703 	struct blk_plug *plug;  in submit_bio_noacct()  local
707 	plug = blk_mq_plug(bio);  in submit_bio_noacct()
708 	if (plug && plug->nowait)  in submit_bio_noacct()
858 	blk_flush_plug(current->plug, false);  in bio_poll()
1035 void blk_start_plug_nr_ios(struct blk_plug *plug, unsigned short nr_ios)  in blk_start_plug_nr_ios()  argument
1042 	if (tsk->plug)  in blk_start_plug_nr_ios()
1045 	plug->mq_list = NULL;  in blk_start_plug_nr_ios()
1046 	plug->cached_rq = NULL;  in blk_start_plug_nr_ios()
1047 	plug->nr_ios = min_t(unsigned short, nr_ios, BLK_MAX_REQUEST_COUNT);  in blk_start_plug_nr_ios()
1048 	plug->rq_count = 0;  in blk_start_plug_nr_ios()
1049 	plug->multiple_queues = false;  in blk_start_plug_nr_ios()
1050 	plug->has_elevator = false;  in blk_start_plug_nr_ios()
1051 	plug->nowait = false;  in blk_start_plug_nr_ios()
1052 	INIT_LIST_HEAD(&plug->cb_list);  in blk_start_plug_nr_ios()
1058 	tsk->plug = plug;  in blk_start_plug_nr_ios()
1084 void blk_start_plug(struct blk_plug *plug)  in blk_start_plug()  argument
1086 	blk_start_plug_nr_ios(plug, 1);  in blk_start_plug()
1090 static void flush_plug_callbacks(struct blk_plug *plug, bool from_schedule)  in flush_plug_callbacks()  argument
1094 	while (!list_empty(&plug->cb_list)) {  in flush_plug_callbacks()
1095 		list_splice_init(&plug->cb_list, &callbacks);  in flush_plug_callbacks()
1110 	struct blk_plug *plug = current->plug;  in blk_check_plugged()  local
1113 	if (!plug)  in blk_check_plugged()
1116 	list_for_each_entry(cb, &plug->cb_list, list)  in blk_check_plugged()
1126 		list_add(&cb->list, &plug->cb_list);  in blk_check_plugged()
1132 void __blk_flush_plug(struct blk_plug *plug, bool from_schedule)  in __blk_flush_plug()  argument
1134 	if (!list_empty(&plug->cb_list))  in __blk_flush_plug()
1135 		flush_plug_callbacks(plug, from_schedule);  in __blk_flush_plug()
1136 	if (!rq_list_empty(plug->mq_list))  in __blk_flush_plug()
1137 		blk_mq_flush_plug_list(plug, from_schedule);  in __blk_flush_plug()
1144 	if (unlikely(!rq_list_empty(plug->cached_rq)))  in __blk_flush_plug()
1145 		blk_mq_free_plug_rqs(plug);  in __blk_flush_plug()
1158 void blk_finish_plug(struct blk_plug *plug)  in blk_finish_plug()  argument
1160 	if (plug == current->plug) {  in blk_finish_plug()
1161 		__blk_flush_plug(plug, false);  in blk_finish_plug()
1162 		current->plug = NULL;  in blk_finish_plug()