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| author | Darrick J. Wong <djwong@kernel.org> | 2023-04-11 19:00:16 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2023-04-11 19:00:16 -0700 |
| commit | 9dceccc5822f2ecea12a89f24d7cad1f3e5eab7c (patch) | |
| tree | 9ed1442fa8c784c0c092592ed5ecdaa50bc6bad0 /fs/xfs | |
| parent | 30f8ee5e7e0ccce396dff209c6cbce49d0d7e167 (diff) | |
| download | linux-9dceccc5822f2ecea12a89f24d7cad1f3e5eab7c.tar.gz linux-9dceccc5822f2ecea12a89f24d7cad1f3e5eab7c.tar.bz2 linux-9dceccc5822f2ecea12a89f24d7cad1f3e5eab7c.zip | |
xfs: use the directory name hash function for dir scrubbing
The directory code has a directory-specific hash computation function
that includes a modified hash function for case-insensitive lookups.
Hence we must use that function (and not the raw da_hashname) when
checking the dabtree structure.
Found by accidentally breaking xfs/188 to create an abnormally huge
case-insensitive directory and watching scrub break.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/scrub/dir.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/xfs/scrub/dir.c b/fs/xfs/scrub/dir.c index b6081a3e1b91..1b1830576dcd 100644 --- a/fs/xfs/scrub/dir.c +++ b/fs/xfs/scrub/dir.c @@ -201,6 +201,7 @@ xchk_dir_rec( struct xchk_da_btree *ds, int level) { + struct xfs_name dname = { }; struct xfs_da_state_blk *blk = &ds->state->path.blk[level]; struct xfs_mount *mp = ds->state->mp; struct xfs_inode *dp = ds->dargs.dp; @@ -297,7 +298,11 @@ xchk_dir_rec( xchk_fblock_set_corrupt(ds->sc, XFS_DATA_FORK, rec_bno); goto out_relse; } - calc_hash = xfs_da_hashname(dent->name, dent->namelen); + + /* Does the directory hash match? */ + dname.name = dent->name; + dname.len = dent->namelen; + calc_hash = xfs_dir2_hashname(mp, &dname); if (calc_hash != hash) xchk_fblock_set_corrupt(ds->sc, XFS_DATA_FORK, rec_bno); |