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authorDarrick J. Wong <djwong@kernel.org>2021-04-23 16:02:01 -0700
committerDarrick J. Wong <djwong@kernel.org>2021-04-29 07:44:18 -0700
commite6c01077ec2d28fe8b6e0bc79eddea8d788f6ea3 (patch)
tree70eedeffa079bdab8e6281addcd74a0534dc13fe /fs
parent1aec7c3d05670b92b7339b19999009a93808efb9 (diff)
downloadlinux-e6c01077ec2d28fe8b6e0bc79eddea8d788f6ea3.tar.bz2
xfs: don't check agf_btreeblks on pre-lazysbcount filesystems
The AGF free space btree block counter wasn't added until the lazysbcount feature was added to XFS midway through the life of the V4 format, so ignore the field when checking. Online AGF repair requires rmapbt, so it doesn't need the feature check. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/xfs/scrub/agheader.c7
-rw-r--r--fs/xfs/scrub/fscounters.c3
2 files changed, 8 insertions, 2 deletions
diff --git a/fs/xfs/scrub/agheader.c b/fs/xfs/scrub/agheader.c
index 749faa17f8e2..7a2f9b5f2db5 100644
--- a/fs/xfs/scrub/agheader.c
+++ b/fs/xfs/scrub/agheader.c
@@ -416,6 +416,10 @@ xchk_agf_xref_btreeblks(
xfs_agblock_t btreeblks;
int error;
+ /* agf_btreeblks didn't exist before lazysbcount */
+ if (!xfs_sb_version_haslazysbcount(&sc->mp->m_sb))
+ return;
+
/* Check agf_rmap_blocks; set up for agf_btreeblks check */
if (sc->sa.rmap_cur) {
error = xfs_btree_count_blocks(sc->sa.rmap_cur, &blocks);
@@ -581,7 +585,8 @@ xchk_agf(
xchk_block_set_corrupt(sc, sc->sa.agf_bp);
if (pag->pagf_flcount != be32_to_cpu(agf->agf_flcount))
xchk_block_set_corrupt(sc, sc->sa.agf_bp);
- if (pag->pagf_btreeblks != be32_to_cpu(agf->agf_btreeblks))
+ if (xfs_sb_version_haslazysbcount(&sc->mp->m_sb) &&
+ pag->pagf_btreeblks != be32_to_cpu(agf->agf_btreeblks))
xchk_block_set_corrupt(sc, sc->sa.agf_bp);
xfs_perag_put(pag);
diff --git a/fs/xfs/scrub/fscounters.c b/fs/xfs/scrub/fscounters.c
index 7b4386c78fbf..318b81c0f90d 100644
--- a/fs/xfs/scrub/fscounters.c
+++ b/fs/xfs/scrub/fscounters.c
@@ -182,7 +182,8 @@ retry:
/* Add up the free/freelist/bnobt/cntbt blocks */
fsc->fdblocks += pag->pagf_freeblks;
fsc->fdblocks += pag->pagf_flcount;
- fsc->fdblocks += pag->pagf_btreeblks;
+ if (xfs_sb_version_haslazysbcount(&sc->mp->m_sb))
+ fsc->fdblocks += pag->pagf_btreeblks;
/*
* Per-AG reservations are taken out of the incore counters,