From 75efa57d0bf5fcf650a183f0ce0dc011ba8c4bc8 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Thu, 25 Apr 2019 18:26:24 -0700 Subject: xfs: add online scrub for superblock counters Teach online scrub how to check the filesystem summary counters. We use the incore delalloc block counter along with the incore AG headers to compute expected values for fdblocks, icount, and ifree, and then check that the percpu counter is within a certain threshold of the expected value. This is done to avoid having to freeze or otherwise lock the filesystem, which means that we're only checking that the counters are fairly close, not that they're exactly correct. Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner Reviewed-by: Brian Foster --- fs/xfs/scrub/health.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/xfs/scrub/health.c') diff --git a/fs/xfs/scrub/health.c b/fs/xfs/scrub/health.c index 16b536aa125e..23cf8e2f25db 100644 --- a/fs/xfs/scrub/health.c +++ b/fs/xfs/scrub/health.c @@ -109,6 +109,7 @@ static const struct xchk_health_map type_to_health_flag[XFS_SCRUB_TYPE_NR] = { [XFS_SCRUB_TYPE_UQUOTA] = { XHG_FS, XFS_SICK_FS_UQUOTA }, [XFS_SCRUB_TYPE_GQUOTA] = { XHG_FS, XFS_SICK_FS_GQUOTA }, [XFS_SCRUB_TYPE_PQUOTA] = { XHG_FS, XFS_SICK_FS_PQUOTA }, + [XFS_SCRUB_TYPE_FSCOUNTERS] = { XHG_FS, XFS_SICK_FS_COUNTERS }, }; /* Return the health status mask for this scrub type. */ -- cgit v1.2.3