Commit 00d22a1c authored Aug 10, 2018 by Darrick J. Wong

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>

parent 01239d77

fs/xfs/xfs_mount.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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;