695 	struct blk_plug *plug;  in blk_attempt_plug_merge()  local
699 	plug = blk_mq_plug(q, bio);  in blk_attempt_plug_merge()
700 	if (!plug)  in blk_attempt_plug_merge()
703 	plug_list = &plug->mq_list;  in blk_attempt_plug_merge()
1696 void blk_start_plug(struct blk_plug *plug)  in blk_start_plug()  argument
1703 	if (tsk->plug)  in blk_start_plug()
1706 	INIT_LIST_HEAD(&plug->mq_list);  in blk_start_plug()
1707 	INIT_LIST_HEAD(&plug->cb_list);  in blk_start_plug()
1708 	plug->rq_count = 0;  in blk_start_plug()
1709 	plug->multiple_queues = false;  in blk_start_plug()
1715 	tsk->plug = plug;  in blk_start_plug()
1719 static void flush_plug_callbacks(struct blk_plug *plug, bool from_schedule)  in flush_plug_callbacks()  argument
1723 	while (!list_empty(&plug->cb_list)) {  in flush_plug_callbacks()
1724 		list_splice_init(&plug->cb_list, &callbacks);  in flush_plug_callbacks()
1739 	struct blk_plug *plug = current->plug;  in blk_check_plugged()  local
1742 	if (!plug)  in blk_check_plugged()
1745 	list_for_each_entry(cb, &plug->cb_list, list)  in blk_check_plugged()
1755 		list_add(&cb->list, &plug->cb_list);  in blk_check_plugged()
1761 void blk_flush_plug_list(struct blk_plug *plug, bool from_schedule)  in blk_flush_plug_list()  argument
1763 	flush_plug_callbacks(plug, from_schedule);  in blk_flush_plug_list()
1765 	if (!list_empty(&plug->mq_list))  in blk_flush_plug_list()
1766 		blk_mq_flush_plug_list(plug, from_schedule);  in blk_flush_plug_list()
1779 void blk_finish_plug(struct blk_plug *plug)  in blk_finish_plug()  argument
1781 	if (plug != current->plug)  in blk_finish_plug()
1783 	blk_flush_plug_list(plug, false);  in blk_finish_plug()
1785 	current->plug = NULL;  in blk_finish_plug()