787 	__acquires(rcu) __acquires(disk->queue->queue_lock)  in blkg_conf_prep()
789 	struct gendisk *disk;  in blkg_conf_prep()  local
803 	disk = get_gendisk(MKDEV(major, minor), &part);  in blkg_conf_prep()
804 	if (!disk)  in blkg_conf_prep()
807 		put_disk(disk);  in blkg_conf_prep()
812 	spin_lock_irq(disk->queue->queue_lock);  in blkg_conf_prep()
814 	if (blkcg_policy_enabled(disk->queue, pol))  in blkg_conf_prep()
815 		blkg = blkg_lookup_create(blkcg, disk->queue);  in blkg_conf_prep()
822 		spin_unlock_irq(disk->queue->queue_lock);  in blkg_conf_prep()
823 		put_disk(disk);  in blkg_conf_prep()
837 	ctx->disk = disk;  in blkg_conf_prep()
852 	__releases(ctx->disk->queue->queue_lock) __releases(rcu)  in blkg_conf_finish()
854 	spin_unlock_irq(ctx->disk->queue->queue_lock);  in blkg_conf_finish()
856 	put_disk(ctx->disk);  in blkg_conf_finish()