Linux-libre 4.7.1-gnupck-4.7.1-gnu

9 files changed, 46 insertions, 53 deletions

diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index 27695e6f4..42f1d1814 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -172,9 +172,6 @@ ext2_get_acl(struct inode *inode, int type)
 		acl = ERR_PTR(retval);
 	kfree(value);
 
-	if (!IS_ERR(acl))
-		set_cached_acl(inode, type, acl);
-
 	return acl;
 }
 
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 7ff6fcfa6..19efd1197 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -110,7 +110,7 @@ static int ext2_commit_chunk(struct page *page, loff_t pos, unsigned len)
 	return err;
 }
 
-static void ext2_check_page(struct page *page, int quiet)
+static bool ext2_check_page(struct page *page, int quiet)
 {
 	struct inode *dir = page->mapping->host;
 	struct super_block *sb = dir->i_sb;
@@ -148,7 +148,7 @@ static void ext2_check_page(struct page *page, int quiet)
 		goto Eend;
 out:
 	SetPageChecked(page);
-	return;
+	return true;
 
 	/* Too bad, we had an error */
 
@@ -190,8 +190,8 @@ Eend:
 			(unsigned long) le32_to_cpu(p->inode));
 	}
 fail:
-	SetPageChecked(page);
 	SetPageError(page);
+	return false;
 }
 
 static struct page * ext2_get_page(struct inode *dir, unsigned long n,
@@ -201,10 +201,10 @@ static struct page * ext2_get_page(struct inode *dir, unsigned long n,
 	struct page *page = read_mapping_page(mapping, n, NULL);
 	if (!IS_ERR(page)) {
 		kmap(page);
-		if (!PageChecked(page))
-			ext2_check_page(page, quiet);
-		if (PageError(page))
-			goto fail;
+		if (unlikely(!PageChecked(page))) {
+			if (PageError(page) || !ext2_check_page(page, quiet))
+				goto fail;
+		}
 	}
 	return page;
 
@@ -716,7 +716,7 @@ not_empty:
 const struct file_operations ext2_dir_operations = {
 	.llseek		= generic_file_llseek,
 	.read		= generic_read_dir,
-	.iterate	= ext2_readdir,
+	.iterate_shared	= ext2_readdir,
 	.unlocked_ioctl = ext2_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl	= ext2_compat_ioctl,
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index c1400b109..868c02317 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -51,7 +51,7 @@ static int ext2_dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	}
 	down_read(&ei->dax_sem);
 
-	ret = __dax_fault(vma, vmf, ext2_get_block, NULL);
+	ret = __dax_fault(vma, vmf, ext2_get_block);
 
 	up_read(&ei->dax_sem);
 	if (vmf->flags & FAULT_FLAG_WRITE)
@@ -72,7 +72,7 @@ static int ext2_dax_pmd_fault(struct vm_area_struct *vma, unsigned long addr,
 	}
 	down_read(&ei->dax_sem);
 
-	ret = __dax_pmd_fault(vma, addr, pmd, flags, ext2_get_block, NULL);
+	ret = __dax_pmd_fault(vma, addr, pmd, flags, ext2_get_block);
 
 	up_read(&ei->dax_sem);
 	if (flags & FAULT_FLAG_WRITE)
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 6bd58e6ff..fcbe58641 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -26,6 +26,7 @@
 #include <linux/highuid.h>
 #include <linux/pagemap.h>
 #include <linux/dax.h>
+#include <linux/blkdev.h>
 #include <linux/quotaops.h>
 #include <linux/writeback.h>
 #include <linux/buffer_head.h>
@@ -737,19 +738,18 @@ static int ext2_get_blocks(struct inode *inode,
 		 * so that it's not found by another thread before it's
 		 * initialised
 		 */
-		err = dax_clear_sectors(inode->i_sb->s_bdev,
-				le32_to_cpu(chain[depth-1].key) <<
-				(inode->i_blkbits - 9),
-				1 << inode->i_blkbits);
+		err = sb_issue_zeroout(inode->i_sb,
+				le32_to_cpu(chain[depth-1].key), count,
+				GFP_NOFS);
 		if (err) {
 			mutex_unlock(&ei->truncate_mutex);
 			goto cleanup;
 		}
-	}
+	} else
+		set_buffer_new(bh_result);
 
 	ext2_splice_branch(inode, iblock, partial, indirect_blks, count);
 	mutex_unlock(&ei->truncate_mutex);
-	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)
@@ -854,20 +854,20 @@ static sector_t ext2_bmap(struct address_space *mapping, sector_t block)
 }
 
 static ssize_t
-ext2_direct_IO(struct kiocb *iocb, struct iov_iter *iter, loff_t offset)
+ext2_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 {
 	struct file *file = iocb->ki_filp;
 	struct address_space *mapping = file->f_mapping;
 	struct inode *inode = mapping->host;
 	size_t count = iov_iter_count(iter);
+	loff_t offset = iocb->ki_pos;
 	ssize_t ret;
 
 	if (IS_DAX(inode))
-		ret = dax_do_io(iocb, inode, iter, offset, ext2_get_block, NULL,
+		ret = dax_do_io(iocb, inode, iter, ext2_get_block, NULL,
 				DIO_LOCKING);
 	else
-		ret = blockdev_direct_IO(iocb, inode, iter, offset,
-					 ext2_get_block);
+		ret = blockdev_direct_IO(iocb, inode, iter, ext2_get_block);
 	if (ret < 0 && iov_iter_rw(iter) == WRITE)
 		ext2_write_failed(mapping, offset + count);
 	return ret;
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index d34843925..d44620312 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -82,7 +82,7 @@ struct dentry *ext2_get_parent(struct dentry *child)
 	unsigned long ino = ext2_inode_by_name(d_inode(child), &dotdot);
 	if (!ino)
 		return ERR_PTR(-ENOENT);
-	return d_obtain_alias(ext2_iget(d_inode(child)->i_sb, ino));
+	return d_obtain_alias(ext2_iget(child->d_sb, ino));
 } 
 
 /*
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index b78caf25f..1d9379568 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -922,16 +922,9 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	blocksize = BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);
 
 	if (sbi->s_mount_opt & EXT2_MOUNT_DAX) {
-		if (blocksize != PAGE_SIZE) {
-			ext2_msg(sb, KERN_ERR,
-					"error: unsupported blocksize for dax");
+		err = bdev_dax_supported(sb, blocksize);
+		if (err)
 			goto failed_mount;
-		}
-		if (!sb->s_bdev->bd_disk->fops->direct_access) {
-			ext2_msg(sb, KERN_ERR,
-					"error: device does not support dax");
-			goto failed_mount;
-		}
 	}
 
 	/* If the blocksize doesn't match, re-read the thing.. */
diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c
index ba97f243b..7b9e9c184 100644
--- a/fs/ext2/xattr_security.c
+++ b/fs/ext2/xattr_security.c
@@ -9,19 +9,20 @@
 
 static int
 ext2_xattr_security_get(const struct xattr_handler *handler,
-			struct dentry *dentry, const char *name,
-			void *buffer, size_t size)
+			struct dentry *unused, struct inode *inode,
+			const char *name, void *buffer, size_t size)
 {
-	return ext2_xattr_get(d_inode(dentry), EXT2_XATTR_INDEX_SECURITY, name,
+	return ext2_xattr_get(inode, EXT2_XATTR_INDEX_SECURITY, name,
 			      buffer, size);
 }
 
 static int
 ext2_xattr_security_set(const struct xattr_handler *handler,
-			struct dentry *dentry, const char *name,
-			const void *value, size_t size, int flags)
+			struct dentry *unused, struct inode *inode,
+			const char *name, const void *value,
+			size_t size, int flags)
 {
-	return ext2_xattr_set(d_inode(dentry), EXT2_XATTR_INDEX_SECURITY, name,
+	return ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, name,
 			      value, size, flags);
 }
 
diff --git a/fs/ext2/xattr_trusted.c b/fs/ext2/xattr_trusted.c
index 2c94d1930..65049b71a 100644
--- a/fs/ext2/xattr_trusted.c
+++ b/fs/ext2/xattr_trusted.c
@@ -16,19 +16,20 @@ ext2_xattr_trusted_list(struct dentry *dentry)
 
 static int
 ext2_xattr_trusted_get(const struct xattr_handler *handler,
-		       struct dentry *dentry, const char *name,
-		       void *buffer, size_t size)
+		       struct dentry *unused, struct inode *inode,
+		       const char *name, void *buffer, size_t size)
 {
-	return ext2_xattr_get(d_inode(dentry), EXT2_XATTR_INDEX_TRUSTED, name,
+	return ext2_xattr_get(inode, EXT2_XATTR_INDEX_TRUSTED, name,
 			      buffer, size);
 }
 
 static int
 ext2_xattr_trusted_set(const struct xattr_handler *handler,
-		       struct dentry *dentry, const char *name,
-		       const void *value, size_t size, int flags)
+		       struct dentry *unused, struct inode *inode,
+		       const char *name, const void *value,
+		       size_t size, int flags)
 {
-	return ext2_xattr_set(d_inode(dentry), EXT2_XATTR_INDEX_TRUSTED, name,
+	return ext2_xattr_set(inode, EXT2_XATTR_INDEX_TRUSTED, name,
 			      value, size, flags);
 }
 
diff --git a/fs/ext2/xattr_user.c b/fs/ext2/xattr_user.c
index 72a2a96d6..fb2f992ae 100644
--- a/fs/ext2/xattr_user.c
+++ b/fs/ext2/xattr_user.c
@@ -18,24 +18,25 @@ ext2_xattr_user_list(struct dentry *dentry)
 
 static int
 ext2_xattr_user_get(const struct xattr_handler *handler,
-		    struct dentry *dentry, const char *name,
-		    void *buffer, size_t size)
+		    struct dentry *unused, struct inode *inode,
+		    const char *name, void *buffer, size_t size)
 {
-	if (!test_opt(dentry->d_sb, XATTR_USER))
+	if (!test_opt(inode->i_sb, XATTR_USER))
 		return -EOPNOTSUPP;
-	return ext2_xattr_get(d_inode(dentry), EXT2_XATTR_INDEX_USER,
+	return ext2_xattr_get(inode, EXT2_XATTR_INDEX_USER,
 			      name, buffer, size);
 }
 
 static int
 ext2_xattr_user_set(const struct xattr_handler *handler,
-		    struct dentry *dentry, const char *name,
-		    const void *value, size_t size, int flags)
+		    struct dentry *unused, struct inode *inode,
+		    const char *name, const void *value,
+		    size_t size, int flags)
 {
-	if (!test_opt(dentry->d_sb, XATTR_USER))
+	if (!test_opt(inode->i_sb, XATTR_USER))
 		return -EOPNOTSUPP;
 
-	return ext2_xattr_set(d_inode(dentry), EXT2_XATTR_INDEX_USER,
+	return ext2_xattr_set(inode, EXT2_XATTR_INDEX_USER,
 			      name, value, size, flags);
 }