From: Darrick J. Wong <darrick.wong@oracle.com>
Date: Thu, 10 Aug 2017 21:20:29 +0000 (-0700)
Subject: xfs: don't leak quotacheck dquots when cow recovery
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=77aff8c76425c8f49b50d0b9009915066739e7d2;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

xfs: don't leak quotacheck dquots when cow recovery

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>
Reviewed-by: Brian Foster <bfoster@redhat.com>
---

diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 151a82db0945..ea7d4b4e50d0 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1024,6 +1024,8 @@ xfs_mountfs(
 	IRELE(rip);
 	cancel_delayed_work_sync(&mp->m_reclaim_work);
 	xfs_reclaim_inodes(mp, SYNC_WAIT);
+	/* Clean out dquots that might be in memory after quotacheck. */
+	xfs_qm_unmount(mp);
  out_log_dealloc:
 	mp->m_flags |= XFS_MOUNT_UNMOUNTING;
 	xfs_log_mount_cancel(mp);