Merge branch 'xfs-misc-fixes-for-4.5-3' into for-next

	LIST_HEAD(dispose);

	int loop = 0;

	/*

	 * We need to flush the buffer workqueue to ensure that all IO

	 * completion processing is 100% done. Just waiting on buffer locks is

	 * not sufficient for async IO as the reference count held over IO is

	 * not released until after the buffer lock is dropped. Hence we need to

	 * ensure here that all reference counts have been dropped before we

	 * start walking the LRU list.

	 */

	drain_workqueue(btp->bt_mount->m_buf_workqueue);

	/* loop until there is nothing left on the lru list. */

	while (list_lru_count(&btp->bt_lru)) {

		list_lru_walk(&btp->bt_lru, xfs_buftarg_wait_rele,

	long		tout = 0;	/* milliseconds */

	current->flags |= PF_MEMALLOC;

	set_freezable();

	while (!kthread_should_stop()) {

		if (tout && tout <= 20)