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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /fs/f2fs/dir.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'fs/f2fs/dir.c')
-rw-r--r--fs/f2fs/dir.c38
1 files changed, 25 insertions, 13 deletions
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 7c1678ba8..faa7495e2 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -172,8 +172,6 @@ static struct f2fs_dir_entry *find_in_level(struct inode *dir,
namehash = f2fs_dentry_hash(&name);
- f2fs_bug_on(F2FS_I_SB(dir), level > MAX_DIR_HASH_DEPTH);
-
nbucket = dir_buckets(level, F2FS_I(dir)->i_dir_level);
nblock = bucket_blocks(level);
@@ -238,6 +236,14 @@ struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
goto out;
max_depth = F2FS_I(dir)->i_current_depth;
+ if (unlikely(max_depth > MAX_DIR_HASH_DEPTH)) {
+ f2fs_msg(F2FS_I_SB(dir)->sb, KERN_WARNING,
+ "Corrupted max_depth of %lu: %u",
+ dir->i_ino, max_depth);
+ max_depth = MAX_DIR_HASH_DEPTH;
+ F2FS_I(dir)->i_current_depth = max_depth;
+ mark_inode_dirty(dir);
+ }
for (level = 0; level < max_depth; level++) {
de = find_in_level(dir, level, &fname, res_page);
@@ -444,7 +450,7 @@ error:
/* once the failed inode becomes a bad inode, i_mode is S_IFREG */
truncate_inode_pages(&inode->i_data, 0);
truncate_blocks(inode, 0, false);
- remove_dirty_dir_inode(inode);
+ remove_dirty_inode(inode);
remove_inode_page(inode);
return ERR_PTR(err);
}
@@ -630,6 +636,7 @@ fail:
f2fs_put_page(dentry_page, 1);
out:
f2fs_fname_free_filename(&fname);
+ f2fs_update_time(F2FS_I_SB(dir), REQ_TIME);
return err;
}
@@ -651,6 +658,7 @@ int f2fs_do_tmpfile(struct inode *inode, struct inode *dir)
clear_inode_flag(F2FS_I(inode), FI_NEW_INODE);
fail:
up_write(&F2FS_I(inode)->i_sem);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
return err;
}
@@ -695,6 +703,8 @@ void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
int slots = GET_DENTRY_SLOTS(le16_to_cpu(dentry->name_len));
int i;
+ f2fs_update_time(F2FS_I_SB(dir), REQ_TIME);
+
if (f2fs_has_inline_dentry(dir))
return f2fs_delete_inline_entry(dentry, page, dir, inode);
@@ -855,25 +865,27 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx)
for (; n < npages; n++) {
dentry_page = get_lock_data_page(inode, n, false);
- if (IS_ERR(dentry_page))
- continue;
+ if (IS_ERR(dentry_page)) {
+ err = PTR_ERR(dentry_page);
+ if (err == -ENOENT)
+ continue;
+ else
+ goto out;
+ }
dentry_blk = kmap(dentry_page);
make_dentry_ptr(inode, &d, (void *)dentry_blk, 1);
- if (f2fs_fill_dentries(ctx, &d, n * NR_DENTRY_IN_BLOCK, &fstr))
- goto stop;
+ if (f2fs_fill_dentries(ctx, &d, n * NR_DENTRY_IN_BLOCK, &fstr)) {
+ kunmap(dentry_page);
+ f2fs_put_page(dentry_page, 1);
+ break;
+ }
ctx->pos = (n + 1) * NR_DENTRY_IN_BLOCK;
kunmap(dentry_page);
f2fs_put_page(dentry_page, 1);
- dentry_page = NULL;
- }
-stop:
- if (dentry_page && !IS_ERR(dentry_page)) {
- kunmap(dentry_page);
- f2fs_put_page(dentry_page, 1);
}
out:
f2fs_fname_crypto_free_buffer(&fstr);