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authorDarrick J. Wong <darrick.wong@oracle.com>2020-03-11 10:37:57 -0700
committerDarrick J. Wong <darrick.wong@oracle.com>2020-03-12 07:58:13 -0700
commit2e107cf869eecc770e3f630060bb4e5f547d0fd8 (patch)
tree19c8185b4085b62004e86ba2060701ef38417ca0 /fs/xfs
parentxfs: check owner of dir3 blocks (diff)
downloadwireguard-linux-2e107cf869eecc770e3f630060bb4e5f547d0fd8.tar.xz
wireguard-linux-2e107cf869eecc770e3f630060bb4e5f547d0fd8.zip
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>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/scrub/dir.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/xfs/scrub/dir.c b/fs/xfs/scrub/dir.c
index 266da4e4bde6..ef7cc8e101ab 100644
--- a/fs/xfs/scrub/dir.c
+++ b/fs/xfs/scrub/dir.c
@@ -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;