From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-bl2nam02on0092.outbound.protection.outlook.com ([104.47.38.92]:43727 "EHLO NAM02-BL2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728038AbeIGFPy (ORCPT ); Fri, 7 Sep 2018 01:15:54 -0400 From: Sasha Levin To: "stable@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Sagi Grimberg , Christoph Hellwig , Sasha Levin Subject: [PATCH AUTOSEL 4.18 53/88] nvme-rdma: unquiesce queues when deleting the controller Date: Fri, 7 Sep 2018 00:36:31 +0000 Message-ID: <20180907003547.57567-53-alexander.levin@microsoft.com> References: <20180907003547.57567-1-alexander.levin@microsoft.com> In-Reply-To: <20180907003547.57567-1-alexander.levin@microsoft.com> Content-Language: en-US Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org List-ID: From: Sagi Grimberg [ Upstream commit 90140624e8face94207003ac9a9d2a329b309d68 ] If the controller is going away, we need to unquiesce the IO queues so that all pending request can fail gracefully before moving forward with controller deletion. Do that before we destroy the IO queues so blk_cleanup_queue won't block in freeze. Signed-off-by: Sagi Grimberg Signed-off-by: Christoph Hellwig Signed-off-by: Sasha Levin --- drivers/nvme/host/rdma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 66ec5985c9f3..69fb62feb833 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -1741,6 +1741,8 @@ static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_= ctrl *ctrl, bool shutdown) nvme_rdma_stop_io_queues(ctrl); blk_mq_tagset_busy_iter(&ctrl->tag_set, nvme_cancel_request, &ctrl->ctrl); + if (shutdown) + nvme_start_queues(&ctrl->ctrl); nvme_rdma_destroy_io_queues(ctrl, shutdown); } =20 --=20 2.17.1