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| author | Al Viro <viro@ZenIV.linux.org.uk> | 2013-07-01 08:12:38 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-21 18:14:40 -0700 |
| commit | 791750989d8eba46434f2c0b02154ace47be6c8e (patch) | |
| tree | b717025d4ff66e336b62ddf68d5751be55997dd2 | |
| parent | 23643c00e5d692fa53fc7630931e6694b02f27ef (diff) | |
| download | kernel_samsung_tuna-791750989d8eba46434f2c0b02154ace47be6c8e.zip kernel_samsung_tuna-791750989d8eba46434f2c0b02154ace47be6c8e.tar.gz kernel_samsung_tuna-791750989d8eba46434f2c0b02154ace47be6c8e.tar.bz2 | |
ext3,ext4: don't mess with dir_file->f_pos in htree_dirblock_to_tree()
commit 64cb927371cd2ec43758d8a094a003d27bc3d0dc upstream.
Both ext3 and ext4 htree_dirblock_to_tree() is just filling the
in-core rbtree for use by call_filldir(). All updates of ->f_pos are
done by the latter; bumping it here (on error) is obviously wrong - we
might very well have it nowhere near the block we'd found an error in.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/ext3/namei.c | 7 | ||||
| -rw-r--r-- | fs/ext4/namei.c | 7 |
2 files changed, 4 insertions, 10 deletions
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c index e5a7111..8c9f82d 100644 --- a/fs/ext3/namei.c +++ b/fs/ext3/namei.c @@ -584,11 +584,8 @@ static int htree_dirblock_to_tree(struct file *dir_file, 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))) { - /* On error, skip the f_pos to the next block. */ - dir_file->f_pos = (dir_file->f_pos | - (dir->i_sb->s_blocksize - 1)) + 1; - brelse (bh); - return count; + /* silently ignore the rest of the block */ + break; } ext3fs_dirhash(de->name, de->name_len, hinfo); if ((hinfo->hash < start_hash) || diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 78585fc..8d3716f 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -585,11 +585,8 @@ static int htree_dirblock_to_tree(struct file *dir_file, if (ext4_check_dir_entry(dir, NULL, de, bh, (block<<EXT4_BLOCK_SIZE_BITS(dir->i_sb)) + ((char *)de - bh->b_data))) { - /* On error, skip the f_pos to the next block. */ - dir_file->f_pos = (dir_file->f_pos | - (dir->i_sb->s_blocksize - 1)) + 1; - brelse(bh); - return count; + /* silently ignore the rest of the block */ + break; } ext4fs_dirhash(de->name, de->name_len, hinfo); if ((hinfo->hash < start_hash) || |