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xfs: recalculate summary counters at mount time if icount is bad 

Since the sb write verifier trips on bad icounts, we should also force a
mount time recalculation of the summary counters if the icount is bad.
This helps us avoid blowing up at freeze/unmount time when the bad
counter gets written back out.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
This commit is contained in:
Darrick J. Wong 2018-08-10 17:55:56 -07:00
parent 01239d77b9
commit 00d22a1c36
1 changed files with 1 additions and 0 deletions
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1
fs/xfs/xfs_mount.c
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@ -637,6 +637,7 @@ xfs_check_summary_counts(
*/
if (XFS_LAST_UNMOUNT_WAS_CLEAN(mp) &&
(mp->m_sb.sb_fdblocks > mp->m_sb.sb_dblocks ||
!xfs_verify_icount(mp, mp->m_sb.sb_icount) ||
mp->m_sb.sb_ifree > mp->m_sb.sb_icount))
mp->m_flags |= XFS_MOUNT_BAD_SUMMARY;