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Commit c1c0ffff authored by Sagi Grimberg's avatar Sagi Grimberg
Browse files

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: default avatarMing Lei <ming.lei@redhat.com>
Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
parent f9c5af5f

drivers/nvme/target/loop.c

+2 −1
Original line number Diff line number Diff line
@@ -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);

}