[PATCH 1/2] xfs: always rescan allegedly healthy per-ag metadata after repair

Darrick J. Wong
2023-07-27T22:29:02Z

After an online repair function runs for a per-AG metadata structure,
sc->sick_mask is supposed to reflect the per-AG metadata that the repair
function fixed. Our next move is to re-check the metadata to assess
the completeness of our repair, so we don't want the rebuilt structure
to be excluded from the rescan just because the health system previously
logged a problem with the data structure.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/scrub/health.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/fs/xfs/scrub/health.c b/fs/xfs/scrub/health.c
index d2b2a1cb6533d..5e2b09ed6e29a 100644
--- a/fs/xfs/scrub/health.c
+++ b/fs/xfs/scrub/health.c
@@ -226,6 +226,16 @@ xchk_ag_btree_healthy_enough(
return true;
}

+ /*
+ * If we just repaired some AG metadata, sc->sick_mask will reflect all
+ * the per-AG metadata types that were repaired. Exclude these from
+ * the filesystem health query because we have not yet updated the
+ * health status and we want everything to be scanned.
+ */
+ if ((sc->flags & XREP_ALREADY_FIXED) &&
+ type_to_health_flag[sc->sm->sm_type].group == XHG_AG)
+ mask &= ~sc->sick_mask;
+
if (xfs_ag_has_sickness(pag, mask)) {
sc->sm->sm_flags |= XFS_SCRUB_OFLAG_XFAIL;
return false;