xfs: make sure to really flush all dquots in xfs_qm_quotacheck

Make sure we do not skip any dquots when flushing them out after a
quotacheck to make sure that we will never have any dirty dquots on a
live filesystem.  At this point no dquot should be pinnable, but lets
be pedantic about it.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NDave Chinner <dchinner@redhat.com>
Signed-off-by: NBen Myers <bpm@sgi.com>

fs/xfs/xfs_qm.c

@@ -1661,7 +1661,7 @@ xfs_qm_quotacheck(
 	 * successfully.
 	 */
 	if (!error)
-		error = xfs_qm_dqflush_all(mp, SYNC_TRYLOCK);
+		error = xfs_qm_dqflush_all(mp, 0);
 
 	/*
 	 * We can get this error if we couldn't do a dquot allocation inside