59 		if (h->disk)  in nvme_mpath_unfreeze()
60 			blk_mq_unfreeze_queue(h->disk->queue);  in nvme_mpath_unfreeze()
69 		if (h->disk)  in nvme_mpath_wait_freeze()
70 			blk_mq_freeze_queue_wait(h->disk->queue);  in nvme_mpath_wait_freeze()
79 		if (h->disk)  in nvme_mpath_start_freeze()
80 			blk_freeze_queue_start(h->disk->queue);  in nvme_mpath_start_freeze()
104 		bio_set_dev(bio, ns->head->disk->part0);  in nvme_failover_req()
128 	struct gendisk *disk = ns->head->disk;  in nvme_mpath_start_request()  local
130 	if (!blk_queue_io_stat(disk->queue) || blk_rq_is_passthrough(rq))  in nvme_mpath_start_request()
134 	nvme_req(rq)->start_time = bdev_start_io_acct(disk->part0, req_op(rq),  in nvme_mpath_start_request()
145 	bdev_end_io_acct(ns->head->disk->part0, req_op(rq),  in nvme_mpath_end_request()
156 		if (!ns->head->disk)  in nvme_kick_requeue_lists()
160 			disk_uevent(ns->head->disk, KOBJ_CHANGE);  in nvme_kick_requeue_lists()
208 	sector_t capacity = get_capacity(head->disk);  in nvme_mpath_revalidate_paths()
214 		if (capacity != get_capacity(ns->disk))  in nvme_mpath_revalidate_paths()
377 	struct device *dev = disk_to_dev(head->disk);  in nvme_ns_head_submit_bio()
393 		bio_set_dev(bio, ns->disk->part0);  in nvme_ns_head_submit_bio()
395 		trace_block_bio_remap(bio, disk_devt(ns->head->disk),  in nvme_ns_head_submit_bio()
413 static int nvme_ns_head_open(struct gendisk *disk, blk_mode_t mode)  in nvme_ns_head_open()  argument
415 	if (!nvme_tryget_ns_head(disk->private_data))  in nvme_ns_head_open()
420 static void nvme_ns_head_release(struct gendisk *disk)  in nvme_ns_head_release()  argument
422 	nvme_put_ns_head(disk->private_data);  in nvme_ns_head_release()
426 static int nvme_ns_head_report_zones(struct gendisk *disk, sector_t sector,  in nvme_ns_head_report_zones()  argument
429 	struct nvme_ns_head *head = disk->private_data;  in nvme_ns_head_report_zones()
534 	head->disk = blk_alloc_disk(ctrl->numa_node);  in nvme_mpath_alloc_disk()
535 	if (!head->disk)  in nvme_mpath_alloc_disk()
537 	head->disk->fops = &nvme_ns_head_ops;  in nvme_mpath_alloc_disk()
538 	head->disk->private_data = head;  in nvme_mpath_alloc_disk()
539 	sprintf(head->disk->disk_name, "nvme%dn%d",  in nvme_mpath_alloc_disk()
542 	blk_queue_flag_set(QUEUE_FLAG_NONROT, head->disk->queue);  in nvme_mpath_alloc_disk()
543 	blk_queue_flag_set(QUEUE_FLAG_NOWAIT, head->disk->queue);  in nvme_mpath_alloc_disk()
544 	blk_queue_flag_set(QUEUE_FLAG_IO_STAT, head->disk->queue);  in nvme_mpath_alloc_disk()
553 		blk_queue_flag_set(QUEUE_FLAG_POLL, head->disk->queue);  in nvme_mpath_alloc_disk()
556 	blk_queue_logical_block_size(head->disk->queue, 512);  in nvme_mpath_alloc_disk()
557 	blk_set_stacking_limits(&head->disk->queue->limits);  in nvme_mpath_alloc_disk()
558 	blk_queue_dma_alignment(head->disk->queue, 3);  in nvme_mpath_alloc_disk()
563 	blk_queue_write_cache(head->disk->queue, vwc, vwc);  in nvme_mpath_alloc_disk()
572 	if (!head->disk)  in nvme_mpath_set_live()
581 		rc = device_add_disk(&head->subsys->dev, head->disk,  in nvme_mpath_set_live()
871 	if (blk_queue_stable_writes(ns->queue) && ns->head->disk)  in nvme_mpath_add_disk()
873 				   ns->head->disk->queue);  in nvme_mpath_add_disk()
875 	if (blk_queue_is_zoned(ns->queue) && ns->head->disk)  in nvme_mpath_add_disk()
876 		ns->head->disk->nr_zones = ns->disk->nr_zones;  in nvme_mpath_add_disk()
882 	if (!head->disk)  in nvme_mpath_shutdown_disk()
887 		del_gendisk(head->disk);  in nvme_mpath_shutdown_disk()
893 	if (!head->disk)  in nvme_mpath_remove_disk()
898 	put_disk(head->disk);  in nvme_mpath_remove_disk()