From: Sagi Grimberg Date: Sun, 2 Jul 2017 12:40:17 +0000 (+0300) Subject: nvme-loop: quiesce/unquiesce admin_q instead of start/stop its hw queues X-Git-Tag: v5.15~10881^2~1^2~12 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c1c0ffff3a99caf40c3bd21447135db459194123;p=platform%2Fkernel%2Flinux-starfive.git nvme-loop: quiesce/unquiesce admin_q instead of start/stop its hw queues unlike blk_mq_stop_hw_queues and blk_mq_start_stopped_hw_queues quiescing/unquiescing respects the submission path rcu grace. Reviewed-by: Ming Lei Signed-off-by: Sagi Grimberg --- diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c index 3d51341..6a0b706 100644 --- a/drivers/nvme/target/loop.c +++ b/drivers/nvme/target/loop.c @@ -434,9 +434,10 @@ static void nvme_loop_shutdown_ctrl(struct nvme_loop_ctrl *ctrl) if (ctrl->ctrl.state == NVME_CTRL_LIVE) nvme_shutdown_ctrl(&ctrl->ctrl); - blk_mq_stop_hw_queues(ctrl->ctrl.admin_q); + blk_mq_quiesce_queue(ctrl->ctrl.admin_q); blk_mq_tagset_busy_iter(&ctrl->admin_tag_set, nvme_cancel_request, &ctrl->ctrl); + blk_mq_unquiesce_queue(ctrl->ctrl.admin_q); nvme_loop_destroy_admin_queue(ctrl); }