640 	if (hctx_idx >= q->nr_hw_queues)  in blk_mq_alloc_request_hctx()
1215 	if (rq->q->nr_hw_queues == 1) {  in blk_mq_complete_request_remote()
2173 	if (hctx->queue->nr_hw_queues == 1)  in blk_mq_hctx_next_cpu()
3018 	    (hctx->dispatch_busy && (q->nr_hw_queues == 1 || !is_sync))) {  in blk_mq_submit_bio()
3751 				   unsigned int nr_hw_queues)  in blk_mq_init_cpu_queues()  argument
3774 			if (nr_hw_queues > 1 && hctx->numa_node == NUMA_NO_NODE)  in blk_mq_init_cpu_queues()
4192 	for (i = 0; i < set->nr_hw_queues; i++) {  in blk_mq_realloc_hw_ctxs()
4215 	if (i != set->nr_hw_queues) {  in blk_mq_realloc_hw_ctxs()
4216 		j = q->nr_hw_queues;  in blk_mq_realloc_hw_ctxs()
4219 		q->nr_hw_queues = set->nr_hw_queues;  in blk_mq_realloc_hw_ctxs()
4256 	if (!q->nr_hw_queues)  in blk_mq_init_allocated_queue()
4274 	blk_mq_init_cpu_queues(q, set->nr_hw_queues);  in blk_mq_init_allocated_queue()
4293 	blk_mq_exit_hw_queues(q, set, set->nr_hw_queues);  in blk_mq_exit_queue()
4310 	for (i = 0; i < set->nr_hw_queues; i++) {  in __blk_mq_alloc_rq_maps()
4373 		set->map[HCTX_TYPE_DEFAULT].nr_queues = set->nr_hw_queues;  in blk_mq_update_queue_map()
4408 	if (set->nr_hw_queues >= new_nr_hw_queues)  in blk_mq_realloc_tag_set_tags()
4417 		memcpy(new_tags, set->tags, set->nr_hw_queues *  in blk_mq_realloc_tag_set_tags()
4422 	for (i = set->nr_hw_queues; i < new_nr_hw_queues; i++) {  in blk_mq_realloc_tag_set_tags()
4424 			while (--i >= set->nr_hw_queues)  in blk_mq_realloc_tag_set_tags()
4432 	set->nr_hw_queues = new_nr_hw_queues;  in blk_mq_realloc_tag_set_tags()
4448 	if (!set->nr_hw_queues)  in blk_mq_alloc_tag_set()
4478 		set->nr_hw_queues = 1;  in blk_mq_alloc_tag_set()
4486 	if (set->nr_maps == 1 && set->nr_hw_queues > nr_cpu_ids)  in blk_mq_alloc_tag_set()
4487 		set->nr_hw_queues = nr_cpu_ids;  in blk_mq_alloc_tag_set()
4499 	set->tags = kcalloc_node(set->nr_hw_queues,  in blk_mq_alloc_tag_set()
4511 		set->map[i].nr_queues = is_kdump_kernel() ? 1 : set->nr_hw_queues;  in blk_mq_alloc_tag_set()
4549 	set->nr_hw_queues = 1;  in blk_mq_alloc_sq_tag_set()
4562 	for (i = 0; i < set->nr_hw_queues; i++)  in blk_mq_free_tag_set()
4715 							int nr_hw_queues)  in __blk_mq_update_nr_hw_queues()  argument
4719 	int prev_nr_hw_queues = set->nr_hw_queues;  in __blk_mq_update_nr_hw_queues()
4724 	if (set->nr_maps == 1 && nr_hw_queues > nr_cpu_ids)  in __blk_mq_update_nr_hw_queues()
4725 		nr_hw_queues = nr_cpu_ids;  in __blk_mq_update_nr_hw_queues()
4726 	if (nr_hw_queues < 1)  in __blk_mq_update_nr_hw_queues()
4728 	if (set->nr_maps == 1 && nr_hw_queues == set->nr_hw_queues)  in __blk_mq_update_nr_hw_queues()
4747 	if (blk_mq_realloc_tag_set_tags(set, nr_hw_queues) < 0)  in __blk_mq_update_nr_hw_queues()
4755 		if (q->nr_hw_queues != set->nr_hw_queues) {  in __blk_mq_update_nr_hw_queues()
4759 					nr_hw_queues, prev_nr_hw_queues);  in __blk_mq_update_nr_hw_queues()
4760 			for (; i < set->nr_hw_queues; i++)  in __blk_mq_update_nr_hw_queues()
4763 			set->nr_hw_queues = prev_nr_hw_queues;  in __blk_mq_update_nr_hw_queues()
4783 	for (i = set->nr_hw_queues; i < prev_nr_hw_queues; i++)  in __blk_mq_update_nr_hw_queues()
4787 void blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set, int nr_hw_queues)  in blk_mq_update_nr_hw_queues()  argument
4790 	__blk_mq_update_nr_hw_queues(set, nr_hw_queues);  in blk_mq_update_nr_hw_queues()