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authorDarrick J. Wong <darrick.wong@oracle.com>2018-01-08 10:49:02 -0800
committerDarrick J. Wong <darrick.wong@oracle.com>2018-01-08 10:49:02 -0800
commite5b37faa932d79f0c277badd0566317718648ffc (patch)
treed84b3ae48a4f02741d3112c174ba91606fd6708e /fs/xfs/scrub/agheader.c
parent5a0f433745ead12f485da2213fa0c473ed613a45 (diff)
downloadlinux-e5b37faa932d79f0c277badd0566317718648ffc.tar.bz2
xfs: catch a few more error codes when scrubbing secondary sb
The superblock validation routines return a variety of error codes to reject a mount request. For scrub we can assume that the mount succeeded, so if we see these things appear when scrubbing secondary sb X, we can treat them all like corruption. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs/xfs/scrub/agheader.c')
-rw-r--r--fs/xfs/scrub/agheader.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/xfs/scrub/agheader.c b/fs/xfs/scrub/agheader.c
index b599358c3796..97beb4773298 100644
--- a/fs/xfs/scrub/agheader.c
+++ b/fs/xfs/scrub/agheader.c
@@ -126,6 +126,22 @@ xfs_scrub_superblock(
error = xfs_trans_read_buf(mp, sc->tp, mp->m_ddev_targp,
XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
XFS_FSS_TO_BB(mp, 1), 0, &bp, &xfs_sb_buf_ops);
+ /*
+ * The superblock verifier can return several different error codes
+ * if it thinks the superblock doesn't look right. For a mount these
+ * would all get bounced back to userspace, but if we're here then the
+ * fs mounted successfully, which means that this secondary superblock
+ * is simply incorrect. Treat all these codes the same way we treat
+ * any corruption.
+ */
+ switch (error) {
+ case -EINVAL: /* also -EWRONGFS */
+ case -ENOSYS:
+ case -EFBIG:
+ error = -EFSCORRUPTED;
+ default:
+ break;
+ }
if (!xfs_scrub_process_error(sc, agno, XFS_SB_BLOCK(mp), &error))
return error;