[1/5] xfs: always rescan allegedly healthy per-ag metadata after repair

Commit Message

Darrick J. Wong Jan. 1, 2020, 1:02 a.m. UTC

From: Darrick J. Wong <[e-mail]>

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 <[e-mail]>
---
 fs/xfs/scrub/health.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

Patch

diff --git a/fs/xfs/scrub/health.c b/fs/xfs/scrub/health.c
index 83d27cdf579b..8cff49b3ef60 100644
--- a/fs/xfs/scrub/health.c
+++ b/fs/xfs/scrub/health.c
@@ -221,6 +221,16 @@  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;