diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2019-04-25 18:26:24 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-04-30 08:19:13 -0700 |
| commit | 75efa57d0bf5fcf650a183f0ce0dc011ba8c4bc8 (patch) | |
| tree | d6dfd62d2680be7cdb73e61e857e833f12ae0a78 /fs/xfs/scrub/common.c | |
| parent | 94079285756d66b1aded4e36d35452cb1f9c953a (diff) | |
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 <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'fs/xfs/scrub/common.c')
| -rw-r--r-- | fs/xfs/scrub/common.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c index 7d7e91a7bb86..973aa59975e3 100644 --- a/fs/xfs/scrub/common.c +++ b/fs/xfs/scrub/common.c @@ -209,6 +209,15 @@ xchk_ino_set_preen( trace_xchk_ino_preen(sc, ino, __return_address); } +/* Record something being wrong with the filesystem primary superblock. */ +void +xchk_set_corrupt( + struct xfs_scrub *sc) +{ + sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT; + trace_xchk_fs_error(sc, 0, __return_address); +} + /* Record a corrupt block. */ void xchk_block_set_corrupt( |