RepoMirrors/btrfs-progs
1
0
Fork 0
mirror of https://github.com/kdave/btrfs-progs synced 2025-01-13 17:21:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

btrfs-progs: check: lowmem: Remove corupted link before readding correct link

Browse Source 
For repair_ternary_lowmem() used in lowmem mode, if it found 1 of
DIR_INDEX/DIR_ITEM/INODE_REF missing, it will try to insert correct
link.

However for case like invalid type in DIR_INDEX, we should delete the
corrupted DIR_INDEX first before inserting the correct link.

This patch will remove the corrupted link before re-inserting.
This should solve the duplicated DIR_INDEX problem in old lowmem mode
repair.

Reported-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Su Yue <suy.fnst@cn.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2018-01-17 13:17:08 +08:00 committed by David Sterba
parent f7fc27cb20
commit a5f0e46ac3
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
check/mode-lowmem.c
View File

@ -635,6 +635,10 @@ int repair_ternary_lowmem(struct btrfs_root *root, u64 dir_ino, u64 ino,
goto out;
}
if (stage == 1) {
ret = btrfs_unlink(trans, root, ino, dir_ino, index, name,
name_len, 0);
if (ret)
goto out;
ret = btrfs_add_link(trans, root, ino, dir_ino, name, name_len,
filetype, &index, 1, 1);
goto out;