[PATCH 3/3] xfs: don't leak quotacheck dquots when cow recovery fails

["Darrick J. Wong" <darrick.wong@oracle.com>]

If we fail a mount on account of cow recovery errors, it's possible that
a previous quotacheck left some dquots in memory.  The bailout clause of
xfs_mountfs forgets to purge these, and so we leak them.  Fix that.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 fs/xfs/xfs_mount.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index d463ab3..8a12118 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1029,6 +1029,8 @@ xfs_mountfs(
  out_agresv:
 	xfs_fs_unreserve_ag_blocks(mp);
  out_quota:
+	/* Clean out dquots that might be in memory after quotacheck. */
+	xfs_qm_unmount(mp);
 	xfs_qm_unmount_quotas(mp);
  out_rtunmount:
 	xfs_rtunmount_inodes(mp);