593 			struct blk_flush_queue *fq = blk_get_flush_queue(q, NULL);  in __blk_drain_queue()  local
598 				if (fq)  in __blk_drain_queue()
599 				    drain |= !list_empty(&fq->flush_queue[i]);  in __blk_drain_queue()
1174 	q->fq = blk_alloc_flush_queue(q, NUMA_NO_NODE, q->cmd_size, GFP_KERNEL);  in blk_init_allocated_queue()
1175 	if (!q->fq)  in blk_init_allocated_queue()
1178 	if (q->init_rq_fn && q->init_rq_fn(q, q->fq->flush_rq, GFP_KERNEL))  in blk_init_allocated_queue()
1200 		q->exit_rq_fn(q, q->fq->flush_rq);  in blk_init_allocated_queue()
1202 	blk_free_flush_queue(q->fq);  in blk_init_allocated_queue()
1203 	q->fq = NULL;  in blk_init_allocated_queue()
2823 	struct blk_flush_queue *fq = blk_get_flush_queue(q, NULL);  in elv_next_request()  local
2851 		if (fq->flush_pending_idx != fq->flush_running_idx &&  in elv_next_request()
2853 			fq->flush_queue_delayed = 1;  in elv_next_request()