[PATCH 5/8] nvme: sync the namespace scanning during ctrl start

[Sagi Grimberg]

> @@ -4537,9 +4536,10 @@ void nvme_start_ctrl(struct nvme_ctrl *ctrl)
>   		nvme_change_uevent(ctrl, "NVME_EVENT=rediscover");
>   
>   	if (ctrl->queue_count > 1) {
> -		nvme_queue_scan(ctrl);
> +		nvme_queue_scan_sync(ctrl);
>   		nvme_unquiesce_io_queues(ctrl);
>   		nvme_mpath_update(ctrl);
> +		nvme_kick_requeue_lists(ctrl);
>   	}

I really don't think its a good idea to block ctrl start
like that.