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xfs: mark dir corrupt when lookup-by-hash fails

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[ Upstream commit 2e107cf869eecc770e3f630060bb4e5f547d0fd8 ]

In xchk_dir_actor, we attempt to validate the directory hash structures
by performing a directory entry lookup by (hashed) name.  If the lookup
returns ENOENT, that means that the hash information is corrupt.  The
_process_error functions don't catch this, so we have to add that
explicitly.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Darrick J. Wong 2020-03-11 10:37:57 -07:00 committed by Greg Kroah-Hartman
parent 6ab959f129
commit 7fff3f7fe9
1 changed files with 3 additions and 0 deletions
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3
fs/xfs/scrub/dir.c
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@ -156,6 +156,9 @@ xchk_dir_actor(
xname.type = XFS_DIR3_FT_UNKNOWN;
error = xfs_dir_lookup(sdc->sc->tp, ip, &xname, &lookup_ino, NULL);
/* ENOENT means the hash lookup failed and the dir is corrupt */
if (error == -ENOENT)
error = -EFSCORRUPTED;
if (!xchk_fblock_process_error(sdc->sc, XFS_DATA_FORK, offset,
&error))
goto out;