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

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>
alistair/sensors
Darrick J. Wong 2020-03-11 10:37:57 -07:00
parent 1b2c1a63b6
commit 2e107cf869
1 changed files with 3 additions and 0 deletions
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3
fs/xfs/scrub/dir.c
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@ -155,6 +155,9 @@ 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;