1724 		plug_list = &plug->list;  in blk_attempt_plug_merge()
1778 		plug_list = &plug->list;  in blk_plug_queued_count()
1910 		if (!request_count || list_empty(&plug->list))  in blk_queue_bio()
1913 			struct request *last = list_entry_rq(plug->list.prev);  in blk_queue_bio()
1920 		list_add_tail(&req->queuelist, &plug->list);  in blk_queue_bio()
3276 	INIT_LIST_HEAD(&plug->list);  in blk_start_plug()
3327 							  list);  in flush_plug_callbacks()
3328 			list_del(&cb->list);  in flush_plug_callbacks()
3343 	list_for_each_entry(cb, &plug->cb_list, list)  in blk_check_plugged()
3353 		list_add(&cb->list, &plug->cb_list);  in blk_check_plugged()
3364 	LIST_HEAD(list);  in blk_flush_plug_list()
3372 	if (list_empty(&plug->list))  in blk_flush_plug_list()
3375 	list_splice_init(&plug->list, &list);  in blk_flush_plug_list()
3377 	list_sort(NULL, &list, plug_rq_cmp);  in blk_flush_plug_list()
3387 	while (!list_empty(&list)) {  in blk_flush_plug_list()
3388 		rq = list_entry_rq(list.next);  in blk_flush_plug_list()