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xfs: repair superblocks

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If one of the backup superblocks is found to differ seriously from
superblock 0, write out a fresh copy from the in-core sb.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong
2018-05-29 22:18:12 -07:00
parent 7e85bc6c87
commit d25522f10c
6 changed files with 99 additions and 1 deletions
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fs/xfs/scrub/scrub.c
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@@ -216,7 +216,7 @@ static const struct xfs_scrub_meta_ops meta_scrub_ops[] = {
.type = ST_PERAG,
.setup = xfs_scrub_setup_fs,
.scrub = xfs_scrub_superblock,
.repair = xfs_repair_notsupported,
.repair = xfs_repair_superblock,
},
[XFS_SCRUB_TYPE_AGF] = { /* agf */
.type = ST_PERAG,