext3_listxattr,
-	.removexattr	= generic_removexattr,
-#endif
-	.get_acl	= ext3_get_acl,
-	.set_acl	= ext3_set_acl,
-};
-
-const struct inode_operations ext3_special_inode_operations = {
-	.setattr	= ext3_setattr,
-#ifdef CONFIG_EXT3_FS_XATTR
-	.setxattr	= generic_setxattr,
-	.getxattr	= generic_getxattr,
-	.listxattr	= ext3_listxattr,
-	.removexattr	= generic_removexattr,
-#endif
-	.get_acl	= ext3_get_acl,
-	.set_acl	= ext3_set_acl,
-};
diff --git a/fs/ext3/namei.h b/fs/ext3/namei.h
deleted file mode 100644
index 46304d8c9..000000000
--- a/fs/ext3/namei.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*  linux/fs/ext3/namei.h
- *
- * Copyright (C) 2005 Simtec Electronics
- *	Ben Dooks <ben@simtec.co.uk>
- *
-*/
-
-extern struct dentry *ext3_get_parent(struct dentry *child);
-
-static inline struct buffer_head *ext3_dir_bread(handle_t *handle,
-						 struct inode *inode,
-						 int block, int create,
-						 int *err)
-{
-	struct buffer_head *bh;
-
-	bh = ext3_bread(handle, inode, block, create, err);
-
-	if (!bh && !(*err)) {
-		*err = -EIO;
-		ext3_error(inode->i_sb, __func__,
-			   "Directory hole detected on inode %lu\n",
-			   inode->i_ino);
-		return NULL;
-	}
-	return bh;
-}
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
deleted file mode 100644
index 271056555..000000000
--- a/fs/ext3/resize.c
+++ /dev/null
@@ -1,1117 +0,0 @@
-/*
- *  linux/fs/ext3/resize.c
- *
- * Support for resizing an ext3 filesystem while it is mounted.
- *
- * Copyright (C) 2001, 2002 Andreas Dilger <adilger@clusterfs.com>
- *
- * This could probably be made into a module, because it is not often in use.
- */
-
-
-#define EXT3FS_DEBUG
-
-#include "ext3.h"
-
-
-#define outside(b, first, last)	((b) < (first) || (b) >= (last))
-#define inside(b, first, last)	((b) >= (first) && (b) < (last))
-
-static int verify_group_input(struct super_block *sb,
-			      struct ext3_new_group_data *input)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	struct ext3_super_block *es = sbi->s_es;
-	ext3_fsblk_t start = le32_to_cpu(es->s_blocks_count);
-	ext3_fsblk_t end = start + input->blocks_count;
-	unsigned group = input->group;
-	ext3_fsblk_t itend = input->inode_table + sbi->s_itb_per_group;
-	unsigned overhead = ext3_bg_has_super(sb, group) ?
-		(1 + ext3_bg_num_gdb(sb, group) +
-		 le16_to_cpu(es->s_reserved_gdt_blocks)) : 0;
-	ext3_fsblk_t metaend = start + overhead;
-	struct buffer_head *bh = NULL;
-	ext3_grpblk_t free_blocks_count;
-	int err = -EINVAL;
-
-	input->free_blocks_count = free_blocks_count =
-		input->blocks_count - 2 - overhead - sbi->s_itb_per_group;
-
-	if (test_opt(sb, DEBUG))
-		printk(KERN_DEBUG "EXT3-fs: adding %s group %u: %u blocks "
-		       "(%d free, %u reserved)\n",
-		       ext3_bg_has_super(sb, input->group) ? "normal" :
-		       "no-super", input->group, input->blocks_count,
-		       free_blocks_count, input->reserved_blocks);
-
-	if (group != sbi->s_groups_count)
-		ext3_warning(sb, __func__,
-			     "Cannot add at group %u (only %lu groups)",
-			     input->group, sbi->s_groups_count);
-	else if ((start - le32_to_cpu(es->s_first_data_block)) %
-		 EXT3_BLOCKS_PER_GROUP(sb))
-		ext3_warning(sb, __func__, "Last group not full");
-	else if (input->reserved_blocks > input->blocks_count / 5)
-		ext3_warning(sb, __func__, "Reserved blocks too high (%u)",
-			     input->reserved_blocks);
-	else if (free_blocks_count < 0)
-		ext3_warning(sb, __func__, "Bad blocks count %u",
-			     input->blocks_count);
-	else if (!(bh = sb_bread(sb, end - 1)))
-		ext3_warning(sb, __func__,
-			     "Cannot read last block ("E3FSBLK")",
-			     end - 1);
-	else if (outside(input->block_bitmap, start, end))
-		ext3_warning(sb, __func__,
-			     "Block bitmap not in group (block %u)",
-			     input->block_bitmap);
-	else if (outside(input->inode_bitmap, start, end))
-		ext3_warning(sb, __func__,
-			     "Inode bitmap not in group (block %u)",
-			     input->inode_bitmap);
-	else if (outside(input->inode_table, start, end) ||
-	         outside(itend - 1, start, end))
-		ext3_warning(sb, __func__,
-			     "Inode table not in group (blocks %u-"E3FSBLK")",
-			     input->inode_table, itend - 1);
-	else if (input->inode_bitmap == input->block_bitmap)
-		ext3_warning(sb, __func__,
-			     "Block bitmap same as inode bitmap (%u)",
-			     input->block_bitmap);
-	else if (inside(input->block_bitmap, input->inode_table, itend))
-		ext3_warning(sb, __func__,
-			     "Block bitmap (%u) in inode table (%u-"E3FSBLK")",
-			     input->block_bitmap, input->inode_table, itend-1);
-	else if (inside(input->inode_bitmap, input->inode_table, itend))
-		ext3_warning(sb, __func__,
-			     "Inode bitmap (%u) in inode table (%u-"E3FSBLK")",
-			     input->inode_bitmap, input->inode_table, itend-1);
-	else if (inside(input->block_bitmap, start, metaend))
-		ext3_warning(sb, __func__,
-			     "Block bitmap (%u) in GDT table"
-			     " ("E3FSBLK"-"E3FSBLK")",
-			     input->block_bitmap, start, metaend - 1);
-	else if (inside(input->inode_bitmap, start, metaend))
-		ext3_warning(sb, __func__,
-			     "Inode bitmap (%u) in GDT table"
-			     " ("E3FSBLK"-"E3FSBLK")",
-			     input->inode_bitmap, start, metaend - 1);
-	else if (inside(input->inode_table, start, metaend) ||
-	         inside(itend - 1, start, metaend))
-		ext3_warning(sb, __func__,
-			     "Inode table (%u-"E3FSBLK") overlaps"
-			     "GDT table ("E3FSBLK"-"E3FSBLK")",
-			     input->inode_table, itend - 1, start, metaend - 1);
-	else
-		err = 0;
-	brelse(bh);
-
-	return err;
-}
-
-static struct buffer_head *bclean(handle_t *handle, struct super_block *sb,
-				  ext3_fsblk_t blk)
-{
-	struct buffer_head *bh;
-	int err;
-
-	bh = sb_getblk(sb, blk);
-	if (unlikely(!bh))
-		return ERR_PTR(-ENOMEM);
-	if ((err = ext3_journal_get_write_access(handle, bh))) {
-		brelse(bh);
-		bh = ERR_PTR(err);
-	} else {
-		lock_buffer(bh);
-		memset(bh->b_data, 0, sb->s_blocksize);
-		set_buffer_uptodate(bh);
-		unlock_buffer(bh);
-	}
-
-	return bh;
-}
-
-/*
- * To avoid calling the atomic setbit hundreds or thousands of times, we only
- * need to use it within a single byte (to ensure we get endianness right).
- * We can use memset for the rest of the bitmap as there are no other users.
- */
-static void mark_bitmap_end(int start_bit, int end_bit, char *bitmap)
-{
-	int i;
-
-	if (start_bit >= end_bit)
-		return;
-
-	ext3_debug("mark end bits +%d through +%d used\n", start_bit, end_bit);
-	for (i = start_bit; i < ((start_bit + 7) & ~7UL); i++)
-		ext3_set_bit(i, bitmap);
-	if (i < end_bit)
-		memset(bitmap + (i >> 3), 0xff, (end_bit - i) >> 3);
-}
-
-/*
- * If we have fewer than thresh credits, extend by EXT3_MAX_TRANS_DATA.
- * If that fails, restart the transaction & regain write access for the
- * buffer head which is used for block_bitmap modifications.
- */
-static int extend_or_restart_transaction(handle_t *handle, int thresh,
-					 struct buffer_head *bh)
-{
-	int err;
-
-	if (handle->h_buffer_credits >= thresh)
-		return 0;
-
-	err = ext3_journal_extend(handle, EXT3_MAX_TRANS_DATA);
-	if (err < 0)
-		return err;
-	if (err) {
-		err = ext3_journal_restart(handle, EXT3_MAX_TRANS_DATA);
-		if (err)
-			return err;
-		err = ext3_journal_get_write_access(handle, bh);
-		if (err)
-			return err;
-	}
-
-	return 0;
-}
-
-/*
- * Set up the block and inode bitmaps, and the inode table for the new group.
- * This doesn't need to be part of the main transaction, since we are only
- * changing blocks outside the actual filesystem.  We still do journaling to
- * ensure the recovery is correct in case of a failure just after resize.
- * If any part of this fails, we simply abort the resize.
- */
-static int setup_new_group_blocks(struct super_block *sb,
-				  struct ext3_new_group_data *input)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	ext3_fsblk_t start = ext3_group_first_block_no(sb, input->group);
-	int reserved_gdb = ext3_bg_has_super(sb, input->group) ?
-		le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) : 0;
-	unsigned long gdblocks = ext3_bg_num_gdb(sb, input->group);
-	struct buffer_head *bh;
-	handle_t *handle;
-	ext3_fsblk_t block;
-	ext3_grpblk_t bit;
-	int i;
-	int err = 0, err2;
-
-	/* This transaction may be extended/restarted along the way */
-	handle = ext3_journal_start_sb(sb, EXT3_MAX_TRANS_DATA);
-
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-
-	mutex_lock(&sbi->s_resize_lock);
-	if (input->group != sbi->s_groups_count) {
-		err = -EBUSY;
-		goto exit_journal;
-	}
-
-	if (IS_ERR(bh = bclean(handle, sb, input->block_bitmap))) {
-		err = PTR_ERR(bh);
-		goto exit_journal;
-	}
-
-	if (ext3_bg_has_super(sb, input->group)) {
-		ext3_debug("mark backup superblock %#04lx (+0)\n", start);
-		ext3_set_bit(0, bh->b_data);
-	}
-
-	/* Copy all of the GDT blocks into the backup in this group */
-	for (i = 0, bit = 1, block = start + 1;
-	     i < gdblocks; i++, block++, bit++) {
-		struct buffer_head *gdb;
-
-		ext3_debug("update backup group %#04lx (+%d)\n", block, bit);
-
-		err = extend_or_restart_transaction(handle, 1, bh);
-		if (err)
-			goto exit_bh;
-
-		gdb = sb_getblk(sb, block);
-		if (unlikely(!gdb)) {
-			err = -ENOMEM;
-			goto exit_bh;
-		}
-		if ((err = ext3_journal_get_write_access(handle, gdb))) {
-			brelse(gdb);
-			goto exit_bh;
-		}
-		lock_buffer(gdb);
-		memcpy(gdb->b_data, sbi->s_group_desc[i]->b_data, gdb->b_size);
-		set_buffer_uptodate(gdb);
-		unlock_buffer(gdb);
-		err = ext3_journal_dirty_metadata(handle, gdb);
-		if (err) {
-			brelse(gdb);
-			goto exit_bh;
-		}
-		ext3_set_bit(bit, bh->b_data);
-		brelse(gdb);
-	}
-
-	/* Zero out all of the reserved backup group descriptor table blocks */
-	for (i = 0, bit = gdblocks + 1, block = start + bit;
-	     i < reserved_gdb; i++, block++, bit++) {
-		struct buffer_head *gdb;
-
-		ext3_debug("clear reserved block %#04lx (+%d)\n", block, bit);
-
-		err = extend_or_restart_transaction(handle, 1, bh);
-		if (err)
-			goto exit_bh;
-
-		if (IS_ERR(gdb = bclean(handle, sb, block))) {
-			err = PTR_ERR(gdb);
-			goto exit_bh;
-		}
-		err = ext3_journal_dirty_metadata(handle, gdb);
-		if (err) {
-			brelse(gdb);
-			goto exit_bh;
-		}
-		ext3_set_bit(bit, bh->b_data);
-		brelse(gdb);
-	}
-	ext3_debug("mark block bitmap %#04x (+%ld)\n", input->block_bitmap,
-		   input->block_bitmap - start);
-	ext3_set_bit(input->block_bitmap - start, bh->b_data);
-	ext3_debug("mark inode bitmap %#04x (+%ld)\n", input->inode_bitmap,
-		   input->inode_bitmap - start);
-	ext3_set_bit(input->inode_bitmap - start, bh->b_data);
-
-	/* Zero out all of the inode table blocks */
-	for (i = 0, block = input->inode_table, bit = block - start;
-	     i < sbi->s_itb_per_group; i++, bit++, block++) {
-		struct buffer_head *it;
-
-		ext3_debug("clear inode block %#04lx (+%d)\n", block, bit);
-
-		err = extend_or_restart_transaction(handle, 1, bh);
-		if (err)
-			goto exit_bh;
-
-		if (IS_ERR(it = bclean(handle, sb, block))) {
-			err = PTR_ERR(it);
-			goto exit_bh;
-		}
-		err = ext3_journal_dirty_metadata(handle, it);
-		if (err) {
-			brelse(it);
-			goto exit_bh;
-		}
-		brelse(it);
-		ext3_set_bit(bit, bh->b_data);
-	}
-
-	err = extend_or_restart_transaction(handle, 2, bh);
-	if (err)
-		goto exit_bh;
-
-	mark_bitmap_end(input->blocks_count, EXT3_BLOCKS_PER_GROUP(sb),
-			bh->b_data);
-	err = ext3_journal_dirty_metadata(handle, bh);
-	if (err)
-		goto exit_bh;
-	brelse(bh);
-
-	/* Mark unused entries in inode bitmap used */
-	ext3_debug("clear inode bitmap %#04x (+%ld)\n",
-		   input->inode_bitmap, input->inode_bitmap - start);
-	if (IS_ERR(bh = bclean(handle, sb, input->inode_bitmap))) {
-		err = PTR_ERR(bh);
-		goto exit_journal;
-	}
-
-	mark_bitmap_end(EXT3_INODES_PER_GROUP(sb), EXT3_BLOCKS_PER_GROUP(sb),
-			bh->b_data);
-	err = ext3_journal_dirty_metadata(handle, bh);
-exit_bh:
-	brelse(bh);
-
-exit_journal:
-	mutex_unlock(&sbi->s_resize_lock);
-	if ((err2 = ext3_journal_stop(handle)) && !err)
-		err = err2;
-
-	return err;
-}
-
-/*
- * Iterate through the groups which hold BACKUP superblock/GDT copies in an
- * ext3 filesystem.  The counters should be initialized to 1, 5, and 7 before
- * calling this for the first time.  In a sparse filesystem it will be the
- * sequence of powers of 3, 5, and 7: 1, 3, 5, 7, 9, 25, 27, 49, 81, ...
- * For a non-sparse filesystem it will be every group: 1, 2, 3, 4, ...
- */
-static unsigned ext3_list_backups(struct super_block *sb, unsigned *three,
-				  unsigned *five, unsigned *seven)
-{
-	unsigned *min = three;
-	int mult = 3;
-	unsigned ret;
-
-	if (!EXT3_HAS_RO_COMPAT_FEATURE(sb,
-					EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
-		ret = *min;
-		*min += 1;
-		return ret;
-	}
-
-	if (*five < *min) {
-		min = five;
-		mult = 5;
-	}
-	if (*seven < *min) {
-		min = seven;
-		mult = 7;
-	}
-
-	ret = *min;
-	*min *= mult;
-
-	return ret;
-}
-
-/*
- * Check that all of the backup GDT blocks are held in the primary GDT block.
- * It is assumed that they are stored in group order.  Returns the number of
- * groups in current filesystem that have BACKUPS, or -ve error code.
- */
-static int verify_reserved_gdb(struct super_block *sb,
-			       struct buffer_head *primary)
-{
-	const ext3_fsblk_t blk = primary->b_blocknr;
-	const unsigned long end = EXT3_SB(sb)->s_groups_count;
-	unsigned three = 1;
-	unsigned five = 5;
-	unsigned seven = 7;
-	unsigned grp;
-	__le32 *p = (__le32 *)primary->b_data;
-	int gdbackups = 0;
-
-	while ((grp = ext3_list_backups(sb, &three, &five, &seven)) < end) {
-		if (le32_to_cpu(*p++) != grp * EXT3_BLOCKS_PER_GROUP(sb) + blk){
-			ext3_warning(sb, __func__,
-				     "reserved GDT "E3FSBLK
-				     " missing grp %d ("E3FSBLK")",
-				     blk, grp,
-				     grp * EXT3_BLOCKS_PER_GROUP(sb) + blk);
-			return -EINVAL;
-		}
-		if (++gdbackups > EXT3_ADDR_PER_BLOCK(sb))
-			return -EFBIG;
-	}
-
-	return gdbackups;
-}
-
-/*
- * Called when we need to bring a reserved group descriptor table block into
- * use from the resize inode.  The primary copy of the new GDT block currently
- * is an indirect block (under the double indirect block in the resize inode).
- * The new backup GDT blocks will be stored as leaf blocks in this indirect
- * block, in group order.  Even though we know all the block numbers we need,
- * we check to ensure that the resize inode has actually reserved these blocks.
- *
- * Don't need to update the block bitmaps because the blocks are still in use.
- *
- * We get all of the error cases out of the way, so that we are sure to not
- * fail once we start modifying the data on disk, because JBD has no rollback.
- */
-static int add_new_gdb(handle_t *handle, struct inode *inode,
-		       struct ext3_new_group_data *input,
-		       struct buffer_head **primary)
-{
-	struct super_block *sb = inode->i_sb;
-	struct ext3_super_block *es = EXT3_SB(sb)->s_es;
-	unsigned long gdb_num = input->group / EXT3_DESC_PER_BLOCK(sb);
-	ext3_fsblk_t gdblock = EXT3_SB(sb)->s_sbh->b_blocknr + 1 + gdb_num;
-	struct buffer_head **o_group_desc, **n_group_desc;
-	struct buffer_head *dind;
-	int gdbackups;
-	struct ext3_iloc iloc;
-	__le32 *data;
-	int err;
-
-	if (test_opt(sb, DEBUG))
-		printk(KERN_DEBUG
-		       "EXT3-fs: ext3_add_new_gdb: adding group block %lu\n",
-		       gdb_num);
-
-	/*
-	 * If we are not using the primary superblock/GDT copy don't resize,
-	 * because the user tools have no way of handling this.  Probably a
-	 * bad time to do it anyways.
-	 */
-	if (EXT3_SB(sb)->s_sbh->b_blocknr !=
-	    le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block)) {
-		ext3_warning(sb, __func__,
-			"won't resize using backup superblock at %llu",
-			(unsigned long long)EXT3_SB(sb)->s_sbh->b_blocknr);
-		return -EPERM;
-	}
-
-	*primary = sb_bread(sb, gdblock);
-	if (!*primary)
-		return -EIO;
-
-	if ((gdbackups = verify_reserved_gdb(sb, *primary)) < 0) {
-		err = gdbackups;
-		goto exit_bh;
-	}
-
-	data = EXT3_I(inode)->i_data + EXT3_DIND_BLOCK;
-	dind = sb_bread(sb, le32_to_cpu(*data));
-	if (!dind) {
-		err = -EIO;
-		goto exit_bh;
-	}
-
-	data = (__le32 *)dind->b_data;
-	if (le32_to_cpu(data[gdb_num % EXT3_ADDR_PER_BLOCK(sb)]) != gdblock) {
-		ext3_warning(sb, __func__,
-			     "new group %u GDT block "E3FSBLK" not reserved",
-			     input->group, gdblock);
-		err = -EINVAL;
-		goto exit_dind;
-	}
-
-	if ((err = ext3_journal_get_write_access(handle, EXT3_SB(sb)->s_sbh)))
-		goto exit_dind;
-
-	if ((err = ext3_journal_get_write_access(handle, *primary)))
-		goto exit_sbh;
-
-	if ((err = ext3_journal_get_write_access(handle, dind)))
-		goto exit_primary;
-
-	/* ext3_reserve_inode_write() gets a reference on the iloc */
-	if ((err = ext3_reserve_inode_write(handle, inode, &iloc)))
-		goto exit_dindj;
-
-	n_group_desc = kmalloc((gdb_num + 1) * sizeof(struct buffer_head *),
-			GFP_NOFS);
-	if (!n_group_desc) {
-		err = -ENOMEM;
-		ext3_warning (sb, __func__,
-			      "not enough memory for %lu groups", gdb_num + 1);
-		goto exit_inode;
-	}
-
-	/*
-	 * Finally, we have all of the possible failures behind us...
-	 *
-	 * Remove new GDT block from inode double-indirect block and clear out
-	 * the new GDT block for use (which also "frees" the backup GDT blocks
-	 * from the reserved inode).  We don't need to change the bitmaps for
-	 * these blocks, because they are marked as in-use from being in the
-	 * reserved inode, and will become GDT blocks (primary and backup).
-	 */
-	data[gdb_num % EXT3_ADDR_PER_BLOCK(sb)] = 0;
-	err = ext3_journal_dirty_metadata(handle, dind);
-	if (err)
-		goto exit_group_desc;
-	brelse(dind);
-	dind = NULL;
-	inode->i_blocks -= (gdbackups + 1) * sb->s_blocksize >> 9;
-	err = ext3_mark_iloc_dirty(handle, inode, &iloc);
-	if (err)
-		goto exit_group_desc;
-	memset((*primary)->b_data, 0, sb->s_blocksize);
-	err = ext3_journal_dirty_metadata(handle, *primary);
-	if (err)
-		goto exit_group_desc;
-
-	o_group_desc = EXT3_SB(sb)->s_group_desc;
-	memcpy(n_group_desc, o_group_desc,
-	       EXT3_SB(sb)->s_gdb_count * sizeof(struct buffer_head *));
-	n_group_desc[gdb_num] = *primary;
-	EXT3_SB(sb)->s_group_desc = n_group_desc;
-	EXT3_SB(sb)->s_gdb_count++;
-	kfree(o_group_desc);
-
-	le16_add_cpu(&es->s_reserved_gdt_blocks, -1);
-	err = ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
-	if (err)
-		goto exit_inode;
-
-	return 0;
-
-exit_group_desc:
-	kfree(n_group_desc);
-exit_inode:
-	//ext3_journal_release_buffer(handle, iloc.bh);
-	brelse(iloc.bh);
-exit_dindj:
-	//ext3_journal_release_buffer(handle, dind);
-exit_primary:
-	//ext3_journal_release_buffer(handle, *primary);
-exit_sbh:
-	//ext3_journal_release_buffer(handle, *primary);
-exit_dind:
-	brelse(dind);
-exit_bh:
-	brelse(*primary);
-
-	ext3_debug("leaving with error %d\n", err);
-	return err;
-}
-
-/*
- * Called when we are adding a new group which has a backup copy of each of
- * the GDT blocks (i.e. sparse group) and there are reserved GDT blocks.
- * We need to add these reserved backup GDT blocks to the resize inode, so
- * that they are kept for future resizing and not allocated to files.
- *
- * Each reserved backup GDT block will go into a different indirect block.
- * The indirect blocks are actually the primary reserved GDT blocks,
- * so we know in advance what their block numbers are.  We only get the
- * double-indirect block to verify it is pointing to the primary reserved
- * GDT blocks so we don't overwrite a data block by accident.  The reserved
- * backup GDT blocks are stored in their reserved primary GDT block.
- */
-static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
-			      struct ext3_new_group_data *input)
-{
-	struct super_block *sb = inode->i_sb;
-	int reserved_gdb =le16_to_cpu(EXT3_SB(sb)->s_es->s_reserved_gdt_blocks);
-	struct buffer_head **primary;
-	struct buffer_head *dind;
-	struct ext3_iloc iloc;
-	ext3_fsblk_t blk;
-	__le32 *data, *end;
-	int gdbackups = 0;
-	int res, i;
-	int err;
-
-	primary = kmalloc(reserved_gdb * sizeof(*primary), GFP_NOFS);
-	if (!primary)
-		return -ENOMEM;
-
-	data = EXT3_I(inode)->i_data + EXT3_DIND_BLOCK;
-	dind = sb_bread(sb, le32_to_cpu(*data));
-	if (!dind) {
-		err = -EIO;
-		goto exit_free;
-	}
-
-	blk = EXT3_SB(sb)->s_sbh->b_blocknr + 1 + EXT3_SB(sb)->s_gdb_count;
-	data = (__le32 *)dind->b_data + (EXT3_SB(sb)->s_gdb_count %
-					 EXT3_ADDR_PER_BLOCK(sb));
-	end = (__le32 *)dind->b_data + EXT3_ADDR_PER_BLOCK(sb);
-
-	/* Get each reserved primary GDT block and verify it holds backups */
-	for (res = 0; res < reserved_gdb; res++, blk++) {
-		if (le32_to_cpu(*data) != blk) {
-			ext3_warning(sb, __func__,
-				     "reserved block "E3FSBLK
-				     " not at offset %ld",
-				     blk,
-				     (long)(data - (__le32 *)dind->b_data));
-			err = -EINVAL;
-			goto exit_bh;
-		}
-		primary[res] = sb_bread(sb, blk);
-		if (!primary[res]) {
-			err = -EIO;
-			goto exit_bh;
-		}
-		if ((gdbackups = verify_reserved_gdb(sb, primary[res])) < 0) {
-			brelse(primary[res]);
-			err = gdbackups;
-			goto exit_bh;
-		}
-		if (++data >= end)
-			data = (__le32 *)dind->b_data;
-	}
-
-	for (i = 0; i < reserved_gdb; i++) {
-		if ((err = ext3_journal_get_write_access(handle, primary[i]))) {
-			/*
-			int j;
-			for (j = 0; j < i; j++)
-				ext3_journal_release_buffer(handle, primary[j]);
-			 */
-			goto exit_bh;
-		}
-	}
-
-	if ((err = ext3_reserve_inode_write(handle, inode, &iloc)))
-		goto exit_bh;
-
-	/*
-	 * Finally we can add each of the reserved backup GDT blocks from
-	 * the new group to its reserved primary GDT block.
-	 */
-	blk = input->group * EXT3_BLOCKS_PER_GROUP(sb);
-	for (i = 0; i < reserved_gdb; i++) {
-		int err2;
-		data = (__le32 *)primary[i]->b_data;
-		/* printk("reserving backup %lu[%u] = %lu\n",
-		       primary[i]->b_blocknr, gdbackups,
-		       blk + primary[i]->b_blocknr); */
-		data[gdbackups] = cpu_to_le32(blk + primary[i]->b_blocknr);
-		err2 = ext3_journal_dirty_metadata(handle, primary[i]);
-		if (!err)
-			err = err2;
-	}
-	inode->i_blocks += reserved_gdb * sb->s_blocksize >> 9;
-	ext3_mark_iloc_dirty(handle, inode, &iloc);
-
-exit_bh:
-	while (--res >= 0)
-		brelse(primary[res]);
-	brelse(dind);
-
-exit_free:
-	kfree(primary);
-
-	return err;
-}
-
-/*
- * Update the backup copies of the ext3 metadata.  These don't need to be part
- * of the main resize transaction, because e2fsck will re-write them if there
- * is a problem (basically only OOM will cause a problem).  However, we
- * _should_ update the backups if possible, in case the primary gets trashed
- * for some reason and we need to run e2fsck from a backup superblock.  The
- * important part is that the new block and inode counts are in the backup
- * superblocks, and the location of the new group metadata in the GDT backups.
- *
- * We do not need take the s_resize_lock for this, because these
- * blocks are not otherwise touched by the filesystem code when it is
- * mounted.  We don't need to worry about last changing from
- * sbi->s_groups_count, because the worst that can happen is that we
- * do not copy the full number of backups at this time.  The resize
- * which changed s_groups_count will backup again.
- */
-static void update_backups(struct super_block *sb,
-			   int blk_off, char *data, int size)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	const unsigned long last = sbi->s_groups_count;
-	const int bpg = EXT3_BLOCKS_PER_GROUP(sb);
-	unsigned three = 1;
-	unsigned five = 5;
-	unsigned seven = 7;
-	unsigned group;
-	int rest = sb->s_blocksize - size;
-	handle_t *handle;
-	int err = 0, err2;
-
-	handle = ext3_journal_start_sb(sb, EXT3_MAX_TRANS_DATA);
-	if (IS_ERR(handle)) {
-		group = 1;
-		err = PTR_ERR(handle);
-		goto exit_err;
-	}
-
-	while ((group = ext3_list_backups(sb, &three, &five, &seven)) < last) {
-		struct buffer_head *bh;
-
-		/* Out of journal space, and can't get more - abort - so sad */
-		if (handle->h_buffer_credits == 0 &&
-		    ext3_journal_extend(handle, EXT3_MAX_TRANS_DATA) &&
-		    (err = ext3_journal_restart(handle, EXT3_MAX_TRANS_DATA)))
-			break;
-
-		bh = sb_getblk(sb, group * bpg + blk_off);
-		if (unlikely(!bh)) {
-			err = -ENOMEM;
-			break;
-		}
-		ext3_debug("update metadata backup %#04lx\n",
-			  (unsigned long)bh->b_blocknr);
-		if ((err = ext3_journal_get_write_access(handle, bh))) {
-			brelse(bh);
-			break;
-		}
-		lock_buffer(bh);
-		memcpy(bh->b_data, data, size);
-		if (rest)
-			memset(bh->b_data + size, 0, rest);
-		set_buffer_uptodate(bh);
-		unlock_buffer(bh);
-		err = ext3_journal_dirty_metadata(handle, bh);
-		brelse(bh);
-		if (err)
-			break;
-	}
-	if ((err2 = ext3_journal_stop(handle)) && !err)
-		err = err2;
-
-	/*
-	 * Ugh! Need to have e2fsck write the backup copies.  It is too
-	 * late to revert the resize, we shouldn't fail just because of
-	 * the backup copies (they are only needed in case of corruption).
-	 *
-	 * However, if we got here we have a journal problem too, so we
-	 * can't really start a transaction to mark the superblock.
-	 * Chicken out and just set the flag on the hope it will be written
-	 * to disk, and if not - we will simply wait until next fsck.
-	 */
-exit_err:
-	if (err) {
-		ext3_warning(sb, __func__,
-			     "can't update backup for group %d (err %d), "
-			     "forcing fsck on next reboot", group, err);
-		sbi->s_mount_state &= ~EXT3_VALID_FS;
-		sbi->s_es->s_state &= cpu_to_le16(~EXT3_VALID_FS);
-		mark_buffer_dirty(sbi->s_sbh);
-	}
-}
-
-/* Add group descriptor data to an existing or new group descriptor block.
- * Ensure we handle all possible error conditions _before_ we start modifying
- * the filesystem, because we cannot abort the transaction and not have it
- * write the data to disk.
- *
- * If we are on a GDT block boundary, we need to get the reserved GDT block.
- * Otherwise, we may need to add backup GDT blocks for a sparse group.
- *
- * We only need to hold the superblock lock while we are actually adding
- * in the new group's counts to the superblock.  Prior to that we have
- * not really "added" the group at all.  We re-check that we are still
- * adding in the last group in case things have changed since verifying.
- */
-int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	struct ext3_super_block *es = sbi->s_es;
-	int reserved_gdb = ext3_bg_has_super(sb, input->group) ?
-		le16_to_cpu(es->s_reserved_gdt_blocks) : 0;
-	struct buffer_head *primary = NULL;
-	struct ext3_group_desc *gdp;
-	struct inode *inode = NULL;
-	handle_t *handle;
-	int gdb_off, gdb_num;
-	int err, err2;
-
-	gdb_num = input->group / EXT3_DESC_PER_BLOCK(sb);
-	gdb_off = input->group % EXT3_DESC_PER_BLOCK(sb);
-
-	if (gdb_off == 0 && !EXT3_HAS_RO_COMPAT_FEATURE(sb,
-					EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER)) {
-		ext3_warning(sb, __func__,
-			     "Can't resize non-sparse filesystem further");
-		return -EPERM;
-	}
-
-	if (le32_to_cpu(es->s_blocks_count) + input->blocks_count <
-	    le32_to_cpu(es->s_blocks_count)) {
-		ext3_warning(sb, __func__, "blocks_count overflow\n");
-		return -EINVAL;
-	}
-
-	if (le32_to_cpu(es->s_inodes_count) + EXT3_INODES_PER_GROUP(sb) <
-	    le32_to_cpu(es->s_inodes_count)) {
-		ext3_warning(sb, __func__, "inodes_count overflow\n");
-		return -EINVAL;
-	}
-
-	if (reserved_gdb || gdb_off == 0) {
-		if (!EXT3_HAS_COMPAT_FEATURE(sb,
-					     EXT3_FEATURE_COMPAT_RESIZE_INODE)
-		    || !le16_to_cpu(es->s_reserved_gdt_blocks)) {
-			ext3_warning(sb, __func__,
-				     "No reserved GDT blocks, can't resize");
-			return -EPERM;
-		}
-		inode = ext3_iget(sb, EXT3_RESIZE_INO);
-		if (IS_ERR(inode)) {
-			ext3_warning(sb, __func__,
-				     "Error opening resize inode");
-			return PTR_ERR(inode);
-		}
-	}
-
-	if ((err = verify_group_input(sb, input)))
-		goto exit_put;
-
-	if ((err = setup_new_group_blocks(sb, input)))
-		goto exit_put;
-
-	/*
-	 * We will always be modifying at least the superblock and a GDT
-	 * block.  If we are adding a group past the last current GDT block,
-	 * we will also modify the inode and the dindirect block.  If we
-	 * are adding a group with superblock/GDT backups  we will also
-	 * modify each of the reserved GDT dindirect blocks.
-	 */
-	handle = ext3_journal_start_sb(sb,
-				       ext3_bg_has_super(sb, input->group) ?
-				       3 + reserved_gdb : 4);
-	if (IS_ERR(handle)) {
-		err = PTR_ERR(handle);
-		goto exit_put;
-	}
-
-	mutex_lock(&sbi->s_resize_lock);
-	if (input->group != sbi->s_groups_count) {
-		ext3_warning(sb, __func__,
-			     "multiple resizers run on filesystem!");
-		err = -EBUSY;
-		goto exit_journal;
-	}
-
-	if ((err = ext3_journal_get_write_access(handle, sbi->s_sbh)))
-		goto exit_journal;
-
-	/*
-	 * We will only either add reserved group blocks to a backup group
-	 * or remove reserved blocks for the first group in a new group block.
-	 * Doing both would be mean more complex code, and sane people don't
-	 * use non-sparse filesystems anymore.  This is already checked above.
-	 */
-	if (gdb_off) {
-		primary = sbi->s_group_desc[gdb_num];
-		if ((err = ext3_journal_get_write_access(handle, primary)))
-			goto exit_journal;
-
-		if (reserved_gdb && ext3_bg_num_gdb(sb, input->group) &&
-		    (err = reserve_backup_gdb(handle, inode, input)))
-			goto exit_journal;
-	} else if ((err = add_new_gdb(handle, inode, input, &primary)))
-		goto exit_journal;
-
-	/*
-	 * OK, now we've set up the new group.  Time to make it active.
-	 *
-	 * We do not lock all allocations via s_resize_lock
-	 * so we have to be safe wrt. concurrent accesses the group
-	 * data.  So we need to be careful to set all of the relevant
-	 * group descriptor data etc. *before* we enable the group.
-	 *
-	 * The key field here is sbi->s_groups_count: as long as
-	 * that retains its old value, nobody is going to access the new
-	 * group.
-	 *
-	 * So first we update all the descriptor metadata for the new
-	 * group; then we update the total disk blocks count; then we
-	 * update the groups count to enable the group; then finally we
-	 * update the free space counts so that the system can start
-	 * using the new disk blocks.
-	 */
-
-	/* Update group descriptor block for new group */
-	gdp = (struct ext3_group_desc *)primary->b_data + gdb_off;
-
-	gdp->bg_block_bitmap = cpu_to_le32(input->block_bitmap);
-	gdp->bg_inode_bitmap = cpu_to_le32(input->inode_bitmap);
-	gdp->bg_inode_table = cpu_to_le32(input->inode_table);
-	gdp->bg_free_blocks_count = cpu_to_le16(input->free_blocks_count);
-	gdp->bg_free_inodes_count = cpu_to_le16(EXT3_INODES_PER_GROUP(sb));
-
-	/*
-	 * Make the new blocks and inodes valid next.  We do this before
-	 * increasing the group count so that once the group is enabled,
-	 * all of its blocks and inodes are already valid.
-	 *
-	 * We always allocate group-by-group, then block-by-block or
-	 * inode-by-inode within a group, so enabling these
-	 * blocks/inodes before the group is live won't actually let us
-	 * allocate the new space yet.
-	 */
-	le32_add_cpu(&es->s_blocks_count, input->blocks_count);
-	le32_add_cpu(&es->s_inodes_count, EXT3_INODES_PER_GROUP(sb));
-
-	/*
-	 * We need to protect s_groups_count against other CPUs seeing
-	 * inconsistent state in the superblock.
-	 *
-	 * The precise rules we use are:
-	 *
-	 * * Writers of s_groups_count *must* hold s_resize_lock
-	 * AND
-	 * * Writers must perform a smp_wmb() after updating all dependent
-	 *   data and before modifying the groups count
-	 *
-	 * * Readers must hold s_resize_lock over the access
-	 * OR
-	 * * Readers must perform an smp_rmb() after reading the groups count
-	 *   and before reading any dependent data.
-	 *
-	 * NB. These rules can be relaxed when checking the group count
-	 * while freeing data, as we can only allocate from a block
-	 * group after serialising against the group count, and we can
-	 * only then free after serialising in turn against that
-	 * allocation.
-	 */
-	smp_wmb();
-
-	/* Update the global fs size fields */
-	sbi->s_groups_count++;
-
-	err = ext3_journal_dirty_metadata(handle, primary);
-	if (err)
-		goto exit_journal;
-
-	/* Update the reserved block counts only once the new group is
-	 * active. */
-	le32_add_cpu(&es->s_r_blocks_count, input->reserved_blocks);
-
-	/* Update the free space counts */
-	percpu_counter_add(&sbi->s_freeblocks_counter,
-			   input->free_blocks_count);
-	percpu_counter_add(&sbi->s_freeinodes_counter,
-			   EXT3_INODES_PER_GROUP(sb));
-
-	err = ext3_journal_dirty_metadata(handle, sbi->s_sbh);
-
-exit_journal:
-	mutex_unlock(&sbi->s_resize_lock);
-	if ((err2 = ext3_journal_stop(handle)) && !err)
-		err = err2;
-	if (!err) {
-		update_backups(sb, sbi->s_sbh->b_blocknr, (char *)es,
-			       sizeof(struct ext3_super_block));
-		update_backups(sb, primary->b_blocknr, primary->b_data,
-			       primary->b_size);
-	}
-exit_put:
-	iput(inode);
-	return err;
-} /* ext3_group_add */
-
-/* Extend the filesystem to the new number of blocks specified.  This entry
- * point is only used to extend the current filesystem to the end of the last
- * existing group.  It can be accessed via ioctl, or by "remount,resize=<size>"
- * for emergencies (because it has no dependencies on reserved blocks).
- *
- * If we _really_ wanted, we could use default values to call ext3_group_add()
- * allow the "remount" trick to work for arbitrary resizing, assuming enough
- * GDT blocks are reserved to grow to the desired size.
- */
-int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
-		      ext3_fsblk_t n_blocks_count)
-{
-	ext3_fsblk_t o_blocks_count;
-	ext3_grpblk_t last;
-	ext3_grpblk_t add;
-	struct buffer_head * bh;
-	handle_t *handle;
-	int err;
-	unsigned long freed_blocks;
-
-	/* We don't need to worry about locking wrt other resizers just
-	 * yet: we're going to revalidate es->s_blocks_count after
-	 * taking the s_resize_lock below. */
-	o_blocks_count = le32_to_cpu(es->s_blocks_count);
-
-	if (test_opt(sb, DEBUG))
-		printk(KERN_DEBUG "EXT3-fs: extending last group from "E3FSBLK
-		       " up to "E3FSBLK" blocks\n",
-		       o_blocks_count, n_blocks_count);
-
-	if (n_blocks_count == 0 || n_blocks_count == o_blocks_count)
-		return 0;
-
-	if (n_blocks_count > (sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) {
-		printk(KERN_ERR "EXT3-fs: filesystem on %s:"
-			" too large to resize to "E3FSBLK" blocks safely\n",
-			sb->s_id, n_blocks_count);
-		if (sizeof(sector_t) < 8)
-			ext3_warning(sb, __func__,
-			"CONFIG_LBDAF not enabled\n");
-		return -EINVAL;
-	}
-
-	if (n_blocks_count < o_blocks_count) {
-		ext3_warning(sb, __func__,
-			     "can't shrink FS - resize aborted");
-		return -EBUSY;
-	}
-
-	/* Handle the remaining blocks in the last group only. */
-	last = (o_blocks_count - le32_to_cpu(es->s_first_data_block)) %
-		EXT3_BLOCKS_PER_GROUP(sb);
-
-	if (last == 0) {
-		ext3_warning(sb, __func__,
-			     "need to use ext2online to resize further");
-		return -EPERM;
-	}
-
-	add = EXT3_BLOCKS_PER_GROUP(sb) - last;
-
-	if (o_blocks_count + add < o_blocks_count) {
-		ext3_warning(sb, __func__, "blocks_count overflow");
-		return -EINVAL;
-	}
-
-	if (o_blocks_count + add > n_blocks_count)
-		add = n_blocks_count - o_blocks_count;
-
-	if (o_blocks_count + add < n_blocks_count)
-		ext3_warning(sb, __func__,
-			     "will only finish group ("E3FSBLK
-			     " blocks, %u new)",
-			     o_blocks_count + add, add);
-
-	/* See if the device is actually as big as what was requested */
-	bh = sb_bread(sb, o_blocks_count + add -1);
-	if (!bh) {
-		ext3_warning(sb, __func__,
-			     "can't read last block, resize aborted");
-		return -ENOSPC;
-	}
-	brelse(bh);
-
-	/* We will update the superblock, one block bitmap, and
-	 * one group descriptor via ext3_free_blocks().
-	 */
-	handle = ext3_journal_start_sb(sb, 3);
-	if (IS_ERR(handle)) {
-		err = PTR_ERR(handle);
-		ext3_warning(sb, __func__, "error %d on journal start",err);
-		goto exit_put;
-	}
-
-	mutex_lock(&EXT3_SB(sb)->s_resize_lock);
-	if (o_blocks_count != le32_to_cpu(es->s_blocks_count)) {
-		ext3_warning(sb, __func__,
-			     "multiple resizers run on filesystem!");
-		mutex_unlock(&EXT3_SB(sb)->s_resize_lock);
-		ext3_journal_stop(handle);
-		err = -EBUSY;
-		goto exit_put;
-	}
-
-	if ((err = ext3_journal_get_write_access(handle,
-						 EXT3_SB(sb)->s_sbh))) {
-		ext3_warning(sb, __func__,
-			     "error %d on journal write access", err);
-		mutex_unlock(&EXT3_SB(sb)->s_resize_lock);
-		ext3_journal_stop(handle);
-		goto exit_put;
-	}
-	es->s_blocks_count = cpu_to_le32(o_blocks_count + add);
-	err = ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
-	mutex_unlock(&EXT3_SB(sb)->s_resize_lock);
-	if (err) {
-		ext3_warning(sb, __func__,
-			     "error %d on journal dirty metadata", err);
-		ext3_journal_stop(handle);
-		goto exit_put;
-	}
-	ext3_debug("freeing blocks "E3FSBLK" through "E3FSBLK"\n",
-		   o_blocks_count, o_blocks_count + add);
-	ext3_free_blocks_sb(handle, sb, o_blocks_count, add, &freed_blocks);
-	ext3_debug("freed blocks "E3FSBLK" through "E3FSBLK"\n",
-		   o_blocks_count, o_blocks_count + add);
-	if ((err = ext3_journal_stop(handle)))
-		goto exit_put;
-	if (test_opt(sb, DEBUG))
-		printk(KERN_DEBUG "EXT3-fs: extended group to %u blocks\n",
-		       le32_to_cpu(es->s_blocks_count));
-	update_backups(sb, EXT3_SB(sb)->s_sbh->b_blocknr, (char *)es,
-		       sizeof(struct ext3_super_block));
-exit_put:
-	return err;
-} /* ext3_group_extend */
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
deleted file mode 100644
index 5ed0044fb..000000000
--- a/fs/ext3/super.c
+++ /dev/null
@@ -1,3165 +0,0 @@
-/*
- *  linux/fs/ext3/super.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- *  from
- *
- *  linux/fs/minix/inode.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *
- *  Big-endian to little-endian byte-swapping/bitmaps by
- *        David S. Miller (davem@caip.rutgers.edu), 1995
- */
-
-#include <linux/module.h>
-#include <linux/blkdev.h>
-#include <linux/parser.h>
-#include <linux/exportfs.h>
-#include <linux/statfs.h>
-#include <linux/random.h>
-#include <linux/mount.h>
-#include <linux/quotaops.h>
-#include <linux/seq_file.h>
-#include <linux/log2.h>
-#include <linux/cleancache.h>
-#include <linux/namei.h>
-
-#include <asm/uaccess.h>
-
-#define CREATE_TRACE_POINTS
-
-#include "ext3.h"
-#include "xattr.h"
-#include "acl.h"
-#include "namei.h"
-
-#ifdef CONFIG_EXT3_DEFAULTS_TO_ORDERED
-  #define EXT3_MOUNT_DEFAULT_DATA_MODE EXT3_MOUNT_ORDERED_DATA
-#else
-  #define EXT3_MOUNT_DEFAULT_DATA_MODE EXT3_MOUNT_WRITEBACK_DATA
-#endif
-
-static int ext3_load_journal(struct super_block *, struct ext3_super_block *,
-			     unsigned long journal_devnum);
-static int ext3_create_journal(struct super_block *, struct ext3_super_block *,
-			       unsigned int);
-static int ext3_commit_super(struct super_block *sb,
-			       struct ext3_super_block *es,
-			       int sync);
-static void ext3_mark_recovery_complete(struct super_block * sb,
-					struct ext3_super_block * es);
-static void ext3_clear_journal_err(struct super_block * sb,
-				   struct ext3_super_block * es);
-static int ext3_sync_fs(struct super_block *sb, int wait);
-static const char *ext3_decode_error(struct super_block * sb, int errno,
-				     char nbuf[16]);
-static int ext3_remount (struct super_block * sb, int * flags, char * data);
-static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf);
-static int ext3_unfreeze(struct super_block *sb);
-static int ext3_freeze(struct super_block *sb);
-
-/*
- * Wrappers for journal_start/end.
- */
-handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks)
-{
-	journal_t *journal;
-
-	if (sb->s_flags & MS_RDONLY)
-		return ERR_PTR(-EROFS);
-
-	/* Special case here: if the journal has aborted behind our
-	 * backs (eg. EIO in the commit thread), then we still need to
-	 * take the FS itself readonly cleanly. */
-	journal = EXT3_SB(sb)->s_journal;
-	if (is_journal_aborted(journal)) {
-		ext3_abort(sb, __func__,
-			   "Detected aborted journal");
-		return ERR_PTR(-EROFS);
-	}
-
-	return journal_start(journal, nblocks);
-}
-
-int __ext3_journal_stop(const char *where, handle_t *handle)
-{
-	struct super_block *sb;
-	int err;
-	int rc;
-
-	sb = handle->h_transaction->t_journal->j_private;
-	err = handle->h_err;
-	rc = journal_stop(handle);
-
-	if (!err)
-		err = rc;
-	if (err)
-		__ext3_std_error(sb, where, err);
-	return err;
-}
-
-void ext3_journal_abort_handle(const char *caller, const char *err_fn,
-		struct buffer_head *bh, handle_t *handle, int err)
-{
-	char nbuf[16];
-	const char *errstr = ext3_decode_error(NULL, err, nbuf);
-
-	if (bh)
-		BUFFER_TRACE(bh, "abort");
-
-	if (!handle->h_err)
-		handle->h_err = err;
-
-	if (is_handle_aborted(handle))
-		return;
-
-	printk(KERN_ERR "EXT3-fs: %s: aborting transaction: %s in %s\n",
-		caller, errstr, err_fn);
-
-	journal_abort_handle(handle);
-}
-
-void ext3_msg(struct super_block *sb, const char *prefix,
-		const char *fmt, ...)
-{
-	struct va_format vaf;
-	va_list args;
-
-	va_start(args, fmt);
-
-	vaf.fmt = fmt;
-	vaf.va = &args;
-
-	printk("%sEXT3-fs (%s): %pV\n", prefix, sb->s_id, &vaf);
-
-	va_end(args);
-}
-
-/* Deal with the reporting of failure conditions on a filesystem such as
- * inconsistencies detected or read IO failures.
- *
- * On ext2, we can store the error state of the filesystem in the
- * superblock.  That is not possible on ext3, because we may have other
- * write ordering constraints on the superblock which prevent us from
- * writing it out straight away; and given that the journal is about to
- * be aborted, we can't rely on the current, or future, transactions to
- * write out the superblock safely.
- *
- * We'll just use the journal_abort() error code to record an error in
- * the journal instead.  On recovery, the journal will complain about
- * that error until we've noted it down and cleared it.
- */
-
-static void ext3_handle_error(struct super_block *sb)
-{
-	struct ext3_super_block *es = EXT3_SB(sb)->s_es;
-
-	EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
-	es->s_state |= cpu_to_le16(EXT3_ERROR_FS);
-
-	if (sb->s_flags & MS_RDONLY)
-		return;
-
-	if (!test_opt (sb, ERRORS_CONT)) {
-		journal_t *journal = EXT3_SB(sb)->s_journal;
-
-		set_opt(EXT3_SB(sb)->s_mount_opt, ABORT);
-		if (journal)
-			journal_abort(journal, -EIO);
-	}
-	if (test_opt (sb, ERRORS_RO)) {
-		ext3_msg(sb, KERN_CRIT,
-			"error: remounting filesystem read-only");
-		/*
-		 * Make sure updated value of ->s_mount_state will be visible
-		 * before ->s_flags update.
-		 */
-		smp_wmb();
-		sb->s_flags |= MS_RDONLY;
-	}
-	ext3_commit_super(sb, es, 1);
-	if (test_opt(sb, ERRORS_PANIC))
-		panic("EXT3-fs (%s): panic forced after error\n",
-			sb->s_id);
-}
-
-void ext3_error(struct super_block *sb, const char *function,
-		const char *fmt, ...)
-{
-	struct va_format vaf;
-	va_list args;
-
-	va_start(args, fmt);
-
-	vaf.fmt = fmt;
-	vaf.va = &args;
-
-	printk(KERN_CRIT "EXT3-fs error (device %s): %s: %pV\n",
-	       sb->s_id, function, &vaf);
-
-	va_end(args);
-
-	ext3_handle_error(sb);
-}
-
-static const char *ext3_decode_error(struct super_block * sb, int errno,
-				     char nbuf[16])
-{
-	char *errstr = NULL;
-
-	switch (errno) {
-	case -EIO:
-		errstr = "IO failure";
-		break;
-	case -ENOMEM:
-		errstr = "Out of memory";
-		break;
-	case -EROFS:
-		if (!sb || EXT3_SB(sb)->s_journal->j_flags & JFS_ABORT)
-			errstr = "Journal has aborted";
-		else
-			errstr = "Readonly filesystem";
-		break;
-	default:
-		/* If the caller passed in an extra buffer for unknown
-		 * errors, textualise them now.  Else we just return
-		 * NULL. */
-		if (nbuf) {
-			/* Check for truncated error codes... */
-			if (snprintf(nbuf, 16, "error %d", -errno) >= 0)
-				errstr = nbuf;
-		}
-		break;
-	}
-
-	return errstr;
-}
-
-/* __ext3_std_error decodes expected errors from journaling functions
- * automatically and invokes the appropriate error response.  */
-
-void __ext3_std_error (struct super_block * sb, const char * function,
-		       int errno)
-{
-	char nbuf[16];
-	const char *errstr;
-
-	/* Special case: if the error is EROFS, and we're not already
-	 * inside a transaction, then there's really no point in logging
-	 * an error. */
-	if (errno == -EROFS && journal_current_handle() == NULL &&
-	    (sb->s_flags & MS_RDONLY))
-		return;
-
-	errstr = ext3_decode_error(sb, errno, nbuf);
-	ext3_msg(sb, KERN_CRIT, "error in %s: %s", function, errstr);
-
-	ext3_handle_error(sb);
-}
-
-/*
- * ext3_abort is a much stronger failure handler than ext3_error.  The
- * abort function may be used to deal with unrecoverable failures such
- * as journal IO errors or ENOMEM at a critical moment in log management.
- *
- * We unconditionally force the filesystem into an ABORT|READONLY state,
- * unless the error response on the fs has been set to panic in which
- * case we take the easy way out and panic immediately.
- */
-
-void ext3_abort(struct super_block *sb, const char *function,
-		 const char *fmt, ...)
-{
-	struct va_format vaf;
-	va_list args;
-
-	va_start(args, fmt);
-
-	vaf.fmt = fmt;
-	vaf.va = &args;
-
-	printk(KERN_CRIT "EXT3-fs (%s): error: %s: %pV\n",
-	       sb->s_id, function, &vaf);
-
-	va_end(args);
-
-	if (test_opt(sb, ERRORS_PANIC))
-		panic("EXT3-fs: panic from previous error\n");
-
-	if (sb->s_flags & MS_RDONLY)
-		return;
-
-	ext3_msg(sb, KERN_CRIT,
-		"error: remounting filesystem read-only");
-	EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
-	set_opt(EXT3_SB(sb)->s_mount_opt, ABORT);
-	/*
-	 * Make sure updated value of ->s_mount_state will be visible
-	 * before ->s_flags update.
-	 */
-	smp_wmb();
-	sb->s_flags |= MS_RDONLY;
-
-	if (EXT3_SB(sb)->s_journal)
-		journal_abort(EXT3_SB(sb)->s_journal, -EIO);
-}
-
-void ext3_warning(struct super_block *sb, const char *function,
-		  const char *fmt, ...)
-{
-	struct va_format vaf;
-	va_list args;
-
-	va_start(args, fmt);
-
-	vaf.fmt = fmt;
-	vaf.va = &args;
-
-	printk(KERN_WARNING "EXT3-fs (%s): warning: %s: %pV\n",
-	       sb->s_id, function, &vaf);
-
-	va_end(args);
-}
-
-void ext3_update_dynamic_rev(struct super_block *sb)
-{
-	struct ext3_super_block *es = EXT3_SB(sb)->s_es;
-
-	if (le32_to_cpu(es->s_rev_level) > EXT3_GOOD_OLD_REV)
-		return;
-
-	ext3_msg(sb, KERN_WARNING,
-		"warning: updating to rev %d because of "
-		"new feature flag, running e2fsck is recommended",
-		EXT3_DYNAMIC_REV);
-
-	es->s_first_ino = cpu_to_le32(EXT3_GOOD_OLD_FIRST_INO);
-	es->s_inode_size = cpu_to_le16(EXT3_GOOD_OLD_INODE_SIZE);
-	es->s_rev_level = cpu_to_le32(EXT3_DYNAMIC_REV);
-	/* leave es->s_feature_*compat flags alone */
-	/* es->s_uuid will be set by e2fsck if empty */
-
-	/*
-	 * The rest of the superblock fields should be zero, and if not it
-	 * means they are likely already in use, so leave them alone.  We
-	 * can leave it up to e2fsck to clean up any inconsistencies there.
-	 */
-}
-
-/*
- * Open the external journal device
- */
-static struct block_device *ext3_blkdev_get(dev_t dev, struct super_block *sb)
-{
-	struct block_device *bdev;
-	char b[BDEVNAME_SIZE];
-
-	bdev = blkdev_get_by_dev(dev, FMODE_READ|FMODE_WRITE|FMODE_EXCL, sb);
-	if (IS_ERR(bdev))
-		goto fail;
-	return bdev;
-
-fail:
-	ext3_msg(sb, KERN_ERR, "error: failed to open journal device %s: %ld",
-		__bdevname(dev, b), PTR_ERR(bdev));
-
-	return NULL;
-}
-
-/*
- * Release the journal device
- */
-static void ext3_blkdev_put(struct block_device *bdev)
-{
-	blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
-}
-
-static void ext3_blkdev_remove(struct ext3_sb_info *sbi)
-{
-	struct block_device *bdev;
-	bdev = sbi->journal_bdev;
-	if (bdev) {
-		ext3_blkdev_put(bdev);
-		sbi->journal_bdev = NULL;
-	}
-}
-
-static inline struct inode *orphan_list_entry(struct list_head *l)
-{
-	return &list_entry(l, struct ext3_inode_info, i_orphan)->vfs_inode;
-}
-
-static void dump_orphan_list(struct super_block *sb, struct ext3_sb_info *sbi)
-{
-	struct list_head *l;
-
-	ext3_msg(sb, KERN_ERR, "error: sb orphan head is %d",
-	       le32_to_cpu(sbi->s_es->s_last_orphan));
-
-	ext3_msg(sb, KERN_ERR, "sb_info orphan list:");
-	list_for_each(l, &sbi->s_orphan) {
-		struct inode *inode = orphan_list_entry(l);
-		ext3_msg(sb, KERN_ERR, "  "
-		       "inode %s:%lu at %p: mode %o, nlink %d, next %d\n",
-		       inode->i_sb->s_id, inode->i_ino, inode,
-		       inode->i_mode, inode->i_nlink,
-		       NEXT_ORPHAN(inode));
-	}
-}
-
-static void ext3_put_super (struct super_block * sb)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	struct ext3_super_block *es = sbi->s_es;
-	int i, err;
-
-	dquot_disable(sb, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);
-	ext3_xattr_put_super(sb);
-	err = journal_destroy(sbi->s_journal);
-	sbi->s_journal = NULL;
-	if (err < 0)
-		ext3_abort(sb, __func__, "Couldn't clean up the journal");
-
-	if (!(sb->s_flags & MS_RDONLY)) {
-		EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
-		es->s_state = cpu_to_le16(sbi->s_mount_state);
-		BUFFER_TRACE(sbi->s_sbh, "marking dirty");
-		mark_buffer_dirty(sbi->s_sbh);
-		ext3_commit_super(sb, es, 1);
-	}
-
-	for (i = 0; i < sbi->s_gdb_count; i++)
-		brelse(sbi->s_group_desc[i]);
-	kfree(sbi->s_group_desc);
-	percpu_counter_destroy(&sbi->s_freeblocks_counter);
-	percpu_counter_destroy(&sbi->s_freeinodes_counter);
-	percpu_counter_destroy(&sbi->s_dirs_counter);
-	brelse(sbi->s_sbh);
-#ifdef CONFIG_QUOTA
-	for (i = 0; i < EXT3_MAXQUOTAS; i++)
-		kfree(sbi->s_qf_names[i]);
-#endif
-
-	/* Debugging code just in case the in-memory inode orphan list
-	 * isn't empty.  The on-disk one can be non-empty if we've
-	 * detected an error and taken the fs readonly, but the
-	 * in-memory list had better be clean by this point. */
-	if (!list_empty(&sbi->s_orphan))
-		dump_orphan_list(sb, sbi);
-	J_ASSERT(list_empty(&sbi->s_orphan));
-
-	invalidate_bdev(sb->s_bdev);
-	if (sbi->journal_bdev && sbi->journal_bdev != sb->s_bdev) {
-		/*
-		 * Invalidate the journal device's buffers.  We don't want them
-		 * floating about in memory - the physical journal device may
-		 * hotswapped, and it breaks the `ro-after' testing code.
-		 */
-		sync_blockdev(sbi->journal_bdev);
-		invalidate_bdev(sbi->journal_bdev);
-		ext3_blkdev_remove(sbi);
-	}
-	sb->s_fs_info = NULL;
-	kfree(sbi->s_blockgroup_lock);
-	mutex_destroy(&sbi->s_orphan_lock);
-	mutex_destroy(&sbi->s_resize_lock);
-	kfree(sbi);
-}
-
-static struct kmem_cache *ext3_inode_cachep;
-
-/*
- * Called inside transaction, so use GFP_NOFS
- */
-static struct inode *ext3_alloc_inode(struct super_block *sb)
-{
-	struct ext3_inode_info *ei;
-
-	ei = kmem_cache_alloc(ext3_inode_cachep, GFP_NOFS);
-	if (!ei)
-		return NULL;
-	ei->i_block_alloc_info = NULL;
-	ei->vfs_inode.i_version = 1;
-	atomic_set(&ei->i_datasync_tid, 0);
-	atomic_set(&ei->i_sync_tid, 0);
-#ifdef CONFIG_QUOTA
-	memset(&ei->i_dquot, 0, sizeof(ei->i_dquot));
-#endif
-
-	return &ei->vfs_inode;
-}
-
-static int ext3_drop_inode(struct inode *inode)
-{
-	int drop = generic_drop_inode(inode);
-
-	trace_ext3_drop_inode(inode, drop);
-	return drop;
-}
-
-static void ext3_i_callback(struct rcu_head *head)
-{
-	struct inode *inode = container_of(head, struct inode, i_rcu);
-	kmem_cache_free(ext3_inode_cachep, EXT3_I(inode));
-}
-
-static void ext3_destroy_inode(struct inode *inode)
-{
-	if (!list_empty(&(EXT3_I(inode)->i_orphan))) {
-		printk("EXT3 Inode %p: orphan list check failed!\n",
-			EXT3_I(inode));
-		print_hex_dump(KERN_INFO, "", DUMP_PREFIX_ADDRESS, 16, 4,
-				EXT3_I(inode), sizeof(struct ext3_inode_info),
-				false);
-		dump_stack();
-	}
-	call_rcu(&inode->i_rcu, ext3_i_callback);
-}
-
-static void init_once(void *foo)
-{
-	struct ext3_inode_info *ei = (struct ext3_inode_info *) foo;
-
-	INIT_LIST_HEAD(&ei->i_orphan);
-#ifdef CONFIG_EXT3_FS_XATTR
-	init_rwsem(&ei->xattr_sem);
-#endif
-	mutex_init(&ei->truncate_mutex);
-	inode_init_once(&ei->vfs_inode);
-}
-
-static int __init init_inodecache(void)
-{
-	ext3_inode_cachep = kmem_cache_create("ext3_inode_cache",
-					     sizeof(struct ext3_inode_info),
-					     0, (SLAB_RECLAIM_ACCOUNT|
-						SLAB_MEM_SPREAD),
-					     init_once);
-	if (ext3_inode_cachep == NULL)
-		return -ENOMEM;
-	return 0;
-}
-
-static void destroy_inodecache(void)
-{
-	/*
-	 * Make sure all delayed rcu free inodes are flushed before we
-	 * destroy cache.
-	 */
-	rcu_barrier();
-	kmem_cache_destroy(ext3_inode_cachep);
-}
-
-static inline void ext3_show_quota_options(struct seq_file *seq, struct super_block *sb)
-{
-#if defined(CONFIG_QUOTA)
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-
-	if (sbi->s_jquota_fmt) {
-		char *fmtname = "";
-
-		switch (sbi->s_jquota_fmt) {
-		case QFMT_VFS_OLD:
-			fmtname = "vfsold";
-			break;
-		case QFMT_VFS_V0:
-			fmtname = "vfsv0";
-			break;
-		case QFMT_VFS_V1:
-			fmtname = "vfsv1";
-			break;
-		}
-		seq_printf(seq, ",jqfmt=%s", fmtname);
-	}
-
-	if (sbi->s_qf_names[USRQUOTA])
-		seq_printf(seq, ",usrjquota=%s", sbi->s_qf_names[USRQUOTA]);
-
-	if (sbi->s_qf_names[GRPQUOTA])
-		seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
-
-	if (test_opt(sb, USRQUOTA))
-		seq_puts(seq, ",usrquota");
-
-	if (test_opt(sb, GRPQUOTA))
-		seq_puts(seq, ",grpquota");
-#endif
-}
-
-static char *data_mode_string(unsigned long mode)
-{
-	switch (mode) {
-	case EXT3_MOUNT_JOURNAL_DATA:
-		return "journal";
-	case EXT3_MOUNT_ORDERED_DATA:
-		return "ordered";
-	case EXT3_MOUNT_WRITEBACK_DATA:
-		return "writeback";
-	}
-	return "unknown";
-}
-
-/*
- * Show an option if
- *  - it's set to a non-default value OR
- *  - if the per-sb default is different from the global default
- */
-static int ext3_show_options(struct seq_file *seq, struct dentry *root)
-{
-	struct super_block *sb = root->d_sb;
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	struct ext3_super_block *es = sbi->s_es;
-	unsigned long def_mount_opts;
-
-	def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
-
-	if (sbi->s_sb_block != 1)
-		seq_printf(seq, ",sb=%lu", sbi->s_sb_block);
-	if (test_opt(sb, MINIX_DF))
-		seq_puts(seq, ",minixdf");
-	if (test_opt(sb, GRPID))
-		seq_puts(seq, ",grpid");
-	if (!test_opt(sb, GRPID) && (def_mount_opts & EXT3_DEFM_BSDGROUPS))
-		seq_puts(seq, ",nogrpid");
-	if (!uid_eq(sbi->s_resuid, make_kuid(&init_user_ns, EXT3_DEF_RESUID)) ||
-	    le16_to_cpu(es->s_def_resuid) != EXT3_DEF_RESUID) {
-		seq_printf(seq, ",resuid=%u",
-				from_kuid_munged(&init_user_ns, sbi->s_resuid));
-	}
-	if (!gid_eq(sbi->s_resgid, make_kgid(&init_user_ns, EXT3_DEF_RESGID)) ||
-	    le16_to_cpu(es->s_def_resgid) != EXT3_DEF_RESGID) {
-		seq_printf(seq, ",resgid=%u",
-				from_kgid_munged(&init_user_ns, sbi->s_resgid));
-	}
-	if (test_opt(sb, ERRORS_RO)) {
-		int def_errors = le16_to_cpu(es->s_errors);
-
-		if (def_errors == EXT3_ERRORS_PANIC ||
-		    def_errors == EXT3_ERRORS_CONTINUE) {
-			seq_puts(seq, ",errors=remount-ro");
-		}
-	}
-	if (test_opt(sb, ERRORS_CONT))
-		seq_puts(seq, ",errors=continue");
-	if (test_opt(sb, ERRORS_PANIC))
-		seq_puts(seq, ",errors=panic");
-	if (test_opt(sb, NO_UID32))
-		seq_puts(seq, ",nouid32");
-	if (test_opt(sb, DEBUG))
-		seq_puts(seq, ",debug");
-#ifdef CONFIG_EXT3_FS_XATTR
-	if (test_opt(sb, XATTR_USER))
-		seq_puts(seq, ",user_xattr");
-	if (!test_opt(sb, XATTR_USER) &&
-	    (def_mount_opts & EXT3_DEFM_XATTR_USER)) {
-		seq_puts(seq, ",nouser_xattr");
-	}
-#endif
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
-	if (test_opt(sb, POSIX_ACL))
-		seq_puts(seq, ",acl");
-	if (!test_opt(sb, POSIX_ACL) && (def_mount_opts & EXT3_DEFM_ACL))
-		seq_puts(seq, ",noacl");
-#endif
-	if (!test_opt(sb, RESERVATION))
-		seq_puts(seq, ",noreservation");
-	if (sbi->s_commit_interval) {
-		seq_printf(seq, ",commit=%u",
-			   (unsigned) (sbi->s_commit_interval / HZ));
-	}
-
-	/*
-	 * Always display barrier state so it's clear what the status is.
-	 */
-	seq_puts(seq, ",barrier=");
-	seq_puts(seq, test_opt(sb, BARRIER) ? "1" : "0");
-	seq_printf(seq, ",data=%s", data_mode_string(test_opt(sb, DATA_FLAGS)));
-	if (test_opt(sb, DATA_ERR_ABORT))
-		seq_puts(seq, ",data_err=abort");
-
-	if (test_opt(sb, NOLOAD))
-		seq_puts(seq, ",norecovery");
-
-	ext3_show_quota_options(seq, sb);
-
-	return 0;
-}
-
-
-static struct inode *ext3_nfs_get_inode(struct super_block *sb,
-		u64 ino, u32 generation)
-{
-	struct inode *inode;
-
-	if (ino < EXT3_FIRST_INO(sb) && ino != EXT3_ROOT_INO)
-		return ERR_PTR(-ESTALE);
-	if (ino > le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count))
-		return ERR_PTR(-ESTALE);
-
-	/* iget isn't really right if the inode is currently unallocated!!
-	 *
-	 * ext3_read_inode will return a bad_inode if the inode had been
-	 * deleted, so we should be safe.
-	 *
-	 * Currently we don't know the generation for parent directory, so
-	 * a generation of 0 means "accept any"
-	 */
-	inode = ext3_iget(sb, ino);
-	if (IS_ERR(inode))
-		return ERR_CAST(inode);
-	if (generation && inode->i_generation != generation) {
-		iput(inode);
-		return ERR_PTR(-ESTALE);
-	}
-
-	return inode;
-}
-
-static struct dentry *ext3_fh_to_dentry(struct super_block *sb, struct fid *fid,
-		int fh_len, int fh_type)
-{
-	return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
-				    ext3_nfs_get_inode);
-}
-
-static struct dentry *ext3_fh_to_parent(struct super_block *sb, struct fid *fid,
-		int fh_len, int fh_type)
-{
-	return generic_fh_to_parent(sb, fid, fh_len, fh_type,
-				    ext3_nfs_get_inode);
-}
-
-/*
- * Try to release metadata pages (indirect blocks, directories) which are
- * mapped via the block device.  Since these pages could have journal heads
- * which would prevent try_to_free_buffers() from freeing them, we must use
- * jbd layer's try_to_free_buffers() function to release them.
- */
-static int bdev_try_to_free_page(struct super_block *sb, struct page *page,
-				 gfp_t wait)
-{
-	journal_t *journal = EXT3_SB(sb)->s_journal;
-
-	WARN_ON(PageChecked(page));
-	if (!page_has_buffers(page))
-		return 0;
-	if (journal)
-		return journal_try_to_free_buffers(journal, page, 
-						   wait & ~__GFP_WAIT);
-	return try_to_free_buffers(page);
-}
-
-#ifdef CONFIG_QUOTA
-#define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
-#define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
-
-static int ext3_write_dquot(struct dquot *dquot);
-static int ext3_acquire_dquot(struct dquot *dquot);
-static int ext3_release_dquot(struct dquot *dquot);
-static int ext3_mark_dquot_dirty(struct dquot *dquot);
-static int ext3_write_info(struct super_block *sb, int type);
-static int ext3_quota_on(struct super_block *sb, int type, int format_id,
-			 struct path *path);
-static int ext3_quota_on_mount(struct super_block *sb, int type);
-static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data,
-			       size_t len, loff_t off);
-static ssize_t ext3_quota_write(struct super_block *sb, int type,
-				const char *data, size_t len, loff_t off);
-static struct dquot **ext3_get_dquots(struct inode *inode)
-{
-	return EXT3_I(inode)->i_dquot;
-}
-
-static const struct dquot_operations ext3_quota_operations = {
-	.write_dquot	= ext3_write_dquot,
-	.acquire_dquot	= ext3_acquire_dquot,
-	.release_dquot	= ext3_release_dquot,
-	.mark_dirty	= ext3_mark_dquot_dirty,
-	.write_info	= ext3_write_info,
-	.alloc_dquot	= dquot_alloc,
-	.destroy_dquot	= dquot_destroy,
-};
-
-static const struct quotactl_ops ext3_qctl_operations = {
-	.quota_on	= ext3_quota_on,
-	.quota_off	= dquot_quota_off,
-	.quota_sync	= dquot_quota_sync,
-	.get_state	= dquot_get_state,
-	.set_info	= dquot_set_dqinfo,
-	.get_dqblk	= dquot_get_dqblk,
-	.set_dqblk	= dquot_set_dqblk
-};
-#endif
-
-static const struct super_operations ext3_sops = {
-	.alloc_inode	= ext3_alloc_inode,
-	.destroy_inode	= ext3_destroy_inode,
-	.write_inode	= ext3_write_inode,
-	.dirty_inode	= ext3_dirty_inode,
-	.drop_inode	= ext3_drop_inode,
-	.evict_inode	= ext3_evict_inode,
-	.put_super	= ext3_put_super,
-	.sync_fs	= ext3_sync_fs,
-	.freeze_fs	= ext3_freeze,
-	.unfreeze_fs	= ext3_unfreeze,
-	.statfs		= ext3_statfs,
-	.remount_fs	= ext3_remount,
-	.show_options	= ext3_show_options,
-#ifdef CONFIG_QUOTA
-	.quota_read	= ext3_quota_read,
-	.quota_write	= ext3_quota_write,
-	.get_dquots	= ext3_get_dquots,
-#endif
-	.bdev_try_to_free_page = bdev_try_to_free_page,
-};
-
-static const struct export_operations ext3_export_ops = {
-	.fh_to_dentry = ext3_fh_to_dentry,
-	.fh_to_parent = ext3_fh_to_parent,
-	.get_parent = ext3_get_parent,
-};
-
-enum {
-	Opt_bsd_df, Opt_minix_df, Opt_grpid, Opt_nogrpid,
-	Opt_resgid, Opt_resuid, Opt_sb, Opt_err_cont, Opt_err_panic, Opt_err_ro,
-	Opt_nouid32, Opt_nocheck, Opt_debug, Opt_oldalloc, Opt_orlov,
-	Opt_user_xattr, Opt_nouser_xattr, Opt_acl, Opt_noacl,
-	Opt_reservation, Opt_noreservation, Opt_noload, Opt_nobh, Opt_bh,
-	Opt_commit, Opt_journal_update, Opt_journal_inum, Opt_journal_dev,
-	Opt_journal_path,
-	Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
-	Opt_data_err_abort, Opt_data_err_ignore,
-	Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
-	Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota,
-	Opt_noquota, Opt_ignore, Opt_barrier, Opt_nobarrier, Opt_err,
-	Opt_resize, Opt_usrquota, Opt_grpquota
-};
-
-static const match_table_t tokens = {
-	{Opt_bsd_df, "bsddf"},
-	{Opt_minix_df, "minixdf"},
-	{Opt_grpid, "grpid"},
-	{Opt_grpid, "bsdgroups"},
-	{Opt_nogrpid, "nogrpid"},
-	{Opt_nogrpid, "sysvgroups"},
-	{Opt_resgid, "resgid=%u"},
-	{Opt_resuid, "resuid=%u"},
-	{Opt_sb, "sb=%u"},
-	{Opt_err_cont, "errors=continue"},
-	{Opt_err_panic, "errors=panic"},
-	{Opt_err_ro, "errors=remount-ro"},
-	{Opt_nouid32, "nouid32"},
-	{Opt_nocheck, "nocheck"},
-	{Opt_nocheck, "check=none"},
-	{Opt_debug, "debug"},
-	{Opt_oldalloc, "oldalloc"},
-	{Opt_orlov, "orlov"},
-	{Opt_user_xattr, "user_xattr"},
-	{Opt_nouser_xattr, "nouser_xattr"},
-	{Opt_acl, "acl"},
-	{Opt_noacl, "noacl"},
-	{Opt_reservation, "reservation"},
-	{Opt_noreservation, "noreservation"},
-	{Opt_noload, "noload"},
-	{Opt_noload, "norecovery"},
-	{Opt_nobh, "nobh"},
-	{Opt_bh, "bh"},
-	{Opt_commit, "commit=%u"},
-	{Opt_journal_update, "journal=update"},
-	{Opt_journal_inum, "journal=%u"},
-	{Opt_journal_dev, "journal_dev=%u"},
-	{Opt_journal_path, "journal_path=%s"},
-	{Opt_abort, "abort"},
-	{Opt_data_journal, "data=journal"},
-	{Opt_data_ordered, "data=ordered"},
-	{Opt_data_writeback, "data=writeback"},
-	{Opt_data_err_abort, "data_err=abort"},
-	{Opt_data_err_ignore, "data_err=ignore"},
-	{Opt_offusrjquota, "usrjquota="},
-	{Opt_usrjquota, "usrjquota=%s"},
-	{Opt_offgrpjquota, "grpjquota="},
-	{Opt_grpjquota, "grpjquota=%s"},
-	{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
-	{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
-	{Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
-	{Opt_grpquota, "grpquota"},
-	{Opt_noquota, "noquota"},
-	{Opt_quota, "quota"},
-	{Opt_usrquota, "usrquota"},
-	{Opt_barrier, "barrier=%u"},
-	{Opt_barrier, "barrier"},
-	{Opt_nobarrier, "nobarrier"},
-	{Opt_resize, "resize"},
-	{Opt_err, NULL},
-};
-
-static ext3_fsblk_t get_sb_block(void **data, struct super_block *sb)
-{
-	ext3_fsblk_t	sb_block;
-	char		*options = (char *) *data;
-
-	if (!options || strncmp(options, "sb=", 3) != 0)
-		return 1;	/* Default location */
-	options += 3;
-	/*todo: use simple_strtoll with >32bit ext3 */
-	sb_block = simple_strtoul(options, &options, 0);
-	if (*options && *options != ',') {
-		ext3_msg(sb, KERN_ERR, "error: invalid sb specification: %s",
-		       (char *) *data);
-		return 1;
-	}
-	if (*options == ',')
-		options++;
-	*data = (void *) options;
-	return sb_block;
-}
-
-#ifdef CONFIG_QUOTA
-static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	char *qname;
-
-	if (sb_any_quota_loaded(sb) &&
-		!sbi->s_qf_names[qtype]) {
-		ext3_msg(sb, KERN_ERR,
-			"Cannot change journaled "
-			"quota options when quota turned on");
-		return 0;
-	}
-	qname = match_strdup(args);
-	if (!qname) {
-		ext3_msg(sb, KERN_ERR,
-			"Not enough memory for storing quotafile name");
-		return 0;
-	}
-	if (sbi->s_qf_names[qtype]) {
-		int same = !strcmp(sbi->s_qf_names[qtype], qname);
-
-		kfree(qname);
-		if (!same) {
-			ext3_msg(sb, KERN_ERR,
-				 "%s quota file already specified",
-				 QTYPE2NAME(qtype));
-		}
-		return same;
-	}
-	if (strchr(qname, '/')) {
-		ext3_msg(sb, KERN_ERR,
-			"quotafile must be on filesystem root");
-		kfree(qname);
-		return 0;
-	}
-	sbi->s_qf_names[qtype] = qname;
-	set_opt(sbi->s_mount_opt, QUOTA);
-	return 1;
-}
-
-static int clear_qf_name(struct super_block *sb, int qtype) {
-
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-
-	if (sb_any_quota_loaded(sb) &&
-		sbi->s_qf_names[qtype]) {
-		ext3_msg(sb, KERN_ERR, "Cannot change journaled quota options"
-			" when quota turned on");
-		return 0;
-	}
-	if (sbi->s_qf_names[qtype]) {
-		kfree(sbi->s_qf_names[qtype]);
-		sbi->s_qf_names[qtype] = NULL;
-	}
-	return 1;
-}
-#endif
-
-static int parse_options (char *options, struct super_block *sb,
-			  unsigned int *inum, unsigned long *journal_devnum,
-			  ext3_fsblk_t *n_blocks_count, int is_remount)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	char * p;
-	substring_t args[MAX_OPT_ARGS];
-	int data_opt = 0;
-	int option;
-	kuid_t uid;
-	kgid_t gid;
-	char *journal_path;
-	struct inode *journal_inode;
-	struct path path;
-	int error;
-
-#ifdef CONFIG_QUOTA
-	int qfmt;
-#endif
-
-	if (!options)
-		return 1;
-
-	while ((p = strsep (&options, ",")) != NULL) {
-		int token;
-		if (!*p)
-			continue;
-		/*
-		 * Initialize args struct so we know whether arg was
-		 * found; some options take optional arguments.
-		 */
-		args[0].to = args[0].from = NULL;
-		token = match_token(p, tokens, args);
-		switch (token) {
-		case Opt_bsd_df:
-			clear_opt (sbi->s_mount_opt, MINIX_DF);
-			break;
-		case Opt_minix_df:
-			set_opt (sbi->s_mount_opt, MINIX_DF);
-			break;
-		case Opt_grpid:
-			set_opt (sbi->s_mount_opt, GRPID);
-			break;
-		case Opt_nogrpid:
-			clear_opt (sbi->s_mount_opt, GRPID);
-			break;
-		case Opt_resuid:
-			if (match_int(&args[0], &option))
-				return 0;
-			uid = make_kuid(current_user_ns(), option);
-			if (!uid_valid(uid)) {
-				ext3_msg(sb, KERN_ERR, "Invalid uid value %d", option);
-				return 0;
-
-			}
-			sbi->s_resuid = uid;
-			break;
-		case Opt_resgid:
-			if (match_int(&args[0], &option))
-				return 0;
-			gid = make_kgid(current_user_ns(), option);
-			if (!gid_valid(gid)) {
-				ext3_msg(sb, KERN_ERR, "Invalid gid value %d", option);
-				return 0;
-			}
-			sbi->s_resgid = gid;
-			break;
-		case Opt_sb:
-			/* handled by get_sb_block() instead of here */
-			/* *sb_block = match_int(&args[0]); */
-			break;
-		case Opt_err_panic:
-			clear_opt (sbi->s_mount_opt, ERRORS_CONT);
-			clear_opt (sbi->s_mount_opt, ERRORS_RO);
-			set_opt (sbi->s_mount_opt, ERRORS_PANIC);
-			break;
-		case Opt_err_ro:
-			clear_opt (sbi->s_mount_opt, ERRORS_CONT);
-			clear_opt (sbi->s_mount_opt, ERRORS_PANIC);
-			set_opt (sbi->s_mount_opt, ERRORS_RO);
-			break;
-		case Opt_err_cont:
-			clear_opt (sbi->s_mount_opt, ERRORS_RO);
-			clear_opt (sbi->s_mount_opt, ERRORS_PANIC);
-			set_opt (sbi->s_mount_opt, ERRORS_CONT);
-			break;
-		case Opt_nouid32:
-			set_opt (sbi->s_mount_opt, NO_UID32);
-			break;
-		case Opt_nocheck:
-			clear_opt (sbi->s_mount_opt, CHECK);
-			break;
-		case Opt_debug:
-			set_opt (sbi->s_mount_opt, DEBUG);
-			break;
-		case Opt_oldalloc:
-			ext3_msg(sb, KERN_WARNING,
-				"Ignoring deprecated oldalloc option");
-			break;
-		case Opt_orlov:
-			ext3_msg(sb, KERN_WARNING,
-				"Ignoring deprecated orlov option");
-			break;
-#ifdef CONFIG_EXT3_FS_XATTR
-		case Opt_user_xattr:
-			set_opt (sbi->s_mount_opt, XATTR_USER);
-			break;
-		case Opt_nouser_xattr:
-			clear_opt (sbi->s_mount_opt, XATTR_USER);
-			break;
-#else
-		case Opt_user_xattr:
-		case Opt_nouser_xattr:
-			ext3_msg(sb, KERN_INFO,
-				"(no)user_xattr options not supported");
-			break;
-#endif
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
-		case Opt_acl:
-			set_opt(sbi->s_mount_opt, POSIX_ACL);
-			break;
-		case Opt_noacl:
-			clear_opt(sbi->s_mount_opt, POSIX_ACL);
-			break;
-#else
-		case Opt_acl:
-		case Opt_noacl:
-			ext3_msg(sb, KERN_INFO,
-				"(no)acl options not supported");
-			break;
-#endif
-		case Opt_reservation:
-			set_opt(sbi->s_mount_opt, RESERVATION);
-			break;
-		case Opt_noreservation:
-			clear_opt(sbi->s_mount_opt, RESERVATION);
-			break;
-		case Opt_journal_update:
-			/* @@@ FIXME */
-			/* Eventually we will want to be able to create
-			   a journal file here.  For now, only allow the
-			   user to specify an existing inode to be the
-			   journal file. */
-			if (is_remount) {
-				ext3_msg(sb, KERN_ERR, "error: cannot specify "
-					"journal on remount");
-				return 0;
-			}
-			set_opt (sbi->s_mount_opt, UPDATE_JOURNAL);
-			break;
-		case Opt_journal_inum:
-			if (is_remount) {
-				ext3_msg(sb, KERN_ERR, "error: cannot specify "
-				       "journal on remount");
-				return 0;
-			}
-			if (match_int(&args[0], &option))
-				return 0;
-			*inum = option;
-			break;
-		case Opt_journal_dev:
-			if (is_remount) {
-				ext3_msg(sb, KERN_ERR, "error: cannot specify "
-				       "journal on remount");
-				return 0;
-			}
-			if (match_int(&args[0], &option))
-				return 0;
-			*journal_devnum = option;
-			break;
-		case Opt_journal_path:
-			if (is_remount) {
-				ext3_msg(sb, KERN_ERR, "error: cannot specify "
-				       "journal on remount");
-				return 0;
-			}
-
-			journal_path = match_strdup(&args[0]);
-			if (!journal_path) {
-				ext3_msg(sb, KERN_ERR, "error: could not dup "
-					"journal device string");
-				return 0;
-			}
-
-			error = kern_path(journal_path, LOOKUP_FOLLOW, &path);
-			if (error) {
-				ext3_msg(sb, KERN_ERR, "error: could not find "
-					"journal device path: error %d", error);
-				kfree(journal_path);
-				return 0;
-			}
-
-			journal_inode = d_inode(path.dentry);
-			if (!S_ISBLK(journal_inode->i_mode)) {
-				ext3_msg(sb, KERN_ERR, "error: journal path %s "
-					"is not a block device", journal_path);
-				path_put(&path);
-				kfree(journal_path);
-				return 0;
-			}
-
-			*journal_devnum = new_encode_dev(journal_inode->i_rdev);
-			path_put(&path);
-			kfree(journal_path);
-			break;
-		case Opt_noload:
-			set_opt (sbi->s_mount_opt, NOLOAD);
-			break;
-		case Opt_commit:
-			if (match_int(&args[0], &option))
-				return 0;
-			if (option < 0)
-				return 0;
-			if (option == 0)
-				option = JBD_DEFAULT_MAX_COMMIT_AGE;
-			sbi->s_commit_interval = HZ * option;
-			break;
-		case Opt_data_journal:
-			data_opt = EXT3_MOUNT_JOURNAL_DATA;
-			goto datacheck;
-		case Opt_data_ordered:
-			data_opt = EXT3_MOUNT_ORDERED_DATA;
-			goto datacheck;
-		case Opt_data_writeback:
-			data_opt = EXT3_MOUNT_WRITEBACK_DATA;
-		datacheck:
-			if (is_remount) {
-				if (test_opt(sb, DATA_FLAGS) == data_opt)
-					break;
-				ext3_msg(sb, KERN_ERR,
-					"error: cannot change "
-					"data mode on remount. The filesystem "
-					"is mounted in data=%s mode and you "
-					"try to remount it in data=%s mode.",
-					data_mode_string(test_opt(sb,
-							DATA_FLAGS)),
-					data_mode_string(data_opt));
-				return 0;
-			} else {
-				clear_opt(sbi->s_mount_opt, DATA_FLAGS);
-				sbi->s_mount_opt |= data_opt;
-			}
-			break;
-		case Opt_data_err_abort:
-			set_opt(sbi->s_mount_opt, DATA_ERR_ABORT);
-			break;
-		case Opt_data_err_ignore:
-			clear_opt(sbi->s_mount_opt, DATA_ERR_ABORT);
-			break;
-#ifdef CONFIG_QUOTA
-		case Opt_usrjquota:
-			if (!set_qf_name(sb, USRQUOTA, &args[0]))
-				return 0;
-			break;
-		case Opt_grpjquota:
-			if (!set_qf_name(sb, GRPQUOTA, &args[0]))
-				return 0;
-			break;
-		case Opt_offusrjquota:
-			if (!clear_qf_name(sb, USRQUOTA))
-				return 0;
-			break;
-		case Opt_offgrpjquota:
-			if (!clear_qf_name(sb, GRPQUOTA))
-				return 0;
-			break;
-		case Opt_jqfmt_vfsold:
-			qfmt = QFMT_VFS_OLD;
-			goto set_qf_format;
-		case Opt_jqfmt_vfsv0:
-			qfmt = QFMT_VFS_V0;
-			goto set_qf_format;
-		case Opt_jqfmt_vfsv1:
-			qfmt = QFMT_VFS_V1;
-set_qf_format:
-			if (sb_any_quota_loaded(sb) &&
-			    sbi->s_jquota_fmt != qfmt) {
-				ext3_msg(sb, KERN_ERR, "error: cannot change "
-					"journaled quota options when "
-					"quota turned on.");
-				return 0;
-			}
-			sbi->s_jquota_fmt = qfmt;
-			break;
-		case Opt_quota:
-		case Opt_usrquota:
-			set_opt(sbi->s_mount_opt, QUOTA);
-			set_opt(sbi->s_mount_opt, USRQUOTA);
-			break;
-		case Opt_grpquota:
-			set_opt(sbi->s_mount_opt, QUOTA);
-			set_opt(sbi->s_mount_opt, GRPQUOTA);
-			break;
-		case Opt_noquota:
-			if (sb_any_quota_loaded(sb)) {
-				ext3_msg(sb, KERN_ERR, "error: cannot change "
-					"quota options when quota turned on.");
-				return 0;
-			}
-			clear_opt(sbi->s_mount_opt, QUOTA);
-			clear_opt(sbi->s_mount_opt, USRQUOTA);
-			clear_opt(sbi->s_mount_opt, GRPQUOTA);
-			break;
-#else
-		case Opt_quota:
-		case Opt_usrquota:
-		case Opt_grpquota:
-			ext3_msg(sb, KERN_ERR,
-				"error: quota options not supported.");
-			break;
-		case Opt_usrjquota:
-		case Opt_grpjquota:
-		case Opt_offusrjquota:
-		case Opt_offgrpjquota:
-		case Opt_jqfmt_vfsold:
-		case Opt_jqfmt_vfsv0:
-		case Opt_jqfmt_vfsv1:
-			ext3_msg(sb, KERN_ERR,
-				"error: journaled quota options not "
-				"supported.");
-			break;
-		case Opt_noquota:
-			break;
-#endif
-		case Opt_abort:
-			set_opt(sbi->s_mount_opt, ABORT);
-			break;
-		case Opt_nobarrier:
-			clear_opt(sbi->s_mount_opt, BARRIER);
-			break;
-		case Opt_barrier:
-			if (args[0].from) {
-				if (match_int(&args[0], &option))
-					return 0;
-			} else
-				option = 1;	/* No argument, default to 1 */
-			if (option)
-				set_opt(sbi->s_mount_opt, BARRIER);
-			else
-				clear_opt(sbi->s_mount_opt, BARRIER);
-			break;
-		case Opt_ignore:
-			break;
-		case Opt_resize:
-			if (!is_remount) {
-				ext3_msg(sb, KERN_ERR,
-					"error: resize option only available "
-					"for remount");
-				return 0;
-			}
-			if (match_int(&args[0], &option) != 0)
-				return 0;
-			*n_blocks_count = option;
-			break;
-		case Opt_nobh:
-			ext3_msg(sb, KERN_WARNING,
-				"warning: ignoring deprecated nobh option");
-			break;
-		case Opt_bh:
-			ext3_msg(sb, KERN_WARNING,
-				"warning: ignoring deprecated bh option");
-			break;
-		default:
-			ext3_msg(sb, KERN_ERR,
-				"error: unrecognized mount option \"%s\" "
-				"or missing value", p);
-			return 0;
-		}
-	}
-#ifdef CONFIG_QUOTA
-	if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
-		if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
-			clear_opt(sbi->s_mount_opt, USRQUOTA);
-		if (test_opt(sb, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA])
-			clear_opt(sbi->s_mount_opt, GRPQUOTA);
-
-		if (test_opt(sb, GRPQUOTA) || test_opt(sb, USRQUOTA)) {
-			ext3_msg(sb, KERN_ERR, "error: old and new quota "
-					"format mixing.");
-			return 0;
-		}
-
-		if (!sbi->s_jquota_fmt) {
-			ext3_msg(sb, KERN_ERR, "error: journaled quota format "
-					"not specified.");
-			return 0;
-		}
-	}
-#endif
-	return 1;
-}
-
-static int ext3_setup_super(struct super_block *sb, struct ext3_super_block *es,
-			    int read_only)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	int res = 0;
-
-	if (le32_to_cpu(es->s_rev_level) > EXT3_MAX_SUPP_REV) {
-		ext3_msg(sb, KERN_ERR,
-			"error: revision level too high, "
-			"forcing read-only mode");
-		res = MS_RDONLY;
-	}
-	if (read_only)
-		return res;
-	if (!(sbi->s_mount_state & EXT3_VALID_FS))
-		ext3_msg(sb, KERN_WARNING,
-			"warning: mounting unchecked fs, "
-			"running e2fsck is recommended");
-	else if ((sbi->s_mount_state & EXT3_ERROR_FS))
-		ext3_msg(sb, KERN_WARNING,
-			"warning: mounting fs with errors, "
-			"running e2fsck is recommended");
-	else if ((__s16) le16_to_cpu(es->s_max_mnt_count) > 0 &&
-		 le16_to_cpu(es->s_mnt_count) >=
-			le16_to_cpu(es->s_max_mnt_count))
-		ext3_msg(sb, KERN_WARNING,
-			"warning: maximal mount count reached, "
-			"running e2fsck is recommended");
-	else if (le32_to_cpu(es->s_checkinterval) &&
-		(le32_to_cpu(es->s_lastcheck) +
-			le32_to_cpu(es->s_checkinterval) <= get_seconds()))
-		ext3_msg(sb, KERN_WARNING,
-			"warning: checktime reached, "
-			"running e2fsck is recommended");
-#if 0
-		/* @@@ We _will_ want to clear the valid bit if we find
-                   inconsistencies, to force a fsck at reboot.  But for
-                   a plain journaled filesystem we can keep it set as
-                   valid forever! :) */
-	es->s_state &= cpu_to_le16(~EXT3_VALID_FS);
-#endif
-	if (!le16_to_cpu(es->s_max_mnt_count))
-		es->s_max_mnt_count = cpu_to_le16(EXT3_DFL_MAX_MNT_COUNT);
-	le16_add_cpu(&es->s_mnt_count, 1);
-	es->s_mtime = cpu_to_le32(get_seconds());
-	ext3_update_dynamic_rev(sb);
-	EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
-
-	ext3_commit_super(sb, es, 1);
-	if (test_opt(sb, DEBUG))
-		ext3_msg(sb, KERN_INFO, "[bs=%lu, gc=%lu, "
-				"bpg=%lu, ipg=%lu, mo=%04lx]",
-			sb->s_blocksize,
-			sbi->s_groups_count,
-			EXT3_BLOCKS_PER_GROUP(sb),
-			EXT3_INODES_PER_GROUP(sb),
-			sbi->s_mount_opt);
-
-	if (EXT3_SB(sb)->s_journal->j_inode == NULL) {
-		char b[BDEVNAME_SIZE];
-		ext3_msg(sb, KERN_INFO, "using external journal on %s",
-			bdevname(EXT3_SB(sb)->s_journal->j_dev, b));
-	} else {
-		ext3_msg(sb, KERN_INFO, "using internal journal");
-	}
-	cleancache_init_fs(sb);
-	return res;
-}
-
-/* Called at mount-time, super-block is locked */
-static int ext3_check_descriptors(struct super_block *sb)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	int i;
-
-	ext3_debug ("Checking group descriptors");
-
-	for (i = 0; i < sbi->s_groups_count; i++) {
-		struct ext3_group_desc *gdp = ext3_get_group_desc(sb, i, NULL);
-		ext3_fsblk_t first_block = ext3_group_first_block_no(sb, i);
-		ext3_fsblk_t last_block;
-
-		if (i == sbi->s_groups_count - 1)
-			last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1;
-		else
-			last_block = first_block +
-				(EXT3_BLOCKS_PER_GROUP(sb) - 1);
-
-		if (le32_to_cpu(gdp->bg_block_bitmap) < first_block ||
-		    le32_to_cpu(gdp->bg_block_bitmap) > last_block)
-		{
-			ext3_error (sb, "ext3_check_descriptors",
-				    "Block bitmap for group %d"
-				    " not in group (block %lu)!",
-				    i, (unsigned long)
-					le32_to_cpu(gdp->bg_block_bitmap));
-			return 0;
-		}
-		if (le32_to_cpu(gdp->bg_inode_bitmap) < first_block ||
-		    le32_to_cpu(gdp->bg_inode_bitmap) > last_block)
-		{
-			ext3_error (sb, "ext3_check_descriptors",
-				    "Inode bitmap for group %d"
-				    " not in group (block %lu)!",
-				    i, (unsigned long)
-					le32_to_cpu(gdp->bg_inode_bitmap));
-			return 0;
-		}
-		if (le32_to_cpu(gdp->bg_inode_table) < first_block ||
-		    le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group - 1 >
-		    last_block)
-		{
-			ext3_error (sb, "ext3_check_descriptors",
-				    "Inode table for group %d"
-				    " not in group (block %lu)!",
-				    i, (unsigned long)
-					le32_to_cpu(gdp->bg_inode_table));
-			return 0;
-		}
-	}
-
-	sbi->s_es->s_free_blocks_count=cpu_to_le32(ext3_count_free_blocks(sb));
-	sbi->s_es->s_free_inodes_count=cpu_to_le32(ext3_count_free_inodes(sb));
-	return 1;
-}
-
-
-/* ext3_orphan_cleanup() walks a singly-linked list of inodes (starting at
- * the superblock) which were deleted from all directories, but held open by
- * a process at the time of a crash.  We walk the list and try to delete these
- * inodes at recovery time (only with a read-write filesystem).
- *
- * In order to keep the orphan inode chain consistent during traversal (in
- * case of crash during recovery), we link each inode into the superblock
- * orphan list_head and handle it the same way as an inode deletion during
- * normal operation (which journals the operations for us).
- *
- * We only do an iget() and an iput() on each inode, which is very safe if we
- * accidentally point at an in-use or already deleted inode.  The worst that
- * can happen in this case is that we get a "bit already cleared" message from
- * ext3_free_inode().  The only reason we would point at a wrong inode is if
- * e2fsck was run on this filesystem, and it must have already done the orphan
- * inode cleanup for us, so we can safely abort without any further action.
- */
-static void ext3_orphan_cleanup (struct super_block * sb,
-				 struct ext3_super_block * es)
-{
-	unsigned int s_flags = sb->s_flags;
-	int nr_orphans = 0, nr_truncates = 0;
-#ifdef CONFIG_QUOTA
-	int i;
-#endif
-	if (!es->s_last_orphan) {
-		jbd_debug(4, "no orphan inodes to clean up\n");
-		return;
-	}
-
-	if (bdev_read_only(sb->s_bdev)) {
-		ext3_msg(sb, KERN_ERR, "error: write access "
-			"unavailable, skipping orphan cleanup.");
-		return;
-	}
-
-	/* Check if feature set allows readwrite operations */
-	if (EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP)) {
-		ext3_msg(sb, KERN_INFO, "Skipping orphan cleanup due to "
-			 "unknown ROCOMPAT features");
-		return;
-	}
-
-	if (EXT3_SB(sb)->s_mount_state & EXT3_ERROR_FS) {
-		/* don't clear list on RO mount w/ errors */
-		if (es->s_last_orphan && !(s_flags & MS_RDONLY)) {
-			jbd_debug(1, "Errors on filesystem, "
-				  "clearing orphan list.\n");
-			es->s_last_orphan = 0;
-		}
-		jbd_debug(1, "Skipping orphan recovery on fs with errors.\n");
-		return;
-	}
-
-	if (s_flags & MS_RDONLY) {
-		ext3_msg(sb, KERN_INFO, "orphan cleanup on readonly fs");
-		sb->s_flags &= ~MS_RDONLY;
-	}
-#ifdef CONFIG_QUOTA
-	/* Needed for iput() to work correctly and not trash data */
-	sb->s_flags |= MS_ACTIVE;
-	/* Turn on quotas so that they are updated correctly */
-	for (i = 0; i < EXT3_MAXQUOTAS; i++) {
-		if (EXT3_SB(sb)->s_qf_names[i]) {
-			int ret = ext3_quota_on_mount(sb, i);
-			if (ret < 0)
-				ext3_msg(sb, KERN_ERR,
-					"error: cannot turn on journaled "
-					"quota: %d", ret);
-		}
-	}
-#endif
-
-	while (es->s_last_orphan) {
-		struct inode *inode;
-
-		inode = ext3_orphan_get(sb, le32_to_cpu(es->s_last_orphan));
-		if (IS_ERR(inode)) {
-			es->s_last_orphan = 0;
-			break;
-		}
-
-		list_add(&EXT3_I(inode)->i_orphan, &EXT3_SB(sb)->s_orphan);
-		dquot_initialize(inode);
-		if (inode->i_nlink) {
-			printk(KERN_DEBUG
-				"%s: truncating inode %lu to %Ld bytes\n",
-				__func__, inode->i_ino, inode->i_size);
-			jbd_debug(2, "truncating inode %lu to %Ld bytes\n",
-				  inode->i_ino, inode->i_size);
-			ext3_truncate(inode);
-			nr_truncates++;
-		} else {
-			printk(KERN_DEBUG
-				"%s: deleting unreferenced inode %lu\n",
-				__func__, inode->i_ino);
-			jbd_debug(2, "deleting unreferenced inode %lu\n",
-				  inode->i_ino);
-			nr_orphans++;
-		}
-		iput(inode);  /* The delete magic happens here! */
-	}
-
-#define PLURAL(x) (x), ((x)==1) ? "" : "s"
-
-	if (nr_orphans)
-		ext3_msg(sb, KERN_INFO, "%d orphan inode%s deleted",
-		       PLURAL(nr_orphans));
-	if (nr_truncates)
-		ext3_msg(sb, KERN_INFO, "%d truncate%s cleaned up",
-		       PLURAL(nr_truncates));
-#ifdef CONFIG_QUOTA
-	/* Turn quotas off */
-	for (i = 0; i < EXT3_MAXQUOTAS; i++) {
-		if (sb_dqopt(sb)->files[i])
-			dquot_quota_off(sb, i);
-	}
-#endif
-	sb->s_flags = s_flags; /* Restore MS_RDONLY status */
-}
-
-/*
- * Maximal file size.  There is a direct, and {,double-,triple-}indirect
- * block limit, and also a limit of (2^32 - 1) 512-byte sectors in i_blocks.
- * We need to be 1 filesystem block less than the 2^32 sector limit.
- */
-static loff_t ext3_max_size(int bits)
-{
-	loff_t res = EXT3_NDIR_BLOCKS;
-	int meta_blocks;
-	loff_t upper_limit;
-
-	/* This is calculated to be the largest file size for a
-	 * dense, file such that the total number of
-	 * sectors in the file, including data and all indirect blocks,
-	 * does not exceed 2^32 -1
-	 * __u32 i_blocks representing the total number of
-	 * 512 bytes blocks of the file
-	 */
-	upper_limit = (1LL << 32) - 1;
-
-	/* total blocks in file system block size */
-	upper_limit >>= (bits - 9);
-
-
-	/* indirect blocks */
-	meta_blocks = 1;
-	/* double indirect blocks */
-	meta_blocks += 1 + (1LL << (bits-2));
-	/* tripple indirect blocks */
-	meta_blocks += 1 + (1LL << (bits-2)) + (1LL << (2*(bits-2)));
-
-	upper_limit -= meta_blocks;
-	upper_limit <<= bits;
-
-	res += 1LL << (bits-2);
-	res += 1LL << (2*(bits-2));
-	res += 1LL << (3*(bits-2));
-	res <<= bits;
-	if (res > upper_limit)
-		res = upper_limit;
-
-	if (res > MAX_LFS_FILESIZE)
-		res = MAX_LFS_FILESIZE;
-
-	return res;
-}
-
-static ext3_fsblk_t descriptor_loc(struct super_block *sb,
-				    ext3_fsblk_t logic_sb_block,
-				    int nr)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	unsigned long bg, first_meta_bg;
-	int has_super = 0;
-
-	first_meta_bg = le32_to_cpu(sbi->s_es->s_first_meta_bg);
-
-	if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_META_BG) ||
-	    nr < first_meta_bg)
-		return (logic_sb_block + nr + 1);
-	bg = sbi->s_desc_per_block * nr;
-	if (ext3_bg_has_super(sb, bg))
-		has_super = 1;
-	return (has_super + ext3_group_first_block_no(sb, bg));
-}
-
-
-static int ext3_fill_super (struct super_block *sb, void *data, int silent)
-{
-	struct buffer_head * bh;
-	struct ext3_super_block *es = NULL;
-	struct ext3_sb_info *sbi;
-	ext3_fsblk_t block;
-	ext3_fsblk_t sb_block = get_sb_block(&data, sb);
-	ext3_fsblk_t logic_sb_block;
-	unsigned long offset = 0;
-	unsigned int journal_inum = 0;
-	unsigned long journal_devnum = 0;
-	unsigned long def_mount_opts;
-	struct inode *root;
-	int blocksize;
-	int hblock;
-	int db_count;
-	int i;
-	int needs_recovery;
-	int ret = -EINVAL;
-	__le32 features;
-	int err;
-
-	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
-	if (!sbi)
-		return -ENOMEM;
-
-	sbi->s_blockgroup_lock =
-		kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL);
-	if (!sbi->s_blockgroup_lock) {
-		kfree(sbi);
-		return -ENOMEM;
-	}
-	sb->s_fs_info = sbi;
-	sbi->s_sb_block = sb_block;
-
-	blocksize = sb_min_blocksize(sb, EXT3_MIN_BLOCK_SIZE);
-	if (!blocksize) {
-		ext3_msg(sb, KERN_ERR, "error: unable to set blocksize");
-		goto out_fail;
-	}
-
-	/*
-	 * The ext3 superblock will not be buffer aligned for other than 1kB
-	 * block sizes.  We need to calculate the offset from buffer start.
-	 */
-	if (blocksize != EXT3_MIN_BLOCK_SIZE) {
-		logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize;
-		offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize;
-	} else {
-		logic_sb_block = sb_block;
-	}
-
-	if (!(bh = sb_bread(sb, logic_sb_block))) {
-		ext3_msg(sb, KERN_ERR, "error: unable to read superblock");
-		goto out_fail;
-	}
-	/*
-	 * Note: s_es must be initialized as soon as possible because
-	 *       some ext3 macro-instructions depend on its value
-	 */
-	es = (struct ext3_super_block *) (bh->b_data + offset);
-	sbi->s_es = es;
-	sb->s_magic = le16_to_cpu(es->s_magic);
-	if (sb->s_magic != EXT3_SUPER_MAGIC)
-		goto cantfind_ext3;
-
-	/* Set defaults before we parse the mount options */
-	def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
-	if (def_mount_opts & EXT3_DEFM_DEBUG)
-		set_opt(sbi->s_mount_opt, DEBUG);
-	if (def_mount_opts & EXT3_DEFM_BSDGROUPS)
-		set_opt(sbi->s_mount_opt, GRPID);
-	if (def_mount_opts & EXT3_DEFM_UID16)
-		set_opt(sbi->s_mount_opt, NO_UID32);
-#ifdef CONFIG_EXT3_FS_XATTR
-	if (def_mount_opts & EXT3_DEFM_XATTR_USER)
-		set_opt(sbi->s_mount_opt, XATTR_USER);
-#endif
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
-	if (def_mount_opts & EXT3_DEFM_ACL)
-		set_opt(sbi->s_mount_opt, POSIX_ACL);
-#endif
-	if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_DATA)
-		set_opt(sbi->s_mount_opt, JOURNAL_DATA);
-	else if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_ORDERED)
-		set_opt(sbi->s_mount_opt, ORDERED_DATA);
-	else if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_WBACK)
-		set_opt(sbi->s_mount_opt, WRITEBACK_DATA);
-
-	if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_PANIC)
-		set_opt(sbi->s_mount_opt, ERRORS_PANIC);
-	else if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_CONTINUE)
-		set_opt(sbi->s_mount_opt, ERRORS_CONT);
-	else
-		set_opt(sbi->s_mount_opt, ERRORS_RO);
-
-	sbi->s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));
-	sbi->s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));
-
-	/* enable barriers by default */
-	set_opt(sbi->s_mount_opt, BARRIER);
-	set_opt(sbi->s_mount_opt, RESERVATION);
-
-	if (!parse_options ((char *) data, sb, &journal_inum, &journal_devnum,
-			    NULL, 0))
-		goto failed_mount;
-
-	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
-		(test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
-
-	if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV &&
-	    (EXT3_HAS_COMPAT_FEATURE(sb, ~0U) ||
-	     EXT3_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
-	     EXT3_HAS_INCOMPAT_FEATURE(sb, ~0U)))
-		ext3_msg(sb, KERN_WARNING,
-			"warning: feature flags set on rev 0 fs, "
-			"running e2fsck is recommended");
-	/*
-	 * Check feature flags regardless of the revision level, since we
-	 * previously didn't change the revision level when setting the flags,
-	 * so there is a chance incompat flags are set on a rev 0 filesystem.
-	 */
-	features = EXT3_HAS_INCOMPAT_FEATURE(sb, ~EXT3_FEATURE_INCOMPAT_SUPP);
-	if (features) {
-		ext3_msg(sb, KERN_ERR,
-			"error: couldn't mount because of unsupported "
-			"optional features (%x)", le32_to_cpu(features));
-		goto failed_mount;
-	}
-	features = EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP);
-	if (!(sb->s_flags & MS_RDONLY) && features) {
-		ext3_msg(sb, KERN_ERR,
-			"error: couldn't mount RDWR because of unsupported "
-			"optional features (%x)", le32_to_cpu(features));
-		goto failed_mount;
-	}
-	blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
-
-	if (blocksize < EXT3_MIN_BLOCK_SIZE ||
-	    blocksize > EXT3_MAX_BLOCK_SIZE) {
-		ext3_msg(sb, KERN_ERR,
-			"error: couldn't mount because of unsupported "
-			"filesystem blocksize %d", blocksize);
-		goto failed_mount;
-	}
-
-	hblock = bdev_logical_block_size(sb->s_bdev);
-	if (sb->s_blocksize != blocksize) {
-		/*
-		 * Make sure the blocksize for the filesystem is larger
-		 * than the hardware sectorsize for the machine.
-		 */
-		if (blocksize < hblock) {
-			ext3_msg(sb, KERN_ERR,
-				"error: fsblocksize %d too small for "
-				"hardware sectorsize %d", blocksize, hblock);
-			goto failed_mount;
-		}
-
-		brelse (bh);
-		if (!sb_set_blocksize(sb, blocksize)) {
-			ext3_msg(sb, KERN_ERR,
-				"error: bad blocksize %d", blocksize);
-			goto out_fail;
-		}
-		logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize;
-		offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize;
-		bh = sb_bread(sb, logic_sb_block);
-		if (!bh) {
-			ext3_msg(sb, KERN_ERR,
-			       "error: can't read superblock on 2nd try");
-			goto failed_mount;
-		}
-		es = (struct ext3_super_block *)(bh->b_data + offset);
-		sbi->s_es = es;
-		if (es->s_magic != cpu_to_le16(EXT3_SUPER_MAGIC)) {
-			ext3_msg(sb, KERN_ERR,
-				"error: magic mismatch");
-			goto failed_mount;
-		}
-	}
-
-	sb->s_maxbytes = ext3_max_size(sb->s_blocksize_bits);
-
-	if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV) {
-		sbi->s_inode_size = EXT3_GOOD_OLD_INODE_SIZE;
-		sbi->s_first_ino = EXT3_GOOD_OLD_FIRST_INO;
-	} else {
-		sbi->s_inode_size = le16_to_cpu(es->s_inode_size);
-		sbi->s_first_ino = le32_to_cpu(es->s_first_ino);
-		if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) ||
-		    (!is_power_of_2(sbi->s_inode_size)) ||
-		    (sbi->s_inode_size > blocksize)) {
-			ext3_msg(sb, KERN_ERR,
-				"error: unsupported inode size: %d",
-				sbi->s_inode_size);
-			goto failed_mount;
-		}
-	}
-	sbi->s_frag_size = EXT3_MIN_FRAG_SIZE <<
-				   le32_to_cpu(es->s_log_frag_size);
-	if (blocksize != sbi->s_frag_size) {
-		ext3_msg(sb, KERN_ERR,
-		       "error: fragsize %lu != blocksize %u (unsupported)",
-		       sbi->s_frag_size, blocksize);
-		goto failed_mount;
-	}
-	sbi->s_frags_per_block = 1;
-	sbi->s_blocks_per_group = le32_to_cpu(es->s_blocks_per_group);
-	sbi->s_frags_per_group = le32_to_cpu(es->s_frags_per_group);
-	sbi->s_inodes_per_group = le32_to_cpu(es->s_inodes_per_group);
-	if (EXT3_INODE_SIZE(sb) == 0 || EXT3_INODES_PER_GROUP(sb) == 0)
-		goto cantfind_ext3;
-	sbi->s_inodes_per_block = blocksize / EXT3_INODE_SIZE(sb);
-	if (sbi->s_inodes_per_block == 0)
-		goto cantfind_ext3;
-	sbi->s_itb_per_group = sbi->s_inodes_per_group /
-					sbi->s_inodes_per_block;
-	sbi->s_desc_per_block = blocksize / sizeof(struct ext3_group_desc);
-	sbi->s_sbh = bh;
-	sbi->s_mount_state = le16_to_cpu(es->s_state);
-	sbi->s_addr_per_block_bits = ilog2(EXT3_ADDR_PER_BLOCK(sb));
-	sbi->s_desc_per_block_bits = ilog2(EXT3_DESC_PER_BLOCK(sb));
-	for (i = 0; i < 4; i++)
-		sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);
-	sbi->s_def_hash_version = es->s_def_hash_version;
-	i = le32_to_cpu(es->s_flags);
-	if (i & EXT2_FLAGS_UNSIGNED_HASH)
-		sbi->s_hash_unsigned = 3;
-	else if ((i & EXT2_FLAGS_SIGNED_HASH) == 0) {
-#ifdef __CHAR_UNSIGNED__
-		es->s_flags |= cpu_to_le32(EXT2_FLAGS_UNSIGNED_HASH);
-		sbi->s_hash_unsigned = 3;
-#else
-		es->s_flags |= cpu_to_le32(EXT2_FLAGS_SIGNED_HASH);
-#endif
-	}
-
-	if (sbi->s_blocks_per_group > blocksize * 8) {
-		ext3_msg(sb, KERN_ERR,
-			"#blocks per group too big: %lu",
-			sbi->s_blocks_per_group);
-		goto failed_mount;
-	}
-	if (sbi->s_frags_per_group > blocksize * 8) {
-		ext3_msg(sb, KERN_ERR,
-			"error: #fragments per group too big: %lu",
-			sbi->s_frags_per_group);
-		goto failed_mount;
-	}
-	if (sbi->s_inodes_per_group > blocksize * 8) {
-		ext3_msg(sb, KERN_ERR,
-			"error: #inodes per group too big: %lu",
-			sbi->s_inodes_per_group);
-		goto failed_mount;
-	}
-
-	err = generic_check_addressable(sb->s_blocksize_bits,
-					le32_to_cpu(es->s_blocks_count));
-	if (err) {
-		ext3_msg(sb, KERN_ERR,
-			"error: filesystem is too large to mount safely");
-		if (sizeof(sector_t) < 8)
-			ext3_msg(sb, KERN_ERR,
-				"error: CONFIG_LBDAF not enabled");
-		ret = err;
-		goto failed_mount;
-	}
-
-	if (EXT3_BLOCKS_PER_GROUP(sb) == 0)
-		goto cantfind_ext3;
-	sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) -
-			       le32_to_cpu(es->s_first_data_block) - 1)
-				       / EXT3_BLOCKS_PER_GROUP(sb)) + 1;
-	db_count = DIV_ROUND_UP(sbi->s_groups_count, EXT3_DESC_PER_BLOCK(sb));
-	sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *),
-				    GFP_KERNEL);
-	if (sbi->s_group_desc == NULL) {
-		ext3_msg(sb, KERN_ERR,
-			"error: not enough memory");
-		ret = -ENOMEM;
-		goto failed_mount;
-	}
-
-	bgl_lock_init(sbi->s_blockgroup_lock);
-
-	for (i = 0; i < db_count; i++) {
-		block = descriptor_loc(sb, logic_sb_block, i);
-		sbi->s_group_desc[i] = sb_bread(sb, block);
-		if (!sbi->s_group_desc[i]) {
-			ext3_msg(sb, KERN_ERR,
-				"error: can't read group descriptor %d", i);
-			db_count = i;
-			goto failed_mount2;
-		}
-	}
-	if (!ext3_check_descriptors (sb)) {
-		ext3_msg(sb, KERN_ERR,
-			"error: group descriptors corrupted");
-		goto failed_mount2;
-	}
-	sbi->s_gdb_count = db_count;
-	get_random_bytes(&sbi->s_next_generation, sizeof(u32));
-	spin_lock_init(&sbi->s_next_gen_lock);
-
-	/* per fileystem reservation list head & lock */
-	spin_lock_init(&sbi->s_rsv_window_lock);
-	sbi->s_rsv_window_root = RB_ROOT;
-	/* Add a single, static dummy reservation to the start of the
-	 * reservation window list --- it gives us a placeholder for
-	 * append-at-start-of-list which makes the allocation logic
-	 * _much_ simpler. */
-	sbi->s_rsv_window_head.rsv_start = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
-	sbi->s_rsv_window_head.rsv_end = EXT3_RESERVE_WINDOW_NOT_ALLOCATED;
-	sbi->s_rsv_window_head.rsv_alloc_hit = 0;
-	sbi->s_rsv_window_head.rsv_goal_size = 0;
-	ext3_rsv_window_add(sb, &sbi->s_rsv_window_head);
-
-	/*
-	 * set up enough so that it can read an inode
-	 */
-	sb->s_op = &ext3_sops;
-	sb->s_export_op = &ext3_export_ops;
-	sb->s_xattr = ext3_xattr_handlers;
-#ifdef CONFIG_QUOTA
-	sb->s_qcop = &ext3_qctl_operations;
-	sb->dq_op = &ext3_quota_operations;
-	sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP;
-#endif
-	memcpy(sb->s_uuid, es->s_uuid, sizeof(es->s_uuid));
-	INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */
-	mutex_init(&sbi->s_orphan_lock);
-	mutex_init(&sbi->s_resize_lock);
-
-	sb->s_root = NULL;
-
-	needs_recovery = (es->s_last_orphan != 0 ||
-			  EXT3_HAS_INCOMPAT_FEATURE(sb,
-				    EXT3_FEATURE_INCOMPAT_RECOVER));
-
-	/*
-	 * The first inode we look at is the journal inode.  Don't try
-	 * root first: it may be modified in the journal!
-	 */
-	if (!test_opt(sb, NOLOAD) &&
-	    EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL)) {
-		if (ext3_load_journal(sb, es, journal_devnum))
-			goto failed_mount2;
-	} else if (journal_inum) {
-		if (ext3_create_journal(sb, es, journal_inum))
-			goto failed_mount2;
-	} else {
-		if (!silent)
-			ext3_msg(sb, KERN_ERR,
-				"error: no journal found. "
-				"mounting ext3 over ext2?");
-		goto failed_mount2;
-	}
-	err = percpu_counter_init(&sbi->s_freeblocks_counter,
-			ext3_count_free_blocks(sb), GFP_KERNEL);
-	if (!err) {
-		err = percpu_counter_init(&sbi->s_freeinodes_counter,
-				ext3_count_free_inodes(sb), GFP_KERNEL);
-	}
-	if (!err) {
-		err = percpu_counter_init(&sbi->s_dirs_counter,
-				ext3_count_dirs(sb), GFP_KERNEL);
-	}
-	if (err) {
-		ext3_msg(sb, KERN_ERR, "error: insufficient memory");
-		ret = err;
-		goto failed_mount3;
-	}
-
-	/* We have now updated the journal if required, so we can
-	 * validate the data journaling mode. */
-	switch (test_opt(sb, DATA_FLAGS)) {
-	case 0:
-		/* No mode set, assume a default based on the journal
-                   capabilities: ORDERED_DATA if the journal can
-                   cope, else JOURNAL_DATA */
-		if (journal_check_available_features
-		    (sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE))
-			set_opt(sbi->s_mount_opt, DEFAULT_DATA_MODE);
-		else
-			set_opt(sbi->s_mount_opt, JOURNAL_DATA);
-		break;
-
-	case EXT3_MOUNT_ORDERED_DATA:
-	case EXT3_MOUNT_WRITEBACK_DATA:
-		if (!journal_check_available_features
-		    (sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)) {
-			ext3_msg(sb, KERN_ERR,
-				"error: journal does not support "
-				"requested data journaling mode");
-			goto failed_mount3;
-		}
-	default:
-		break;
-	}
-
-	/*
-	 * The journal_load will have done any necessary log recovery,
-	 * so we can safely mount the rest of the filesystem now.
-	 */
-
-	root = ext3_iget(sb, EXT3_ROOT_INO);
-	if (IS_ERR(root)) {
-		ext3_msg(sb, KERN_ERR, "error: get root inode failed");
-		ret = PTR_ERR(root);
-		goto failed_mount3;
-	}
-	if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
-		iput(root);
-		ext3_msg(sb, KERN_ERR, "error: corrupt root inode, run e2fsck");
-		goto failed_mount3;
-	}
-	sb->s_root = d_make_root(root);
-	if (!sb->s_root) {
-		ext3_msg(sb, KERN_ERR, "error: get root dentry failed");
-		ret = -ENOMEM;
-		goto failed_mount3;
-	}
-
-	if (ext3_setup_super(sb, es, sb->s_flags & MS_RDONLY))
-		sb->s_flags |= MS_RDONLY;
-
-	EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS;
-	ext3_orphan_cleanup(sb, es);
-	EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS;
-	if (needs_recovery) {
-		ext3_mark_recovery_complete(sb, es);
-		ext3_msg(sb, KERN_INFO, "recovery complete");
-	}
-	ext3_msg(sb, KERN_INFO, "mounted filesystem with %s data mode",
-		test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ? "journal":
-		test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered":
-		"writeback");
-
-	return 0;
-
-cantfind_ext3:
-	if (!silent)
-		ext3_msg(sb, KERN_INFO,
-			"error: can't find ext3 filesystem on dev %s.",
-		       sb->s_id);
-	goto failed_mount;
-
-failed_mount3:
-	percpu_counter_destroy(&sbi->s_freeblocks_counter);
-	percpu_counter_destroy(&sbi->s_freeinodes_counter);
-	percpu_counter_destroy(&sbi->s_dirs_counter);
-	journal_destroy(sbi->s_journal);
-failed_mount2:
-	for (i = 0; i < db_count; i++)
-		brelse(sbi->s_group_desc[i]);
-	kfree(sbi->s_group_desc);
-failed_mount:
-#ifdef CONFIG_QUOTA
-	for (i = 0; i < EXT3_MAXQUOTAS; i++)
-		kfree(sbi->s_qf_names[i]);
-#endif
-	ext3_blkdev_remove(sbi);
-	brelse(bh);
-out_fail:
-	sb->s_fs_info = NULL;
-	kfree(sbi->s_blockgroup_lock);
-	kfree(sbi);
-	return ret;
-}
-
-/*
- * Setup any per-fs journal parameters now.  We'll do this both on
- * initial mount, once the journal has been initialised but before we've
- * done any recovery; and again on any subsequent remount.
- */
-static void ext3_init_journal_params(struct super_block *sb, journal_t *journal)
-{
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-
-	if (sbi->s_commit_interval)
-		journal->j_commit_interval = sbi->s_commit_interval;
-	/* We could also set up an ext3-specific default for the commit
-	 * interval here, but for now we'll just fall back to the jbd
-	 * default. */
-
-	spin_lock(&journal->j_state_lock);
-	if (test_opt(sb, BARRIER))
-		journal->j_flags |= JFS_BARRIER;
-	else
-		journal->j_flags &= ~JFS_BARRIER;
-	if (test_opt(sb, DATA_ERR_ABORT))
-		journal->j_flags |= JFS_ABORT_ON_SYNCDATA_ERR;
-	else
-		journal->j_flags &= ~JFS_ABORT_ON_SYNCDATA_ERR;
-	spin_unlock(&journal->j_state_lock);
-}
-
-static journal_t *ext3_get_journal(struct super_block *sb,
-				   unsigned int journal_inum)
-{
-	struct inode *journal_inode;
-	journal_t *journal;
-
-	/* First, test for the existence of a valid inode on disk.  Bad
-	 * things happen if we iget() an unused inode, as the subsequent
-	 * iput() will try to delete it. */
-
-	journal_inode = ext3_iget(sb, journal_inum);
-	if (IS_ERR(journal_inode)) {
-		ext3_msg(sb, KERN_ERR, "error: no journal found");
-		return NULL;
-	}
-	if (!journal_inode->i_nlink) {
-		make_bad_inode(journal_inode);
-		iput(journal_inode);
-		ext3_msg(sb, KERN_ERR, "error: journal inode is deleted");
-		return NULL;
-	}
-
-	jbd_debug(2, "Journal inode found at %p: %Ld bytes\n",
-		  journal_inode, journal_inode->i_size);
-	if (!S_ISREG(journal_inode->i_mode)) {
-		ext3_msg(sb, KERN_ERR, "error: invalid journal inode");
-		iput(journal_inode);
-		return NULL;
-	}
-
-	journal = journal_init_inode(journal_inode);
-	if (!journal) {
-		ext3_msg(sb, KERN_ERR, "error: could not load journal inode");
-		iput(journal_inode);
-		return NULL;
-	}
-	journal->j_private = sb;
-	ext3_init_journal_params(sb, journal);
-	return journal;
-}
-
-static journal_t *ext3_get_dev_journal(struct super_block *sb,
-				       dev_t j_dev)
-{
-	struct buffer_head * bh;
-	journal_t *journal;
-	ext3_fsblk_t start;
-	ext3_fsblk_t len;
-	int hblock, blocksize;
-	ext3_fsblk_t sb_block;
-	unsigned long offset;
-	struct ext3_super_block * es;
-	struct block_device *bdev;
-
-	bdev = ext3_blkdev_get(j_dev, sb);
-	if (bdev == NULL)
-		return NULL;
-
-	blocksize = sb->s_blocksize;
-	hblock = bdev_logical_block_size(bdev);
-	if (blocksize < hblock) {
-		ext3_msg(sb, KERN_ERR,
-			"error: blocksize too small for journal device");
-		goto out_bdev;
-	}
-
-	sb_block = EXT3_MIN_BLOCK_SIZE / blocksize;
-	offset = EXT3_MIN_BLOCK_SIZE % blocksize;
-	set_blocksize(bdev, blocksize);
-	if (!(bh = __bread(bdev, sb_block, blocksize))) {
-		ext3_msg(sb, KERN_ERR, "error: couldn't read superblock of "
-			"external journal");
-		goto out_bdev;
-	}
-
-	es = (struct ext3_super_block *) (bh->b_data + offset);
-	if ((le16_to_cpu(es->s_magic) != EXT3_SUPER_MAGIC) ||
-	    !(le32_to_cpu(es->s_feature_incompat) &
-	      EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
-		ext3_msg(sb, KERN_ERR, "error: external journal has "
-			"bad superblock");
-		brelse(bh);
-		goto out_bdev;
-	}
-
-	if (memcmp(EXT3_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) {
-		ext3_msg(sb, KERN_ERR, "error: journal UUID does not match");
-		brelse(bh);
-		goto out_bdev;
-	}
-
-	len = le32_to_cpu(es->s_blocks_count);
-	start = sb_block + 1;
-	brelse(bh);	/* we're done with the superblock */
-
-	journal = journal_init_dev(bdev, sb->s_bdev,
-					start, len, blocksize);
-	if (!journal) {
-		ext3_msg(sb, KERN_ERR,
-			"error: failed to create device journal");
-		goto out_bdev;
-	}
-	journal->j_private = sb;
-	if (!bh_uptodate_or_lock(journal->j_sb_buffer)) {
-		if (bh_submit_read(journal->j_sb_buffer)) {
-			ext3_msg(sb, KERN_ERR, "I/O error on journal device");
-			goto out_journal;
-		}
-	}
-	if (be32_to_cpu(journal->j_superblock->s_nr_users) != 1) {
-		ext3_msg(sb, KERN_ERR,
-			"error: external journal has more than one "
-			"user (unsupported) - %d",
-			be32_to_cpu(journal->j_superblock->s_nr_users));
-		goto out_journal;
-	}
-	EXT3_SB(sb)->journal_bdev = bdev;
-	ext3_init_journal_params(sb, journal);
-	return journal;
-out_journal:
-	journal_destroy(journal);
-out_bdev:
-	ext3_blkdev_put(bdev);
-	return NULL;
-}
-
-static int ext3_load_journal(struct super_block *sb,
-			     struct ext3_super_block *es,
-			     unsigned long journal_devnum)
-{
-	journal_t *journal;
-	unsigned int journal_inum = le32_to_cpu(es->s_journal_inum);
-	dev_t journal_dev;
-	int err = 0;
-	int really_read_only;
-
-	if (journal_devnum &&
-	    journal_devnum != le32_to_cpu(es->s_journal_dev)) {
-		ext3_msg(sb, KERN_INFO, "external journal device major/minor "
-			"numbers have changed");
-		journal_dev = new_decode_dev(journal_devnum);
-	} else
-		journal_dev = new_decode_dev(le32_to_cpu(es->s_journal_dev));
-
-	really_read_only = bdev_read_only(sb->s_bdev);
-
-	/*
-	 * Are we loading a blank journal or performing recovery after a
-	 * crash?  For recovery, we need to check in advance whether we
-	 * can get read-write access to the device.
-	 */
-
-	if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER)) {
-		if (sb->s_flags & MS_RDONLY) {
-			ext3_msg(sb, KERN_INFO,
-				"recovery required on readonly filesystem");
-			if (really_read_only) {
-				ext3_msg(sb, KERN_ERR, "error: write access "
-					"unavailable, cannot proceed");
-				return -EROFS;
-			}
-			ext3_msg(sb, KERN_INFO,
-				"write access will be enabled during recovery");
-		}
-	}
-
-	if (journal_inum && journal_dev) {
-		ext3_msg(sb, KERN_ERR, "error: filesystem has both journal "
-		       "and inode journals");
-		return -EINVAL;
-	}
-
-	if (journal_inum) {
-		if (!(journal = ext3_get_journal(sb, journal_inum)))
-			return -EINVAL;
-	} else {
-		if (!(journal = ext3_get_dev_journal(sb, journal_dev)))
-			return -EINVAL;
-	}
-
-	if (!(journal->j_flags & JFS_BARRIER))
-		printk(KERN_INFO "EXT3-fs: barriers not enabled\n");
-
-	if (!really_read_only && test_opt(sb, UPDATE_JOURNAL)) {
-		err = journal_update_format(journal);
-		if (err)  {
-			ext3_msg(sb, KERN_ERR, "error updating journal");
-			journal_destroy(journal);
-			return err;
-		}
-	}
-
-	if (!EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER))
-		err = journal_wipe(journal, !really_read_only);
-	if (!err)
-		err = journal_load(journal);
-
-	if (err) {
-		ext3_msg(sb, KERN_ERR, "error loading journal");
-		journal_destroy(journal);
-		return err;
-	}
-
-	EXT3_SB(sb)->s_journal = journal;
-	ext3_clear_journal_err(sb, es);
-
-	if (!really_read_only && journal_devnum &&
-	    journal_devnum != le32_to_cpu(es->s_journal_dev)) {
-		es->s_journal_dev = cpu_to_le32(journal_devnum);
-
-		/* Make sure we flush the recovery flag to disk. */
-		ext3_commit_super(sb, es, 1);
-	}
-
-	return 0;
-}
-
-static int ext3_create_journal(struct super_block *sb,
-			       struct ext3_super_block *es,
-			       unsigned int journal_inum)
-{
-	journal_t *journal;
-	int err;
-
-	if (sb->s_flags & MS_RDONLY) {
-		ext3_msg(sb, KERN_ERR,
-			"error: readonly filesystem when trying to "
-			"create journal");
-		return -EROFS;
-	}
-
-	journal = ext3_get_journal(sb, journal_inum);
-	if (!journal)
-		return -EINVAL;
-
-	ext3_msg(sb, KERN_INFO, "creating new journal on inode %u",
-	       journal_inum);
-
-	err = journal_create(journal);
-	if (err) {
-		ext3_msg(sb, KERN_ERR, "error creating journal");
-		journal_destroy(journal);
-		return -EIO;
-	}
-
-	EXT3_SB(sb)->s_journal = journal;
-
-	ext3_update_dynamic_rev(sb);
-	EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
-	EXT3_SET_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL);
-
-	es->s_journal_inum = cpu_to_le32(journal_inum);
-
-	/* Make sure we flush the recovery flag to disk. */
-	ext3_commit_super(sb, es, 1);
-
-	return 0;
-}
-
-static int ext3_commit_super(struct super_block *sb,
-			       struct ext3_super_block *es,
-			       int sync)
-{
-	struct buffer_head *sbh = EXT3_SB(sb)->s_sbh;
-	int error = 0;
-
-	if (!sbh)
-		return error;
-
-	if (buffer_write_io_error(sbh)) {
-		/*
-		 * Oh, dear.  A previous attempt to write the
-		 * superblock failed.  This could happen because the
-		 * USB device was yanked out.  Or it could happen to
-		 * be a transient write error and maybe the block will
-		 * be remapped.  Nothing we can do but to retry the
-		 * write and hope for the best.
-		 */
-		ext3_msg(sb, KERN_ERR, "previous I/O error to "
-		       "superblock detected");
-		clear_buffer_write_io_error(sbh);
-		set_buffer_uptodate(sbh);
-	}
-	/*
-	 * If the file system is mounted read-only, don't update the
-	 * superblock write time.  This avoids updating the superblock
-	 * write time when we are mounting the root file system
-	 * read/only but we need to replay the journal; at that point,
-	 * for people who are east of GMT and who make their clock
-	 * tick in localtime for Windows bug-for-bug compatibility,
-	 * the clock is set in the future, and this will cause e2fsck
-	 * to complain and force a full file system check.
-	 */
-	if (!(sb->s_flags & MS_RDONLY))
-		es->s_wtime = cpu_to_le32(get_seconds());
-	es->s_free_blocks_count = cpu_to_le32(ext3_count_free_blocks(sb));
-	es->s_free_inodes_count = cpu_to_le32(ext3_count_free_inodes(sb));
-	BUFFER_TRACE(sbh, "marking dirty");
-	mark_buffer_dirty(sbh);
-	if (sync) {
-		error = sync_dirty_buffer(sbh);
-		if (buffer_write_io_error(sbh)) {
-			ext3_msg(sb, KERN_ERR, "I/O error while writing "
-			       "superblock");
-			clear_buffer_write_io_error(sbh);
-			set_buffer_uptodate(sbh);
-		}
-	}
-	return error;
-}
-
-
-/*
- * Have we just finished recovery?  If so, and if we are mounting (or
- * remounting) the filesystem readonly, then we will end up with a
- * consistent fs on disk.  Record that fact.
- */
-static void ext3_mark_recovery_complete(struct super_block * sb,
-					struct ext3_super_block * es)
-{
-	journal_t *journal = EXT3_SB(sb)->s_journal;
-
-	journal_lock_updates(journal);
-	if (journal_flush(journal) < 0)
-		goto out;
-
-	if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) &&
-	    sb->s_flags & MS_RDONLY) {
-		EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
-		ext3_commit_super(sb, es, 1);
-	}
-
-out:
-	journal_unlock_updates(journal);
-}
-
-/*
- * If we are mounting (or read-write remounting) a filesystem whose journal
- * has recorded an error from a previous lifetime, move that error to the
- * main filesystem now.
- */
-static void ext3_clear_journal_err(struct super_block *sb,
-				   struct ext3_super_block *es)
-{
-	journal_t *journal;
-	int j_errno;
-	const char *errstr;
-
-	journal = EXT3_SB(sb)->s_journal;
-
-	/*
-	 * Now check for any error status which may have been recorded in the
-	 * journal by a prior ext3_error() or ext3_abort()
-	 */
-
-	j_errno = journal_errno(journal);
-	if (j_errno) {
-		char nbuf[16];
-
-		errstr = ext3_decode_error(sb, j_errno, nbuf);
-		ext3_warning(sb, __func__, "Filesystem error recorded "
-			     "from previous mount: %s", errstr);
-		ext3_warning(sb, __func__, "Marking fs in need of "
-			     "filesystem check.");
-
-		EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
-		es->s_state |= cpu_to_le16(EXT3_ERROR_FS);
-		ext3_commit_super (sb, es, 1);
-
-		journal_clear_err(journal);
-	}
-}
-
-/*
- * Force the running and committing transactions to commit,
- * and wait on the commit.
- */
-int ext3_force_commit(struct super_block *sb)
-{
-	journal_t *journal;
-	int ret;
-
-	if (sb->s_flags & MS_RDONLY)
-		return 0;
-
-	journal = EXT3_SB(sb)->s_journal;
-	ret = ext3_journal_force_commit(journal);
-	return ret;
-}
-
-static int ext3_sync_fs(struct super_block *sb, int wait)
-{
-	tid_t target;
-
-	trace_ext3_sync_fs(sb, wait);
-	/*
-	 * Writeback quota in non-journalled quota case - journalled quota has
-	 * no dirty dquots
-	 */
-	dquot_writeback_dquots(sb, -1);
-	if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) {
-		if (wait)
-			log_wait_commit(EXT3_SB(sb)->s_journal, target);
-	}
-	return 0;
-}
-
-/*
- * LVM calls this function before a (read-only) snapshot is created.  This
- * gives us a chance to flush the journal completely and mark the fs clean.
- */
-static int ext3_freeze(struct super_block *sb)
-{
-	int error = 0;
-	journal_t *journal;
-
-	if (!(sb->s_flags & MS_RDONLY)) {
-		journal = EXT3_SB(sb)->s_journal;
-
-		/* Now we set up the journal barrier. */
-		journal_lock_updates(journal);
-
-		/*
-		 * We don't want to clear needs_recovery flag when we failed
-		 * to flush the journal.
-		 */
-		error = journal_flush(journal);
-		if (error < 0)
-			goto out;
-
-		/* Journal blocked and flushed, clear needs_recovery flag. */
-		EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
-		error = ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1);
-		if (error)
-			goto out;
-	}
-	return 0;
-
-out:
-	journal_unlock_updates(journal);
-	return error;
-}
-
-/*
- * Called by LVM after the snapshot is done.  We need to reset the RECOVER
- * flag here, even though the filesystem is not technically dirty yet.
- */
-static int ext3_unfreeze(struct super_block *sb)
-{
-	if (!(sb->s_flags & MS_RDONLY)) {
-		/* Reser the needs_recovery flag before the fs is unlocked. */
-		EXT3_SET_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
-		ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1);
-		journal_unlock_updates(EXT3_SB(sb)->s_journal);
-	}
-	return 0;
-}
-
-static int ext3_remount (struct super_block * sb, int * flags, char * data)
-{
-	struct ext3_super_block * es;
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	ext3_fsblk_t n_blocks_count = 0;
-	unsigned long old_sb_flags;
-	struct ext3_mount_options old_opts;
-	int enable_quota = 0;
-	int err;
-#ifdef CONFIG_QUOTA
-	int i;
-#endif
-
-	sync_filesystem(sb);
-
-	/* Store the original options */
-	old_sb_flags = sb->s_flags;
-	old_opts.s_mount_opt = sbi->s_mount_opt;
-	old_opts.s_resuid = sbi->s_resuid;
-	old_opts.s_resgid = sbi->s_resgid;
-	old_opts.s_commit_interval = sbi->s_commit_interval;
-#ifdef CONFIG_QUOTA
-	old_opts.s_jquota_fmt = sbi->s_jquota_fmt;
-	for (i = 0; i < EXT3_MAXQUOTAS; i++)
-		if (sbi->s_qf_names[i]) {
-			old_opts.s_qf_names[i] = kstrdup(sbi->s_qf_names[i],
-							 GFP_KERNEL);
-			if (!old_opts.s_qf_names[i]) {
-				int j;
-
-				for (j = 0; j < i; j++)
-					kfree(old_opts.s_qf_names[j]);
-				return -ENOMEM;
-			}
-		} else
-			old_opts.s_qf_names[i] = NULL;
-#endif
-
-	/*
-	 * Allow the "check" option to be passed as a remount option.
-	 */
-	if (!parse_options(data, sb, NULL, NULL, &n_blocks_count, 1)) {
-		err = -EINVAL;
-		goto restore_opts;
-	}
-
-	if (test_opt(sb, ABORT))
-		ext3_abort(sb, __func__, "Abort forced by user");
-
-	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
-		(test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
-
-	es = sbi->s_es;
-
-	ext3_init_journal_params(sb, sbi->s_journal);
-
-	if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY) ||
-		n_blocks_count > le32_to_cpu(es->s_blocks_count)) {
-		if (test_opt(sb, ABORT)) {
-			err = -EROFS;
-			goto restore_opts;
-		}
-
-		if (*flags & MS_RDONLY) {
-			err = dquot_suspend(sb, -1);
-			if (err < 0)
-				goto restore_opts;
-
-			/*
-			 * First of all, the unconditional stuff we have to do
-			 * to disable replay of the journal when we next remount
-			 */
-			sb->s_flags |= MS_RDONLY;
-
-			/*
-			 * OK, test if we are remounting a valid rw partition
-			 * readonly, and if so set the rdonly flag and then
-			 * mark the partition as valid again.
-			 */
-			if (!(es->s_state & cpu_to_le16(EXT3_VALID_FS)) &&
-			    (sbi->s_mount_state & EXT3_VALID_FS))
-				es->s_state = cpu_to_le16(sbi->s_mount_state);
-
-			ext3_mark_recovery_complete(sb, es);
-		} else {
-			__le32 ret;
-			if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb,
-					~EXT3_FEATURE_RO_COMPAT_SUPP))) {
-				ext3_msg(sb, KERN_WARNING,
-					"warning: couldn't remount RDWR "
-					"because of unsupported optional "
-					"features (%x)", le32_to_cpu(ret));
-				err = -EROFS;
-				goto restore_opts;
-			}
-
-			/*
-			 * If we have an unprocessed orphan list hanging
-			 * around from a previously readonly bdev mount,
-			 * require a full umount & mount for now.
-			 */
-			if (es->s_last_orphan) {
-				ext3_msg(sb, KERN_WARNING, "warning: couldn't "
-				       "remount RDWR because of unprocessed "
-				       "orphan inode list.  Please "
-				       "umount & mount instead.");
-				err = -EINVAL;
-				goto restore_opts;
-			}
-
-			/*
-			 * Mounting a RDONLY partition read-write, so reread
-			 * and store the current valid flag.  (It may have
-			 * been changed by e2fsck since we originally mounted
-			 * the partition.)
-			 */
-			ext3_clear_journal_err(sb, es);
-			sbi->s_mount_state = le16_to_cpu(es->s_state);
-			if ((err = ext3_group_extend(sb, es, n_blocks_count)))
-				goto restore_opts;
-			if (!ext3_setup_super (sb, es, 0))
-				sb->s_flags &= ~MS_RDONLY;
-			enable_quota = 1;
-		}
-	}
-#ifdef CONFIG_QUOTA
-	/* Release old quota file names */
-	for (i = 0; i < EXT3_MAXQUOTAS; i++)
-		kfree(old_opts.s_qf_names[i]);
-#endif
-	if (enable_quota)
-		dquot_resume(sb, -1);
-	return 0;
-restore_opts:
-	sb->s_flags = old_sb_flags;
-	sbi->s_mount_opt = old_opts.s_mount_opt;
-	sbi->s_resuid = old_opts.s_resuid;
-	sbi->s_resgid = old_opts.s_resgid;
-	sbi->s_commit_interval = old_opts.s_commit_interval;
-#ifdef CONFIG_QUOTA
-	sbi->s_jquota_fmt = old_opts.s_jquota_fmt;
-	for (i = 0; i < EXT3_MAXQUOTAS; i++) {
-		kfree(sbi->s_qf_names[i]);
-		sbi->s_qf_names[i] = old_opts.s_qf_names[i];
-	}
-#endif
-	return err;
-}
-
-static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf)
-{
-	struct super_block *sb = dentry->d_sb;
-	struct ext3_sb_info *sbi = EXT3_SB(sb);
-	struct ext3_super_block *es = sbi->s_es;
-	u64 fsid;
-
-	if (test_opt(sb, MINIX_DF)) {
-		sbi->s_overhead_last = 0;
-	} else if (sbi->s_blocks_last != le32_to_cpu(es->s_blocks_count)) {
-		unsigned long ngroups = sbi->s_groups_count, i;
-		ext3_fsblk_t overhead = 0;
-		smp_rmb();
-
-		/*
-		 * Compute the overhead (FS structures).  This is constant
-		 * for a given filesystem unless the number of block groups
-		 * changes so we cache the previous value until it does.
-		 */
-
-		/*
-		 * All of the blocks before first_data_block are
-		 * overhead
-		 */
-		overhead = le32_to_cpu(es->s_first_data_block);
-
-		/*
-		 * Add the overhead attributed to the superblock and
-		 * block group descriptors.  If the sparse superblocks
-		 * feature is turned on, then not all groups have this.
-		 */
-		for (i = 0; i < ngroups; i++) {
-			overhead += ext3_bg_has_super(sb, i) +
-				ext3_bg_num_gdb(sb, i);
-			cond_resched();
-		}
-
-		/*
-		 * Every block group has an inode bitmap, a block
-		 * bitmap, and an inode table.
-		 */
-		overhead += ngroups * (2 + sbi->s_itb_per_group);
-
-		/* Add the internal journal blocks as well */
-		if (sbi->s_journal && !sbi->journal_bdev)
-			overhead += sbi->s_journal->j_maxlen;
-
-		sbi->s_overhead_last = overhead;
-		smp_wmb();
-		sbi->s_blocks_last = le32_to_cpu(es->s_blocks_count);
-	}
-
-	buf->f_type = EXT3_SUPER_MAGIC;
-	buf->f_bsize = sb->s_blocksize;
-	buf->f_blocks = le32_to_cpu(es->s_blocks_count) - sbi->s_overhead_last;
-	buf->f_bfree = percpu_counter_sum_positive(&sbi->s_freeblocks_counter);
-	buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count);
-	if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count))
-		buf->f_bavail = 0;
-	buf->f_files = le32_to_cpu(es->s_inodes_count);
-	buf->f_ffree = percpu_counter_sum_positive(&sbi->s_freeinodes_counter);
-	buf->f_namelen = EXT3_NAME_LEN;
-	fsid = le64_to_cpup((void *)es->s_uuid) ^
-	       le64_to_cpup((void *)es->s_uuid + sizeof(u64));
-	buf->f_fsid.val[0] = fsid & 0xFFFFFFFFUL;
-	buf->f_fsid.val[1] = (fsid >> 32) & 0xFFFFFFFFUL;
-	return 0;
-}
-
-/* Helper function for writing quotas on sync - we need to start transaction before quota file
- * is locked for write. Otherwise the are possible deadlocks:
- * Process 1                         Process 2
- * ext3_create()                     quota_sync()
- *   journal_start()                   write_dquot()
- *   dquot_initialize()                       down(dqio_mutex)
- *     down(dqio_mutex)                    journal_start()
- *
- */
-
-#ifdef CONFIG_QUOTA
-
-static inline struct inode *dquot_to_inode(struct dquot *dquot)
-{
-	return sb_dqopt(dquot->dq_sb)->files[dquot->dq_id.type];
-}
-
-static int ext3_write_dquot(struct dquot *dquot)
-{
-	int ret, err;
-	handle_t *handle;
-	struct inode *inode;
-
-	inode = dquot_to_inode(dquot);
-	handle = ext3_journal_start(inode,
-					EXT3_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-	ret = dquot_commit(dquot);
-	err = ext3_journal_stop(handle);
-	if (!ret)
-		ret = err;
-	return ret;
-}
-
-static int ext3_acquire_dquot(struct dquot *dquot)
-{
-	int ret, err;
-	handle_t *handle;
-
-	handle = ext3_journal_start(dquot_to_inode(dquot),
-					EXT3_QUOTA_INIT_BLOCKS(dquot->dq_sb));
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-	ret = dquot_acquire(dquot);
-	err = ext3_journal_stop(handle);
-	if (!ret)
-		ret = err;
-	return ret;
-}
-
-static int ext3_release_dquot(struct dquot *dquot)
-{
-	int ret, err;
-	handle_t *handle;
-
-	handle = ext3_journal_start(dquot_to_inode(dquot),
-					EXT3_QUOTA_DEL_BLOCKS(dquot->dq_sb));
-	if (IS_ERR(handle)) {
-		/* Release dquot anyway to avoid endless cycle in dqput() */
-		dquot_release(dquot);
-		return PTR_ERR(handle);
-	}
-	ret = dquot_release(dquot);
-	err = ext3_journal_stop(handle);
-	if (!ret)
-		ret = err;
-	return ret;
-}
-
-static int ext3_mark_dquot_dirty(struct dquot *dquot)
-{
-	/* Are we journaling quotas? */
-	if (EXT3_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] ||
-	    EXT3_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) {
-		dquot_mark_dquot_dirty(dquot);
-		return ext3_write_dquot(dquot);
-	} else {
-		return dquot_mark_dquot_dirty(dquot);
-	}
-}
-
-static int ext3_write_info(struct super_block *sb, int type)
-{
-	int ret, err;
-	handle_t *handle;
-
-	/* Data block + inode block */
-	handle = ext3_journal_start(d_inode(sb->s_root), 2);
-	if (IS_ERR(handle))
-		return PTR_ERR(handle);
-	ret = dquot_commit_info(sb, type);
-	err = ext3_journal_stop(handle);
-	if (!ret)
-		ret = err;
-	return ret;
-}
-
-/*
- * Turn on quotas during mount time - we need to find
- * the quota file and such...
- */
-static int ext3_quota_on_mount(struct super_block *sb, int type)
-{
-	return dquot_quota_on_mount(sb, EXT3_SB(sb)->s_qf_names[type],
-					EXT3_SB(sb)->s_jquota_fmt, type);
-}
-
-/*
- * Standard function to be called on quota_on
- */
-static int ext3_quota_on(struct super_block *sb, int type, int format_id,
-			 struct path *path)
-{
-	int err;
-
-	if (!test_opt(sb, QUOTA))
-		return -EINVAL;
-
-	/* Quotafile not on the same filesystem? */
-	if (path->dentry->d_sb != sb)
-		return -EXDEV;
-	/* Journaling quota? */
-	if (EXT3_SB(sb)->s_qf_names[type]) {
-		/* Quotafile not of fs root? */
-		if (path->dentry->d_parent != sb->s_root)
-			ext3_msg(sb, KERN_WARNING,
-				"warning: Quota file not on filesystem root. "
-				"Journaled quota will not work.");
-	}
-
-	/*
-	 * When we journal data on quota file, we have to flush journal to see
-	 * all updates to the file when we bypass pagecache...
-	 */
-	if (ext3_should_journal_data(d_inode(path->dentry))) {
-		/*
-		 * We don't need to lock updates but journal_flush() could
-		 * otherwise be livelocked...
-		 */
-		journal_lock_updates(EXT3_SB(sb)->s_journal);
-		err = journal_flush(EXT3_SB(sb)->s_journal);
-		journal_unlock_updates(EXT3_SB(sb)->s_journal);
-		if (err)
-			return err;
-	}
-
-	return dquot_quota_on(sb, type, format_id, path);
-}
-
-/* Read data from quotafile - avoid pagecache and such because we cannot afford
- * acquiring the locks... As quota files are never truncated and quota code
- * itself serializes the operations (and no one else should touch the files)
- * we don't have to be afraid of races */
-static ssize_t ext3_quota_read(struct super_block *sb, int type, char *data,
-			       size_t len, loff_t off)
-{
-	struct inode *inode = sb_dqopt(sb)->files[type];
-	sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb);
-	int err = 0;
-	int offset = off & (sb->s_blocksize - 1);
-	int tocopy;
-	size_t toread;
-	struct buffer_head *bh;
-	loff_t i_size = i_size_read(inode);
-
-	if (off > i_size)
-		return 0;
-	if (off+len > i_size)
-		len = i_size-off;
-	toread = len;
-	while (toread > 0) {
-		tocopy = sb->s_blocksize - offset < toread ?
-				sb->s_blocksize - offset : toread;
-		bh = ext3_bread(NULL, inode, blk, 0, &err);
-		if (err)
-			return err;
-		if (!bh)	/* A hole? */
-			memset(data, 0, tocopy);
-		else
-			memcpy(data, bh->b_data+offset, tocopy);
-		brelse(bh);
-		offset = 0;
-		toread -= tocopy;
-		data += tocopy;
-		blk++;
-	}
-	return len;
-}
-
-/* Write to quotafile (we know the transaction is already started and has
- * enough credits) */
-static ssize_t ext3_quota_write(struct super_block *sb, int type,
-				const char *data, size_t len, loff_t off)
-{
-	struct inode *inode = sb_dqopt(sb)->files[type];
-	sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb);
-	int err = 0;
-	int offset = off & (sb->s_blocksize - 1);
-	int journal_quota = EXT3_SB(sb)->s_qf_names[type] != NULL;
-	struct buffer_head *bh;
-	handle_t *handle = journal_current_handle();
-
-	if (!handle) {
-		ext3_msg(sb, KERN_WARNING,
-			"warning: quota write (off=%llu, len=%llu)"
-			" cancelled because transaction is not started.",
-			(unsigned long long)off, (unsigned long long)len);
-		return -EIO;
-	}
-
-	/*
-	 * Since we account only one data block in transaction credits,
-	 * then it is impossible to cross a block boundary.
-	 */
-	if (sb->s_blocksize - offset < len) {
-		ext3_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)"
-			" cancelled because not block aligned",
-			(unsigned long long)off, (unsigned long long)len);
-		return -EIO;
-	}
-	bh = ext3_bread(handle, inode, blk, 1, &err);
-	if (!bh)
-		goto out;
-	if (journal_quota) {
-		err = ext3_journal_get_write_access(handle, bh);
-		if (err) {
-			brelse(bh);
-			goto out;
-		}
-	}
-	lock_buffer(bh);
-	memcpy(bh->b_data+offset, data, len);
-	flush_dcache_page(bh->b_page);
-	unlock_buffer(bh);
-	if (journal_quota)
-		err = ext3_journal_dirty_metadata(handle, bh);
-	else {
-		/* Always do at least ordered writes for quotas */
-		err = ext3_journal_dirty_data(handle, bh);
-		mark_buffer_dirty(bh);
-	}
-	brelse(bh);
-out:
-	if (err)
-		return err;
-	if (inode->i_size < off + len) {
-		i_size_write(inode, off + len);
-		EXT3_I(inode)->i_disksize = inode->i_size;
-	}
-	inode->i_version++;
-	inode->i_mtime = inode->i_ctime = CURRENT_TIME;
-	ext3_mark_inode_dirty(handle, inode);
-	return len;
-}
-
-#endif
-
-static struct dentry *ext3_mount(struct file_system_type *fs_type,
-	int flags, const char *dev_name, void *data)
-{
-	return mount_bdev(fs_type, flags, dev_name, data, ext3_fill_super);
-}
-
-static struct file_system_type ext3_fs_type = {
-	.owner		= THIS_MODULE,
-	.name		= "ext3",
-	.mount		= ext3_mount,
-	.kill_sb	= kill_block_super,
-	.fs_flags	= FS_REQUIRES_DEV,
-};
-MODULE_ALIAS_FS("ext3");
-
-static int __init init_ext3_fs(void)
-{
-	int err = init_ext3_xattr();
-	if (err)
-		return err;
-	err = init_inodecache();
-	if (err)
-		goto out1;
-        err = register_filesystem(&ext3_fs_type);
-	if (err)
-		goto out;
-	return 0;
-out:
-	destroy_inodecache();
-out1:
-	exit_ext3_xattr();
-	return err;
-}
-
-static void __exit exit_ext3_fs(void)
-{
-	unregister_filesystem(&ext3_fs_type);
-	destroy_inodecache();
-	exit_ext3_xattr();
-}
-
-MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others");
-MODULE_DESCRIPTION("Second Extended Filesystem with journaling extensions");
-MODULE_LICENSE("GPL");
-module_init(init_ext3_fs)
-module_exit(exit_ext3_fs)
diff --git a/fs/ext3/symlink.c b/fs/ext3/symlink.c
deleted file mode 100644
index c08c59094..000000000
--- a/fs/ext3/symlink.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- *  linux/fs/ext3/symlink.c
- *
- * Only fast symlinks left here - the rest is done by generic code. AV, 1999
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- *
- *  from
- *
- *  linux/fs/minix/symlink.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *
- *  ext3 symlink handling code
- */
-
-#include "ext3.h"
-#include "xattr.h"
-
-const struct inode_operations ext3_symlink_inode_operations = {
-	.readlink	= generic_readlink,
-	.follow_link	= page_follow_link_light,
-	.put_link	= page_put_link,
-	.setattr	= ext3_setattr,
-#ifdef CONFIG_EXT3_FS_XATTR
-	.setxattr	= generic_setxattr,
-	.getxattr	= generic_getxattr,
-	.listxattr	= ext3_listxattr,
-	.removexattr	= generic_removexattr,
-#endif
-};
-
-const struct inode_operations ext3_fast_symlink_inode_operations = {
-	.readlink	= generic_readlink,
-	.follow_link	= simple_follow_link,
-	.setattr	= ext3_setattr,
-#ifdef CONFIG_EXT3_FS_XATTR
-	.setxattr	= generic_setxattr,
-	.getxattr	= generic_getxattr,
-	.listxattr	= ext3_listxattr,
-	.removexattr	= generic_removexattr,
-#endif
-};
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
deleted file mode 100644
index 7cf36501c..000000000
--- a/fs/ext3/xattr.c
+++ /dev/null
@@ -1,1330 +0,0 @@
-/*
- * linux/fs/ext3/xattr.c
- *
- * Copyright (C) 2001-2003 Andreas Gruenbacher, <agruen@suse.de>
- *
- * Fix by Harrison Xing <harrison@mountainviewdata.com>.
- * Ext3 code with a lot of help from Eric Jarman <ejarman@acm.org>.
- * Extended attributes for symlinks and special files added per
- *  suggestion of Luka Renko <luka.renko@hermes.si>.
- * xattr consolidation Copyright (c) 2004 James Morris <jmorris@redhat.com>,
- *  Red Hat Inc.
- * ea-in-inode support by Alex Tomas <alex@clusterfs.com> aka bzzz
- *  and Andreas Gruenbacher <agruen@suse.de>.
- */
-
-/*
- * Extended attributes are stored directly in inodes (on file systems with
- * inodes bigger than 128 bytes) and on additional disk blocks. The i_file_acl
- * field contains the block number if an inode uses an additional block. All
- * attributes must fit in the inode and one additional block. Blocks that
- * contain the identical set of attributes may be shared among several inodes.
- * Identical blocks are detected by keeping a cache of blocks that have
- * recently been accessed.
- *
- * The attributes in inodes and on blocks have a different header; the entries
- * are stored in the same format:
- *
- *   +------------------+
- *   | header           |
- *   | entry 1          | |
- *   | entry 2          | | growing downwards
- *   | entry 3          | v
- *   | four null bytes  |
- *   | . . .            |
- *   | value 1          | ^
- *   | value 3          | | growing upwards
- *   | value 2          | |
- *   +------------------+
- *
- * The header is followed by multiple entry descriptors. In disk blocks, the
- * entry descriptors are kept sorted. In inodes, they are unsorted. The
- * attribute values are aligned to the end of the block in no specific order.
- *
- * Locking strategy
- * ----------------
- * EXT3_I(inode)->i_file_acl is protected by EXT3_I(inode)->xattr_sem.
- * EA blocks are only changed if they are exclusive to an inode, so
- * holding xattr_sem also means that nothing but the EA block's reference
- * count can change. Multiple writers to the same block are synchronized
- * by the buffer lock.
- */
-
-#include "ext3.h"
-#include <linux/mbcache.h>
-#include <linux/quotaops.h>
-#include "xattr.h"
-#include "acl.h"
-
-#define BHDR(bh) ((struct ext3_xattr_header *)((bh)->b_data))
-#define ENTRY(ptr) ((struct ext3_xattr_entry *)(ptr))
-#define BFIRST(bh) ENTRY(BHDR(bh)+1)
-#define IS_LAST_ENTRY(entry) (*(__u32 *)(entry) == 0)
-
-#define IHDR(inode, raw_inode) \
-	((struct ext3_xattr_ibody_header *) \
-		((void *)raw_inode + \
-		 EXT3_GOOD_OLD_INODE_SIZE + \
-		 EXT3_I(inode)->i_extra_isize))
-#define IFIRST(hdr) ((struct ext3_xattr_entry *)((hdr)+1))
-
-#ifdef EXT3_XATTR_DEBUG
-# define ea_idebug(inode, f...) do { \
-		printk(KERN_DEBUG "inode %s:%lu: ", \
-			inode->i_sb->s_id, inode->i_ino); \
-		printk(f); \
-		printk("\n"); \
-	} while (0)
-# define ea_bdebug(bh, f...) do { \
-		char b[BDEVNAME_SIZE]; \
-		printk(KERN_DEBUG "block %s:%lu: ", \
-			bdevname(bh->b_bdev, b), \
-			(unsigned long) bh->b_blocknr); \
-		printk(f); \
-		printk("\n"); \
-	} while (0)
-#else
-# define ea_idebug(f...)
-# define ea_bdebug(f...)
-#endif
-
-static void ext3_xattr_cache_insert(struct buffer_head *);
-static struct buffer_head *ext3_xattr_cache_find(struct inode *,
-						 struct ext3_xattr_header *,
-						 struct mb_cache_entry **);
-static void ext3_xattr_rehash(struct ext3_xattr_header *,
-			      struct ext3_xattr_entry *);
-static int ext3_xattr_list(struct dentry *dentry, char *buffer,
-			   size_t buffer_size);
-
-static struct mb_cache *ext3_xattr_cache;
-
-static const struct xattr_handler *ext3_xattr_handler_map[] = {
-	[EXT3_XATTR_INDEX_USER]		     = &ext3_xattr_user_handler,
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
-	[EXT3_XATTR_INDEX_POSIX_ACL_ACCESS]  = &posix_acl_access_xattr_handler,
-	[EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT] = &posix_acl_default_xattr_handler,
-#endif
-	[EXT3_XATTR_INDEX_TRUSTED]	     = &ext3_xattr_trusted_handler,
-#ifdef CONFIG_EXT3_FS_SECURITY
-	[EXT3_XATTR_INDEX_SECURITY]	     = &ext3_xattr_security_handler,
-#endif
-};
-
-const struct xattr_handler *ext3_xattr_handlers[] = {
-	&ext3_xattr_user_handler,
-	&ext3_xattr_trusted_handler,
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
-	&posix_acl_access_xattr_handler,
-	&posix_acl_default_xattr_handler,
-#endif
-#ifdef CONFIG_EXT3_FS_SECURITY
-	&ext3_xattr_security_handler,
-#endif
-	NULL
-};
-
-static inline const struct xattr_handler *
-ext3_xattr_handler(int name_index)
-{
-	const struct xattr_handler *handler = NULL;
-
-	if (name_index > 0 && name_index < ARRAY_SIZE(ext3_xattr_handler_map))
-		handler = ext3_xattr_handler_map[name_index];
-	return handler;
-}
-
-/*
- * Inode operation listxattr()
- *
- * d_inode(dentry)->i_mutex: don't care
- */
-ssize_t
-ext3_listxattr(struct dentry *dentry, char *buffer, size_t size)
-{
-	return ext3_xattr_list(dentry, buffer, size);
-}
-
-static int
-ext3_xattr_check_names(struct ext3_xattr_entry *entry, void *end)
-{
-	while (!IS_LAST_ENTRY(entry)) {
-		struct ext3_xattr_entry *next = EXT3_XATTR_NEXT(entry);
-		if ((void *)next >= end)
-			return -EIO;
-		entry = next;
-	}
-	return 0;
-}
-
-static inline int
-ext3_xattr_check_block(struct buffer_head *bh)
-{
-	int error;
-
-	if (BHDR(bh)->h_magic != cpu_to_le32(EXT3_XATTR_MAGIC) ||
-	    BHDR(bh)->h_blocks != cpu_to_le32(1))
-		return -EIO;
-	error = ext3_xattr_check_names(BFIRST(bh), bh->b_data + bh->b_size);
-	return error;
-}
-
-static inline int
-ext3_xattr_check_entry(struct ext3_xattr_entry *entry, size_t size)
-{
-	size_t value_size = le32_to_cpu(entry->e_value_size);
-
-	if (entry->e_value_block != 0 || value_size > size ||
-	    le16_to_cpu(entry->e_value_offs) + value_size > size)
-		return -EIO;
-	return 0;
-}
-
-static int
-ext3_xattr_find_entry(struct ext3_xattr_entry **pentry, int name_index,
-		      const char *name, size_t size, int sorted)
-{
-	struct ext3_xattr_entry *entry;
-	size_t name_len;
-	int cmp = 1;
-
-	if (name == NULL)
-		return -EINVAL;
-	name_len = strlen(name);
-	entry = *pentry;
-	for (; !IS_LAST_ENTRY(entry); entry = EXT3_XATTR_NEXT(entry)) {
-		cmp = name_index - entry->e_name_index;
-		if (!cmp)
-			cmp = name_len - entry->e_name_len;
-		if (!cmp)
-			cmp = memcmp(name, entry->e_name, name_len);
-		if (cmp <= 0 && (sorted || cmp == 0))
-			break;
-	}
-	*pentry = entry;
-	if (!cmp && ext3_xattr_check_entry(entry, size))
-			return -EIO;
-	return cmp ? -ENODATA : 0;
-}
-
-static int
-ext3_xattr_block_get(struct inode *inode, int name_index, const char *name,
-		     void *buffer, size_t buffer_size)
-{
-	struct buffer_head *bh = NULL;
-	struct ext3_xattr_entry *entry;
-	size_t size;
-	int error;
-
-	ea_idebug(inode, "name=%d.%s, buffer=%p, buffer_size=%ld",
-		  name_index, name, buffer, (long)buffer_size);
-
-	error = -ENODATA;
-	if (!EXT3_I(inode)->i_file_acl)
-		goto cleanup;
-	ea_idebug(inode, "reading block %u", EXT3_I(inode)->i_file_acl);
-	bh = sb_bread(inode->i_sb, EXT3_I(inode)->i_file_acl);
-	if (!bh)
-		goto cleanup;
-	ea_bdebug(bh, "b_count=%d, refcount=%d",
-		atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount));
-	if (ext3_xattr_check_block(bh)) {
-bad_block:	ext3_error(inode->i_sb, __func__,
-			   "inode %lu: bad block "E3FSBLK, inode->i_ino,
-			   EXT3_I(inode)->i_file_acl);
-		error = -EIO;
-		goto cleanup;
-	}
-	ext3_xattr_cache_insert(bh);
-	entry = BFIRST(bh);
-	error = ext3_xattr_find_entry(&entry, name_index, name, bh->b_size, 1);
-	if (error == -EIO)
-		goto bad_block;
-	if (error)
-		goto cleanup;
-	size = le32_to_cpu(entry->e_value_size);
-	if (buffer) {
-		error = -ERANGE;
-		if (size > buffer_size)
-			goto cleanup;
-		memcpy(buffer, bh->b_data + le16_to_cpu(entry->e_value_offs),
-		       size);
-	}
-	error = size;
-
-cleanup:
-	brelse(bh);
-	return error;
-}
-
-static int
-ext3_xattr_ibody_get(struct inode *inode, int name_index, const char *name,
-		     void *buffer, size_t buffer_size)
-{
-	struct ext3_xattr_ibody_header *header;
-	struct ext3_xattr_entry *entry;
-	struct ext3_inode *raw_inode;
-	struct ext3_iloc iloc;
-	size_t size;
-	void *end;
-	int error;
-
-	if (!ext3_test_inode_state(inode, EXT3_STATE_XATTR))
-		return -ENODATA;
-	error = ext3_get_inode_loc(inode, &iloc);
-	if (error)
-		return error;
-	raw_inode = ext3_raw_inode(&iloc);
-	header = IHDR(inode, raw_inode);
-	entry = IFIRST(header);
-	end = (void *)raw_inode + EXT3_SB(inode->i_sb)->s_inode_size;
-	error = ext3_xattr_check_names(entry, end);
-	if (error)
-		goto cleanup;
-	error = ext3_xattr_find_entry(&entry, name_index, name,
-				      end - (void *)entry, 0);
-	if (error)
-		goto cleanup;
-	size = le32_to_cpu(entry->e_value_size);
-	if (buffer) {
-		error = -ERANGE;
-		if (size > buffer_size)
-			goto cleanup;
-		memcpy(buffer, (void *)IFIRST(header) +
-		       le16_to_cpu(entry->e_value_offs), size);
-	}
-	error = size;
-
-cleanup:
-	brelse(iloc.bh);
-	return error;
-}
-
-/*
- * ext3_xattr_get()
- *
- * Copy an extended attribute into the buffer
- * provided, or compute the buffer size required.
- * Buffer is NULL to compute the size of the buffer required.
- *
- * Returns a negative error number on failure, or the number of bytes
- * used / required on success.
- */
-int
-ext3_xattr_get(struct inode *inode, int name_index, const char *name,
-	       void *buffer, size_t buffer_size)
-{
-	int error;
-
-	down_read(&EXT3_I(inode)->xattr_sem);
-	error = ext3_xattr_ibody_get(inode, name_index, name, buffer,
-				     buffer_size);
-	if (error == -ENODATA)
-		error = ext3_xattr_block_get(inode, name_index, name, buffer,
-					     buffer_size);
-	up_read(&EXT3_I(inode)->xattr_sem);
-	return error;
-}
-
-static int
-ext3_xattr_list_entries(struct dentry *dentry, struct ext3_xattr_entry *entry,
-			char *buffer, size_t buffer_size)
-{
-	size_t rest = buffer_size;
-
-	for (; !IS_LAST_ENTRY(entry); entry = EXT3_XATTR_NEXT(entry)) {
-		const struct xattr_handler *handler =
-			ext3_xattr_handler(entry->e_name_index);
-
-		if (handler) {
-			size_t size = handler->list(dentry, buffer, rest,
-						    entry->e_name,
-						    entry->e_name_len,
-						    handler->flags);
-			if (buffer) {
-				if (size > rest)
-					return -ERANGE;
-				buffer += size;
-			}
-			rest -= size;
-		}
-	}
-	return buffer_size - rest;
-}
-
-static int
-ext3_xattr_block_list(struct dentry *dentry, char *buffer, size_t buffer_size)
-{
-	struct inode *inode = d_inode(dentry);
-	struct buffer_head *bh = NULL;
-	int error;
-
-	ea_idebug(inode, "buffer=%p, buffer_size=%ld",
-		  buffer, (long)buffer_size);
-
-	error = 0;
-	if (!EXT3_I(inode)->i_file_acl)
-		goto cleanup;
-	ea_idebug(inode, "reading block %u", EXT3_I(inode)->i_file_acl);
-	bh = sb_bread(inode->i_sb, EXT3_I(inode)->i_file_acl);
-	error = -EIO;
-	if (!bh)
-		goto cleanup;
-	ea_bdebug(bh, "b_count=%d, refcount=%d",
-		atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount));
-	if (ext3_xattr_check_block(bh)) {
-		ext3_error(inode->i_sb, __func__,
-			   "inode %lu: bad block "E3FSBLK, inode->i_ino,
-			   EXT3_I(inode)->i_file_acl);
-		error = -EIO;
-		goto cleanup;
-	}
-	ext3_xattr_cache_insert(bh);
-	error = ext3_xattr_list_entries(dentry, BFIRST(bh), buffer, buffer_size);
-
-cleanup:
-	brelse(bh);
-
-	return error;
-}
-
-static int
-ext3_xattr_ibody_list(struct dentry *dentry, char *buffer, size_t buffer_size)
-{
-	struct inode *inode = d_inode(dentry);
-	struct ext3_xattr_ibody_header *header;
-	struct ext3_inode *raw_inode;
-	struct ext3_iloc iloc;
-	void *end;
-	int error;
-
-	if (!ext3_test_inode_state(inode, EXT3_STATE_XATTR))
-		return 0;
-	error = ext3_get_inode_loc(inode, &iloc);
-	if (error)
-		return error;
-	raw_inode = ext3_raw_inode(&iloc);
-	header = IHDR(inode, raw_inode);
-	end = (void *)raw_inode + EXT3_SB(inode->i_sb)->s_inode_size;
-	error = ext3_xattr_check_names(IFIRST(header), end);
-	if (error)
-		goto cleanup;
-	error = ext3_xattr_list_entries(dentry, IFIRST(header),
-					buffer, buffer_size);
-
-cleanup:
-	brelse(iloc.bh);
-	return error;
-}
-
-/*
- * ext3_xattr_list()
- *
- * Copy a list of attribute names into the buffer
- * provided, or compute the buffer size required.
- * Buffer is NULL to compute the size of the buffer required.
- *
- * Returns a negative error number on failure, or the number of bytes
- * used / required on success.
- */
-static int
-ext3_xattr_list(struct dentry *dentry, char *buffer, size_t buffer_size)
-{
-	int i_error, b_error;
-
-	down_read(&EXT3_I(d_inode(dentry))->xattr_sem);
-	i_error = ext3_xattr_ibody_list(dentry, buffer, buffer_size);
-	if (i_error < 0) {
-		b_error = 0;
-	} else {
-		if (buffer) {
-			buffer += i_error;
-			buffer_size -= i_error;
-		}
-		b_error = ext3_xattr_block_list(dentry, buffer, buffer_size);
-		if (b_error < 0)
-			i_error = 0;
-	}
-	up_read(&EXT3_I(d_inode(dentry))->xattr_sem);
-	return i_error + b_error;
-}
-
-/*
- * If the EXT3_FEATURE_COMPAT_EXT_ATTR feature of this file system is
- * not set, set it.
- */
-static void ext3_xattr_update_super_block(handle_t *handle,
-					  struct super_block *sb)
-{
-	if (EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_EXT_ATTR))
-		return;
-
-	if (ext3_journal_get_write_access(handle, EXT3_SB(sb)->s_sbh) == 0) {
-		EXT3_SET_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_EXT_ATTR);
-		ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
-	}
-}
-
-/*
- * Release the xattr block BH: If the reference count is > 1, decrement
- * it; otherwise free the block.
- */
-static void
-ext3_xattr_release_block(handle_t *handle, struct inode *inode,
-			 struct buffer_head *bh)
-{
-	struct mb_cache_entry *ce = NULL;
-	int error = 0;
-
-	ce = mb_cache_entry_get(ext3_xattr_cache, bh->b_bdev, bh->b_blocknr);
-	error = ext3_journal_get_write_access(handle, bh);
-	if (error)
-		 goto out;
-
-	lock_buffer(bh);
-
-	if (BHDR(bh)->h_refcount == cpu_to_le32(1)) {
-		ea_bdebug(bh, "refcount now=0; freeing");
-		if (ce)
-			mb_cache_entry_free(ce);
-		ext3_free_blocks(handle, inode, bh->b_blocknr, 1);
-		get_bh(bh);
-		ext3_forget(handle, 1, inode, bh, bh->b_blocknr);
-	} else {
-		le32_add_cpu(&BHDR(bh)->h_refcount, -1);
-		error = ext3_journal_dirty_metadata(handle, bh);
-		if (IS_SYNC(inode))
-			handle->h_sync = 1;
-		dquot_free_block(inode, 1);
-		ea_bdebug(bh, "refcount now=%d; releasing",
-			  le32_to_cpu(BHDR(bh)->h_refcount));
-		if (ce)
-			mb_cache_entry_release(ce);
-	}
-	unlock_buffer(bh);
-out:
-	ext3_std_error(inode->i_sb, error);
-	return;
-}
-
-struct ext3_xattr_info {
-	int name_index;
-	const char *name;
-	const void *value;
-	size_t value_len;
-};
-
-struct ext3_xattr_search {
-	struct ext3_xattr_entry *first;
-	void *base;
-	void *end;
-	struct ext3_xattr_entry *here;
-	int not_found;
-};
-
-static int
-ext3_xattr_set_entry(struct ext3_xattr_info *i, struct ext3_xattr_search *s)
-{
-	struct ext3_xattr_entry *last;
-	size_t free, min_offs = s->end - s->base, name_len = strlen(i->name);
-
-	/* Compute min_offs and last. */
-	last = s->first;
-	for (; !IS_LAST_ENTRY(last); last = EXT3_XATTR_NEXT(last)) {
-		if (!last->e_value_block && last->e_value_size) {
-			size_t offs = le16_to_cpu(last->e_value_offs);
-			if (offs < min_offs)
-				min_offs = offs;
-		}
-	}
-	free = min_offs - ((void *)last - s->base) - sizeof(__u32);
-	if (!s->not_found) {
-		if (!s->here->e_value_block && s->here->e_value_size) {
-			size_t size = le32_to_cpu(s->here->e_value_size);
-			free += EXT3_XATTR_SIZE(size);
-		}
-		free += EXT3_XATTR_LEN(name_len);
-	}
-	if (i->value) {
-		if (free < EXT3_XATTR_LEN(name_len) +
-			   EXT3_XATTR_SIZE(i->value_len))
-			return -ENOSPC;
-	}
-
-	if (i->value && s->not_found) {
-		/* Insert the new name. */
-		size_t size = EXT3_XATTR_LEN(name_len);
-		size_t rest = (void *)last - (void *)s->here + sizeof(__u32);
-		memmove((void *)s->here + size, s->here, rest);
-		memset(s->here, 0, size);
-		s->here->e_name_index = i->name_index;
-		s->here->e_name_len = name_len;
-		memcpy(s->here->e_name, i->name, name_len);
-	} else {
-		if (!s->here->e_value_block && s->here->e_value_size) {
-			void *first_val = s->base + min_offs;
-			size_t offs = le16_to_cpu(s->here->e_value_offs);
-			void *val = s->base + offs;
-			size_t size = EXT3_XATTR_SIZE(
-				le32_to_cpu(s->here->e_value_size));
-
-			if (i->value && size == EXT3_XATTR_SIZE(i->value_len)) {
-				/* The old and the new value have the same
-				   size. Just replace. */
-				s->here->e_value_size =
-					cpu_to_le32(i->value_len);
-				memset(val + size - EXT3_XATTR_PAD, 0,
-				       EXT3_XATTR_PAD); /* Clear pad bytes. */
-				memcpy(val, i->value, i->value_len);
-				return 0;
-			}
-
-			/* Remove the old value. */
-			memmove(first_val + size, first_val, val - first_val);
-			memset(first_val, 0, size);
-			s->here->e_value_size = 0;
-			s->here->e_value_offs = 0;
-			min_offs += size;
-
-			/* Adjust all value offsets. */
-			last = s->first;
-			while (!IS_LAST_ENTRY(last)) {
-				size_t o = le16_to_cpu(last->e_value_offs);
-				if (!last->e_value_block &&
-				    last->e_value_size && o < offs)
-					last->e_value_offs =
-						cpu_to_le16(o + size);
-				last = EXT3_XATTR_NEXT(last);
-			}
-		}
-		if (!i->value) {
-			/* Remove the old name. */
-			size_t size = EXT3_XATTR_LEN(name_len);
-			last = ENTRY((void *)last - size);
-			memmove(s->here, (void *)s->here + size,
-				(void *)last - (void *)s->here + sizeof(__u32));
-			memset(last, 0, size);
-		}
-	}
-
-	if (i->value) {
-		/* Insert the new value. */
-		s->here->e_value_size = cpu_to_le32(i->value_len);
-		if (i->value_len) {
-			size_t size = EXT3_XATTR_SIZE(i->value_len);
-			void *val = s->base + min_offs - size;
-			s->here->e_value_offs = cpu_to_le16(min_offs - size);
-			memset(val + size - EXT3_XATTR_PAD, 0,
-			       EXT3_XATTR_PAD); /* Clear the pad bytes. */
-			memcpy(val, i->value, i->value_len);
-		}
-	}
-	return 0;
-}
-
-struct ext3_xattr_block_find {
-	struct ext3_xattr_search s;
-	struct buffer_head *bh;
-};
-
-static int
-ext3_xattr_block_find(struct inode *inode, struct ext3_xattr_info *i,
-		      struct ext3_xattr_block_find *bs)
-{
-	struct super_block *sb = inode->i_sb;
-	int error;
-
-	ea_idebug(inode, "name=%d.%s, value=%p, value_len=%ld",
-		  i->name_index, i->name, i->value, (long)i->value_len);
-
-	if (EXT3_I(inode)->i_file_acl) {
-		/* The inode already has an extended attribute block. */
-		bs->bh = sb_bread(sb, EXT3_I(inode)->i_file_acl);
-		error = -EIO;
-		if (!bs->bh)
-			goto cleanup;
-		ea_bdebug(bs->bh, "b_count=%d, refcount=%d",
-			atomic_read(&(bs->bh->b_count)),
-			le32_to_cpu(BHDR(bs->bh)->h_refcount));
-		if (ext3_xattr_check_block(bs->bh)) {
-			ext3_error(sb, __func__,
-				"inode %lu: bad block "E3FSBLK, inode->i_ino,
-				EXT3_I(inode)->i_file_acl);
-			error = -EIO;
-			goto cleanup;
-		}
-		/* Find the named attribute. */
-		bs->s.base = BHDR(bs->bh);
-		bs->s.first = BFIRST(bs->bh);
-		bs->s.end = bs->bh->b_data + bs->bh->b_size;
-		bs->s.here = bs->s.first;
-		error = ext3_xattr_find_entry(&bs->s.here, i->name_index,
-					      i->name, bs->bh->b_size, 1);
-		if (error && error != -ENODATA)
-			goto cleanup;
-		bs->s.not_found = error;
-	}
-	error = 0;
-
-cleanup:
-	return error;
-}
-
-static int
-ext3_xattr_block_set(handle_t *handle, struct inode *inode,
-		     struct ext3_xattr_info *i,
-		     struct ext3_xattr_block_find *bs)
-{
-	struct super_block *sb = inode->i_sb;
-	struct buffer_head *new_bh = NULL;
-	struct ext3_xattr_search *s = &bs->s;
-	struct mb_cache_entry *ce = NULL;
-	int error = 0;
-
-#define header(x) ((struct ext3_xattr_header *)(x))
-
-	if (i->value && i->value_len > sb->s_blocksize)
-		return -ENOSPC;
-	if (s->base) {
-		ce = mb_cache_entry_get(ext3_xattr_cache, bs->bh->b_bdev,
-					bs->bh->b_blocknr);
-		error = ext3_journal_get_write_access(handle, bs->bh);
-		if (error)
-			goto cleanup;
-		lock_buffer(bs->bh);
-
-		if (header(s->base)->h_refcount == cpu_to_le32(1)) {
-			if (ce) {
-				mb_cache_entry_free(ce);
-				ce = NULL;
-			}
-			ea_bdebug(bs->bh, "modifying in-place");
-			error = ext3_xattr_set_entry(i, s);
-			if (!error) {
-				if (!IS_LAST_ENTRY(s->first))
-					ext3_xattr_rehash(header(s->base),
-							  s->here);
-				ext3_xattr_cache_insert(bs->bh);
-			}
-			unlock_buffer(bs->bh);
-			if (error == -EIO)
-				goto bad_block;
-			if (!error)
-				error = ext3_journal_dirty_metadata(handle,
-								    bs->bh);
-			if (error)
-				goto cleanup;
-			goto inserted;
-		} else {
-			int offset = (char *)s->here - bs->bh->b_data;
-
-			unlock_buffer(bs->bh);
-			journal_release_buffer(handle, bs->bh);
-
-			if (ce) {
-				mb_cache_entry_release(ce);
-				ce = NULL;
-			}
-			ea_bdebug(bs->bh, "cloning");
-			s->base = kmalloc(bs->bh->b_size, GFP_NOFS);
-			error = -ENOMEM;
-			if (s->base == NULL)
-				goto cleanup;
-			memcpy(s->base, BHDR(bs->bh), bs->bh->b_size);
-			s->first = ENTRY(header(s->base)+1);
-			header(s->base)->h_refcount = cpu_to_le32(1);
-			s->here = ENTRY(s->base + offset);
-			s->end = s->base + bs->bh->b_size;
-		}
-	} else {
-		/* Allocate a buffer where we construct the new block. */
-		s->base = kzalloc(sb->s_blocksize, GFP_NOFS);
-		/* assert(header == s->base) */
-		error = -ENOMEM;
-		if (s->base == NULL)
-			goto cleanup;
-		header(s->base)->h_magic = cpu_to_le32(EXT3_XATTR_MAGIC);
-		header(s->base)->h_blocks = cpu_to_le32(1);
-		header(s->base)->h_refcount = cpu_to_le32(1);
-		s->first = ENTRY(header(s->base)+1);
-		s->here = ENTRY(header(s->base)+1);
-		s->end = s->base + sb->s_blocksize;
-	}
-
-	error = ext3_xattr_set_entry(i, s);
-	if (error == -EIO)
-		goto bad_block;
-	if (error)
-		goto cleanup;
-	if (!IS_LAST_ENTRY(s->first))
-		ext3_xattr_rehash(header(s->base), s->here);
-
-inserted:
-	if (!IS_LAST_ENTRY(s->first)) {
-		new_bh = ext3_xattr_cache_find(inode, header(s->base), &ce);
-		if (new_bh) {
-			/* We found an identical block in the cache. */
-			if (new_bh == bs->bh)
-				ea_bdebug(new_bh, "keeping");
-			else {
-				/* The old block is released after updating
-				   the inode. */
-				error = dquot_alloc_block(inode, 1);
-				if (error)
-					goto cleanup;
-				error = ext3_journal_get_write_access(handle,
-								      new_bh);
-				if (error)
-					goto cleanup_dquot;
-				lock_buffer(new_bh);
-				le32_add_cpu(&BHDR(new_bh)->h_refcount, 1);
-				ea_bdebug(new_bh, "reusing; refcount now=%d",
-					le32_to_cpu(BHDR(new_bh)->h_refcount));
-				unlock_buffer(new_bh);
-				error = ext3_journal_dirty_metadata(handle,
-								    new_bh);
-				if (error)
-					goto cleanup_dquot;
-			}
-			mb_cache_entry_release(ce);
-			ce = NULL;
-		} else if (bs->bh && s->base == bs->bh->b_data) {
-			/* We were modifying this block in-place. */
-			ea_bdebug(bs->bh, "keeping this block");
-			new_bh = bs->bh;
-			get_bh(new_bh);
-		} else {
-			/* We need to allocate a new block */
-			ext3_fsblk_t goal = ext3_group_first_block_no(sb,
-						EXT3_I(inode)->i_block_group);
-			ext3_fsblk_t block;
-
-			/*
-			 * Protect us agaist concurrent allocations to the
-			 * same inode from ext3_..._writepage(). Reservation
-			 * code does not expect racing allocations.
-			 */
-			mutex_lock(&EXT3_I(inode)->truncate_mutex);
-			block = ext3_new_block(handle, inode, goal, &error);
-			mutex_unlock(&EXT3_I(inode)->truncate_mutex);
-			if (error)
-				goto cleanup;
-			ea_idebug(inode, "creating block %d", block);
-
-			new_bh = sb_getblk(sb, block);
-			if (unlikely(!new_bh)) {
-getblk_failed:
-				ext3_free_blocks(handle, inode, block, 1);
-				error = -ENOMEM;
-				goto cleanup;
-			}
-			lock_buffer(new_bh);
-			error = ext3_journal_get_create_access(handle, new_bh);
-			if (error) {
-				unlock_buffer(new_bh);
-				goto getblk_failed;
-			}
-			memcpy(new_bh->b_data, s->base, new_bh->b_size);
-			set_buffer_uptodate(new_bh);
-			unlock_buffer(new_bh);
-			ext3_xattr_cache_insert(new_bh);
-			error = ext3_journal_dirty_metadata(handle, new_bh);
-			if (error)
-				goto cleanup;
-		}
-	}
-
-	/* Update the inode. */
-	EXT3_I(inode)->i_file_acl = new_bh ? new_bh->b_blocknr : 0;
-
-	/* Drop the previous xattr block. */
-	if (bs->bh && bs->bh != new_bh)
-		ext3_xattr_release_block(handle, inode, bs->bh);
-	error = 0;
-
-cleanup:
-	if (ce)
-		mb_cache_entry_release(ce);
-	brelse(new_bh);
-	if (!(bs->bh && s->base == bs->bh->b_data))
-		kfree(s->base);
-
-	return error;
-
-cleanup_dquot:
-	dquot_free_block(inode, 1);
-	goto cleanup;
-
-bad_block:
-	ext3_error(inode->i_sb, __func__,
-		   "inode %lu: bad block "E3FSBLK, inode->i_ino,
-		   EXT3_I(inode)->i_file_acl);
-	goto cleanup;
-
-#undef header
-}
-
-struct ext3_xattr_ibody_find {
-	struct ext3_xattr_search s;
-	struct ext3_iloc iloc;
-};
-
-static int
-ext3_xattr_ibody_find(struct inode *inode, struct ext3_xattr_info *i,
-		      struct ext3_xattr_ibody_find *is)
-{
-	struct ext3_xattr_ibody_header *header;
-	struct ext3_inode *raw_inode;
-	int error;
-
-	if (EXT3_I(inode)->i_extra_isize == 0)
-		return 0;
-	raw_inode = ext3_raw_inode(&is->iloc);
-	header = IHDR(inode, raw_inode);
-	is->s.base = is->s.first = IFIRST(header);
-	is->s.here = is->s.first;
-	is->s.end = (void *)raw_inode + EXT3_SB(inode->i_sb)->s_inode_size;
-	if (ext3_test_inode_state(inode, EXT3_STATE_XATTR)) {
-		error = ext3_xattr_check_names(IFIRST(header), is->s.end);
-		if (error)
-			return error;
-		/* Find the named attribute. */
-		error = ext3_xattr_find_entry(&is->s.here, i->name_index,
-					      i->name, is->s.end -
-					      (void *)is->s.base, 0);
-		if (error && error != -ENODATA)
-			return error;
-		is->s.not_found = error;
-	}
-	return 0;
-}
-
-static int
-ext3_xattr_ibody_set(handle_t *handle, struct inode *inode,
-		     struct ext3_xattr_info *i,
-		     struct ext3_xattr_ibody_find *is)
-{
-	struct ext3_xattr_ibody_header *header;
-	struct ext3_xattr_search *s = &is->s;
-	int error;
-
-	if (EXT3_I(inode)->i_extra_isize == 0)
-		return -ENOSPC;
-	error = ext3_xattr_set_entry(i, s);
-	if (error)
-		return error;
-	header = IHDR(inode, ext3_raw_inode(&is->iloc));
-	if (!IS_LAST_ENTRY(s->first)) {
-		header->h_magic = cpu_to_le32(EXT3_XATTR_MAGIC);
-		ext3_set_inode_state(inode, EXT3_STATE_XATTR);
-	} else {
-		header->h_magic = cpu_to_le32(0);
-		ext3_clear_inode_state(inode, EXT3_STATE_XATTR);
-	}
-	return 0;
-}
-
-/*
- * ext3_xattr_set_handle()
- *
- * Create, replace or remove an extended attribute for this inode.  Value
- * is NULL to remove an existing extended attribute, and non-NULL to
- * either replace an existing extended attribute, or create a new extended
- * attribute. The flags XATTR_REPLACE and XATTR_CREATE
- * specify that an extended attribute must exist and must not exist
- * previous to the call, respectively.
- *
- * Returns 0, or a negative error number on failure.
- */
-int
-ext3_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
-		      const char *name, const void *value, size_t value_len,
-		      int flags)
-{
-	struct ext3_xattr_info i = {
-		.name_index = name_index,
-		.name = name,
-		.value = value,
-		.value_len = value_len,
-
-	};
-	struct ext3_xattr_ibody_find is = {
-		.s = { .not_found = -ENODATA, },
-	};
-	struct ext3_xattr_block_find bs = {
-		.s = { .not_found = -ENODATA, },
-	};
-	int error;
-
-	if (!name)
-		return -EINVAL;
-	if (strlen(name) > 255)
-		return -ERANGE;
-	down_write(&EXT3_I(inode)->xattr_sem);
-	error = ext3_get_inode_loc(inode, &is.iloc);
-	if (error)
-		goto cleanup;
-
-	error = ext3_journal_get_write_access(handle, is.iloc.bh);
-	if (error)
-		goto cleanup;
-
-	if (ext3_test_inode_state(inode, EXT3_STATE_NEW)) {
-		struct ext3_inode *raw_inode = ext3_raw_inode(&is.iloc);
-		memset(raw_inode, 0, EXT3_SB(inode->i_sb)->s_inode_size);
-		ext3_clear_inode_state(inode, EXT3_STATE_NEW);
-	}
-
-	error = ext3_xattr_ibody_find(inode, &i, &is);
-	if (error)
-		goto cleanup;
-	if (is.s.not_found)
-		error = ext3_xattr_block_find(inode, &i, &bs);
-	if (error)
-		goto cleanup;
-	if (is.s.not_found && bs.s.not_found) {
-		error = -ENODATA;
-		if (flags & XATTR_REPLACE)
-			goto cleanup;
-		error = 0;
-		if (!value)
-			goto cleanup;
-	} else {
-		error = -EEXIST;
-		if (flags & XATTR_CREATE)
-			goto cleanup;
-	}
-	if (!value) {
-		if (!is.s.not_found)
-			error = ext3_xattr_ibody_set(handle, inode, &i, &is);
-		else if (!bs.s.not_found)
-			error = ext3_xattr_block_set(handle, inode, &i, &bs);
-	} else {
-		error = ext3_xattr_ibody_set(handle, inode, &i, &is);
-		if (!error && !bs.s.not_found) {
-			i.value = NULL;
-			error = ext3_xattr_block_set(handle, inode, &i, &bs);
-		} else if (error == -ENOSPC) {
-			if (EXT3_I(inode)->i_file_acl && !bs.s.base) {
-				error = ext3_xattr_block_find(inode, &i, &bs);
-				if (error)
-					goto cleanup;
-			}
-			error = ext3_xattr_block_set(handle, inode, &i, &bs);
-			if (error)
-				goto cleanup;
-			if (!is.s.not_found) {
-				i.value = NULL;
-				error = ext3_xattr_ibody_set(handle, inode, &i,
-							     &is);
-			}
-		}
-	}
-	if (!error) {
-		ext3_xattr_update_super_block(handle, inode->i_sb);
-		inode->i_ctime = CURRENT_TIME_SEC;
-		error = ext3_mark_iloc_dirty(handle, inode, &is.iloc);
-		/*
-		 * The bh is consumed by ext3_mark_iloc_dirty, even with
-		 * error != 0.
-		 */
-		is.iloc.bh = NULL;
-		if (IS_SYNC(inode))
-			handle->h_sync = 1;
-	}
-
-cleanup:
-	brelse(is.iloc.bh);
-	brelse(bs.bh);
-	up_write(&EXT3_I(inode)->xattr_sem);
-	return error;
-}
-
-/*
- * ext3_xattr_set()
- *
- * Like ext3_xattr_set_handle, but start from an inode. This extended
- * attribute modification is a filesystem transaction by itself.
- *
- * Returns 0, or a negative error number on failure.
- */
-int
-ext3_xattr_set(struct inode *inode, int name_index, const char *name,
-	       const void *value, size_t value_len, int flags)
-{
-	handle_t *handle;
-	int error, retries = 0;
-
-retry:
-	handle = ext3_journal_start(inode, EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
-	if (IS_ERR(handle)) {
-		error = PTR_ERR(handle);
-	} else {
-		int error2;
-
-		error = ext3_xattr_set_handle(handle, inode, name_index, name,
-					      value, value_len, flags);
-		error2 = ext3_journal_stop(handle);
-		if (error == -ENOSPC &&
-		    ext3_should_retry_alloc(inode->i_sb, &retries))
-			goto retry;
-		if (error == 0)
-			error = error2;
-	}
-
-	return error;
-}
-
-/*
- * ext3_xattr_delete_inode()
- *
- * Free extended attribute resources associated with this inode. This
- * is called immediately before an inode is freed. We have exclusive
- * access to the inode.
- */
-void
-ext3_xattr_delete_inode(handle_t *handle, struct inode *inode)
-{
-	struct buffer_head *bh = NULL;
-
-	if (!EXT3_I(inode)->i_file_acl)
-		goto cleanup;
-	bh = sb_bread(inode->i_sb, EXT3_I(inode)->i_file_acl);
-	if (!bh) {
-		ext3_error(inode->i_sb, __func__,
-			"inode %lu: block "E3FSBLK" read error", inode->i_ino,
-			EXT3_I(inode)->i_file_acl);
-		goto cleanup;
-	}
-	if (BHDR(bh)->h_magic != cpu_to_le32(EXT3_XATTR_MAGIC) ||
-	    BHDR(bh)->h_blocks != cpu_to_le32(1)) {
-		ext3_error(inode->i_sb, __func__,
-			"inode %lu: bad block "E3FSBLK, inode->i_ino,
-			EXT3_I(inode)->i_file_acl);
-		goto cleanup;
-	}
-	ext3_xattr_release_block(handle, inode, bh);
-	EXT3_I(inode)->i_file_acl = 0;
-
-cleanup:
-	brelse(bh);
-}
-
-/*
- * ext3_xattr_put_super()
- *
- * This is called when a file system is unmounted.
- */
-void
-ext3_xattr_put_super(struct super_block *sb)
-{
-	mb_cache_shrink(sb->s_bdev);
-}
-
-/*
- * ext3_xattr_cache_insert()
- *
- * Create a new entry in the extended attribute cache, and insert
- * it unless such an entry is already in the cache.
- *
- * Returns 0, or a negative error number on failure.
- */
-static void
-ext3_xattr_cache_insert(struct buffer_head *bh)
-{
-	__u32 hash = le32_to_cpu(BHDR(bh)->h_hash);
-	struct mb_cache_entry *ce;
-	int error;
-
-	ce = mb_cache_entry_alloc(ext3_xattr_cache, GFP_NOFS);
-	if (!ce) {
-		ea_bdebug(bh, "out of memory");
-		return;
-	}
-	error = mb_cache_entry_insert(ce, bh->b_bdev, bh->b_blocknr, hash);
-	if (error) {
-		mb_cache_entry_free(ce);
-		if (error == -EBUSY) {
-			ea_bdebug(bh, "already in cache");
-			error = 0;
-		}
-	} else {
-		ea_bdebug(bh, "inserting [%x]", (int)hash);
-		mb_cache_entry_release(ce);
-	}
-}
-
-/*
- * ext3_xattr_cmp()
- *
- * Compare two extended attribute blocks for equality.
- *
- * Returns 0 if the blocks are equal, 1 if they differ, and
- * a negative error number on errors.
- */
-static int
-ext3_xattr_cmp(struct ext3_xattr_header *header1,
-	       struct ext3_xattr_header *header2)
-{
-	struct ext3_xattr_entry *entry1, *entry2;
-
-	entry1 = ENTRY(header1+1);
-	entry2 = ENTRY(header2+1);
-	while (!IS_LAST_ENTRY(entry1)) {
-		if (IS_LAST_ENTRY(entry2))
-			return 1;
-		if (entry1->e_hash != entry2->e_hash ||
-		    entry1->e_name_index != entry2->e_name_index ||
-		    entry1->e_name_len != entry2->e_name_len ||
-		    entry1->e_value_size != entry2->e_value_size ||
-		    memcmp(entry1->e_name, entry2->e_name, entry1->e_name_len))
-			return 1;
-		if (entry1->e_value_block != 0 || entry2->e_value_block != 0)
-			return -EIO;
-		if (memcmp((char *)header1 + le16_to_cpu(entry1->e_value_offs),
-			   (char *)header2 + le16_to_cpu(entry2->e_value_offs),
-			   le32_to_cpu(entry1->e_value_size)))
-			return 1;
-
-		entry1 = EXT3_XATTR_NEXT(entry1);
-		entry2 = EXT3_XATTR_NEXT(entry2);
-	}
-	if (!IS_LAST_ENTRY(entry2))
-		return 1;
-	return 0;
-}
-
-/*
- * ext3_xattr_cache_find()
- *
- * Find an identical extended attribute block.
- *
- * Returns a pointer to the block found, or NULL if such a block was
- * not found or an error occurred.
- */
-static struct buffer_head *
-ext3_xattr_cache_find(struct inode *inode, struct ext3_xattr_header *header,
-		      struct mb_cache_entry **pce)
-{
-	__u32 hash = le32_to_cpu(header->h_hash);
-	struct mb_cache_entry *ce;
-
-	if (!header->h_hash)
-		return NULL;  /* never share */
-	ea_idebug(inode, "looking for cached blocks [%x]", (int)hash);
-again:
-	ce = mb_cache_entry_find_first(ext3_xattr_cache, inode->i_sb->s_bdev,
-				       hash);
-	while (ce) {
-		struct buffer_head *bh;
-
-		if (IS_ERR(ce)) {
-			if (PTR_ERR(ce) == -EAGAIN)
-				goto again;
-			break;
-		}
-		bh = sb_bread(inode->i_sb, ce->e_block);
-		if (!bh) {
-			ext3_error(inode->i_sb, __func__,
-				"inode %lu: block %lu read error",
-				inode->i_ino, (unsigned long) ce->e_block);
-		} else if (le32_to_cpu(BHDR(bh)->h_refcount) >=
-				EXT3_XATTR_REFCOUNT_MAX) {
-			ea_idebug(inode, "block %lu refcount %d>=%d",
-				  (unsigned long) ce->e_block,
-				  le32_to_cpu(BHDR(bh)->h_refcount),
-					  EXT3_XATTR_REFCOUNT_MAX);
-		} else if (ext3_xattr_cmp(header, BHDR(bh)) == 0) {
-			*pce = ce;
-			return bh;
-		}
-		brelse(bh);
-		ce = mb_cache_entry_find_next(ce, inode->i_sb->s_bdev, hash);
-	}
-	return NULL;
-}
-
-#define NAME_HASH_SHIFT 5
-#define VALUE_HASH_SHIFT 16
-
-/*
- * ext3_xattr_hash_entry()
- *
- * Compute the hash of an extended attribute.
- */
-static inline void ext3_xattr_hash_entry(struct ext3_xattr_header *header,
-					 struct ext3_xattr_entry *entry)
-{
-	__u32 hash = 0;
-	char *name = entry->e_name;
-	int n;
-
-	for (n=0; n < entry->e_name_len; n++) {
-		hash = (hash << NAME_HASH_SHIFT) ^
-		       (hash >> (8*sizeof(hash) - NAME_HASH_SHIFT)) ^
-		       *name++;
-	}
-
-	if (entry->e_value_block == 0 && entry->e_value_size != 0) {
-		__le32 *value = (__le32 *)((char *)header +
-			le16_to_cpu(entry->e_value_offs));
-		for (n = (le32_to_cpu(entry->e_value_size) +
-		     EXT3_XATTR_ROUND) >> EXT3_XATTR_PAD_BITS; n; n--) {
-			hash = (hash << VALUE_HASH_SHIFT) ^
-			       (hash >> (8*sizeof(hash) - VALUE_HASH_SHIFT)) ^
-			       le32_to_cpu(*value++);
-		}
-	}
-	entry->e_hash = cpu_to_le32(hash);
-}
-
-#undef NAME_HASH_SHIFT
-#undef VALUE_HASH_SHIFT
-
-#define BLOCK_HASH_SHIFT 16
-
-/*
- * ext3_xattr_rehash()
- *
- * Re-compute the extended attribute hash value after an entry has changed.
- */
-static void ext3_xattr_rehash(struct ext3_xattr_header *header,
-			      struct ext3_xattr_entry *entry)
-{
-	struct ext3_xattr_entry *here;
-	__u32 hash = 0;
-
-	ext3_xattr_hash_entry(header, entry);
-	here = ENTRY(header+1);
-	while (!IS_LAST_ENTRY(here)) {
-		if (!here->e_hash) {
-			/* Block is not shared if an entry's hash value == 0 */
-			hash = 0;
-			break;
-		}
-		hash = (hash << BLOCK_HASH_SHIFT) ^
-		       (hash >> (8*sizeof(hash) - BLOCK_HASH_SHIFT)) ^
-		       le32_to_cpu(here->e_hash);
-		here = EXT3_XATTR_NEXT(here);
-	}
-	header->h_hash = cpu_to_le32(hash);
-}
-
-#undef BLOCK_HASH_SHIFT
-
-int __init
-init_ext3_xattr(void)
-{
-	ext3_xattr_cache = mb_cache_create("ext3_xattr", 6);
-	if (!ext3_xattr_cache)
-		return -ENOMEM;
-	return 0;
-}
-
-void
-exit_ext3_xattr(void)
-{
-	if (ext3_xattr_cache)
-		mb_cache_destroy(ext3_xattr_cache);
-	ext3_xattr_cache = NULL;
-}
diff --git a/fs/ext3/xattr.h b/fs/ext3/xattr.h
deleted file mode 100644
index 32e93ebf8..000000000
--- a/fs/ext3/xattr.h
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
-  File: fs/ext3/xattr.h
-
-  On-disk format of extended attributes for the ext3 filesystem.
-
-  (C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
-*/
-
-#include <linux/xattr.h>
-
-/* Magic value in attribute blocks */
-#define EXT3_XATTR_MAGIC		0xEA020000
-
-/* Maximum number of references to one attribute block */
-#define EXT3_XATTR_REFCOUNT_MAX		1024
-
-/* Name indexes */
-#define EXT3_XATTR_INDEX_USER			1
-#define EXT3_XATTR_INDEX_POSIX_ACL_ACCESS	2
-#define EXT3_XATTR_INDEX_POSIX_ACL_DEFAULT	3
-#define EXT3_XATTR_INDEX_TRUSTED		4
-#define	EXT3_XATTR_INDEX_LUSTRE			5
-#define EXT3_XATTR_INDEX_SECURITY	        6
-
-struct ext3_xattr_header {
-	__le32	h_magic;	/* magic number for identification */
-	__le32	h_refcount;	/* reference count */
-	__le32	h_blocks;	/* number of disk blocks used */
-	__le32	h_hash;		/* hash value of all attributes */
-	__u32	h_reserved[4];	/* zero right now */
-};
-
-struct ext3_xattr_ibody_header {
-	__le32	h_magic;	/* magic number for identification */
-};
-
-struct ext3_xattr_entry {
-	__u8	e_name_len;	/* length of name */
-	__u8	e_name_index;	/* attribute name index */
-	__le16	e_value_offs;	/* offset in disk block of value */
-	__le32	e_value_block;	/* disk block attribute is stored on (n/i) */
-	__le32	e_value_size;	/* size of attribute value */
-	__le32	e_hash;		/* hash value of name and value */
-	char	e_name[0];	/* attribute name */
-};
-
-#define EXT3_XATTR_PAD_BITS		2
-#define EXT3_XATTR_PAD		(1<<EXT3_XATTR_PAD_BITS)
-#define EXT3_XATTR_ROUND		(EXT3_XATTR_PAD-1)
-#define EXT3_XATTR_LEN(name_len) \
-	(((name_len) + EXT3_XATTR_ROUND + \
-	sizeof(struct ext3_xattr_entry)) & ~EXT3_XATTR_ROUND)
-#define EXT3_XATTR_NEXT(entry) \
-	( (struct ext3_xattr_entry *)( \
-	  (char *)(entry) + EXT3_XATTR_LEN((entry)->e_name_len)) )
-#define EXT3_XATTR_SIZE(size) \
-	(((size) + EXT3_XATTR_ROUND) & ~EXT3_XATTR_ROUND)
-
-# ifdef CONFIG_EXT3_FS_XATTR
-
-extern const struct xattr_handler ext3_xattr_user_handler;
-extern const struct xattr_handler ext3_xattr_trusted_handler;
-extern const struct xattr_handler ext3_xattr_security_handler;
-
-extern ssize_t ext3_listxattr(struct dentry *, char *, size_t);
-
-extern int ext3_xattr_get(struct inode *, int, const char *, void *, size_t);
-extern int ext3_xattr_set(struct inode *, int, const char *, const void *, size_t, int);
-extern int ext3_xattr_set_handle(handle_t *, struct inode *, int, const char *, const void *, size_t, int);
-
-extern void ext3_xattr_delete_inode(handle_t *, struct inode *);
-extern void ext3_xattr_put_super(struct super_block *);
-
-extern int init_ext3_xattr(void);
-extern void exit_ext3_xattr(void);
-
-extern const struct xattr_handler *ext3_xattr_handlers[];
-
-# else  /* CONFIG_EXT3_FS_XATTR */
-
-static inline int
-ext3_xattr_get(struct inode *inode, int name_index, const char *name,
-	       void *buffer, size_t size, int flags)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline int
-ext3_xattr_set(struct inode *inode, int name_index, const char *name,
-	       const void *value, size_t size, int flags)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline int
-ext3_xattr_set_handle(handle_t *handle, struct inode *inode, int name_index,
-	       const char *name, const void *value, size_t size, int flags)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline void
-ext3_xattr_delete_inode(handle_t *handle, struct inode *inode)
-{
-}
-
-static inline void
-ext3_xattr_put_super(struct super_block *sb)
-{
-}
-
-static inline int
-init_ext3_xattr(void)
-{
-	return 0;
-}
-
-static inline void
-exit_ext3_xattr(void)
-{
-}
-
-#define ext3_xattr_handlers	NULL
-
-# endif  /* CONFIG_EXT3_FS_XATTR */
-
-#ifdef CONFIG_EXT3_FS_SECURITY
-extern int ext3_init_security(handle_t *handle, struct inode *inode,
-			      struct inode *dir, const struct qstr *qstr);
-#else
-static inline int ext3_init_security(handle_t *handle, struct inode *inode,
-				     struct inode *dir, const struct qstr *qstr)
-{
-	return 0;
-}
-#endif
diff --git a/fs/ext3/xattr_security.c b/fs/ext3/xattr_security.c
deleted file mode 100644
index c9506d5e3..000000000
--- a/fs/ext3/xattr_security.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * linux/fs/ext3/xattr_security.c
- * Handler for storing security labels as extended attributes.
- */
-
-#include <linux/security.h>
-#include "ext3.h"
-#include "xattr.h"
-
-static size_t
-ext3_xattr_security_list(struct dentry *dentry, char *list, size_t list_size,
-			 const char *name, size_t name_len, int type)
-{
-	const size_t prefix_len = XATTR_SECURITY_PREFIX_LEN;
-	const size_t total_len = prefix_len + name_len + 1;
-
-
-	if (list && total_len <= list_size) {
-		memcpy(list, XATTR_SECURITY_PREFIX, prefix_len);
-		memcpy(list+prefix_len, name, name_len);
-		list[prefix_len + name_len] = '\0';
-	}
-	return total_len;
-}
-
-static int
-ext3_xattr_security_get(struct dentry *dentry, const char *name,
-		void *buffer, size_t size, int type)
-{
-	if (strcmp(name, "") == 0)
-		return -EINVAL;
-	return ext3_xattr_get(d_inode(dentry), EXT3_XATTR_INDEX_SECURITY,
-			      name, buffer, size);
-}
-
-static int
-ext3_xattr_security_set(struct dentry *dentry, const char *name,
-		const void *value, size_t size, int flags, int type)
-{
-	if (strcmp(name, "") == 0)
-		return -EINVAL;
-	return ext3_xattr_set(d_inode(dentry), EXT3_XATTR_INDEX_SECURITY,
-			      name, value, size, flags);
-}
-
-static int ext3_initxattrs(struct inode *inode,
-			   const struct xattr *xattr_array,
-			   void *fs_info)
-{
-	const struct xattr *xattr;
-	handle_t *handle = fs_info;
-	int err = 0;
-
-	for (xattr = xattr_array; xattr->name != NULL; xattr++) {
-		err = ext3_xattr_set_handle(handle, inode,
-					    EXT3_XATTR_INDEX_SECURITY,
-					    xattr->name, xattr->value,
-					    xattr->value_len, 0);
-		if (err < 0)
-			break;
-	}
-	return err;
-}
-
-int
-ext3_init_security(handle_t *handle, struct inode *inode, struct inode *dir,
-		   const struct qstr *qstr)
-{
-	return security_inode_init_security(inode, dir, qstr,
-					    &ext3_initxattrs, handle);
-}
-
-const struct xattr_handler ext3_xattr_security_handler = {
-	.prefix	= XATTR_SECURITY_PREFIX,
-	.list	= ext3_xattr_security_list,
-	.get	= ext3_xattr_security_get,
-	.set	= ext3_xattr_security_set,
-};
diff --git a/fs/ext3/xattr_trusted.c b/fs/ext3/xattr_trusted.c
deleted file mode 100644
index 206cc66dc..000000000
--- a/fs/ext3/xattr_trusted.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * linux/fs/ext3/xattr_trusted.c
- * Handler for trusted extended attributes.
- *
- * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
- */
-
-#include "ext3.h"
-#include "xattr.h"
-
-static size_t
-ext3_xattr_trusted_list(struct dentry *dentry, char *list, size_t list_size,
-		const char *name, size_t name_len, int type)
-{
-	const size_t prefix_len = XATTR_TRUSTED_PREFIX_LEN;
-	const size_t total_len = prefix_len + name_len + 1;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return 0;
-
-	if (list && total_len <= list_size) {
-		memcpy(list, XATTR_TRUSTED_PREFIX, prefix_len);
-		memcpy(list+prefix_len, name, name_len);
-		list[prefix_len + name_len] = '\0';
-	}
-	return total_len;
-}
-
-static int
-ext3_xattr_trusted_get(struct dentry *dentry, const char *name,
-		       void *buffer, size_t size, int type)
-{
-	if (strcmp(name, "") == 0)
-		return -EINVAL;
-	return ext3_xattr_get(d_inode(dentry), EXT3_XATTR_INDEX_TRUSTED,
-			      name, buffer, size);
-}
-
-static int
-ext3_xattr_trusted_set(struct dentry *dentry, const char *name,
-		const void *value, size_t size, int flags, int type)
-{
-	if (strcmp(name, "") == 0)
-		return -EINVAL;
-	return ext3_xattr_set(d_inode(dentry), EXT3_XATTR_INDEX_TRUSTED, name,
-			      value, size, flags);
-}
-
-const struct xattr_handler ext3_xattr_trusted_handler = {
-	.prefix	= XATTR_TRUSTED_PREFIX,
-	.list	= ext3_xattr_trusted_list,
-	.get	= ext3_xattr_trusted_get,
-	.set	= ext3_xattr_trusted_set,
-};
diff --git a/fs/ext3/xattr_user.c b/fs/ext3/xattr_user.c
deleted file mode 100644
index 021508ad1..000000000
--- a/fs/ext3/xattr_user.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * linux/fs/ext3/xattr_user.c
- * Handler for extended user attributes.
- *
- * Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
- */
-
-#include "ext3.h"
-#include "xattr.h"
-
-static size_t
-ext3_xattr_user_list(struct dentry *dentry, char *list, size_t list_size,
-		const char *name, size_t name_len, int type)
-{
-	const size_t prefix_len = XATTR_USER_PREFIX_LEN;
-	const size_t total_len = prefix_len + name_len + 1;
-
-	if (!test_opt(dentry->d_sb, XATTR_USER))
-		return 0;
-
-	if (list && total_len <= list_size) {
-		memcpy(list, XATTR_USER_PREFIX, prefix_len);
-		memcpy(list+prefix_len, name, name_len);
-		list[prefix_len + name_len] = '\0';
-	}
-	return total_len;
-}
-
-static int
-ext3_xattr_user_get(struct dentry *dentry, const char *name, void *buffer,
-		size_t size, int type)
-{
-	if (strcmp(name, "") == 0)
-		return -EINVAL;
-	if (!test_opt(dentry->d_sb, XATTR_USER))
-		return -EOPNOTSUPP;
-	return ext3_xattr_get(d_inode(dentry), EXT3_XATTR_INDEX_USER,
-			      name, buffer, size);
-}
-
-static int
-ext3_xattr_user_set(struct dentry *dentry, const char *name,
-		const void *value, size_t size, int flags, int type)
-{
-	if (strcmp(name, "") == 0)
-		return -EINVAL;
-	if (!test_opt(dentry->d_sb, XATTR_USER))
-		return -EOPNOTSUPP;
-	return ext3_xattr_set(d_inode(dentry), EXT3_XATTR_INDEX_USER,
-			      name, value, size, flags);
-}
-
-const struct xattr_handler ext3_xattr_user_handler = {
-	.prefix	= XATTR_USER_PREFIX,
-	.list	= ext3_xattr_user_list,
-	.get	= ext3_xattr_user_get,
-	.set	= ext3_xattr_user_set,
-};