From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 52E4DC4742C for ; Tue, 10 Nov 2020 04:02:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D73652063A for ; Tue, 10 Nov 2020 04:02:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="0FRIRzQ6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733205AbgKJECO (ORCPT ); Mon, 9 Nov 2020 23:02:14 -0500 Received: from mail.kernel.org ([198.145.29.99]:56630 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733094AbgKJDzT (ORCPT ); Mon, 9 Nov 2020 22:55:19 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2C14C21D40; Tue, 10 Nov 2020 03:55:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604980519; bh=ULxZwHdt8rMlGg8HOzqd9RTQhPBGedjg+6C9gGwbTlw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0FRIRzQ6ffnw0ewhl/tph9YDfUa3jYQqHJXYFxtmRmYM1JDkLj3bmTFFxforXkgnp jYyA4ylYhIllDd+0oXc+uU1knZsYalq6se9ac3NiqsOU3yM1Vysulpoz1qV4fyWxln W7Q2HNArSsMlH5hOSTvWUhwFc82oqRf8Fg0VMMDA= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sagi Grimberg , Chao Leng , Christoph Hellwig , Sasha Levin , linux-nvme@lists.infradead.org Subject: [PATCH AUTOSEL 5.4 27/42] nvme-rdma: avoid repeated request completion Date: Mon, 9 Nov 2020 22:54:25 -0500 Message-Id: <20201110035440.424258-27-sashal@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201110035440.424258-1-sashal@kernel.org> References: <20201110035440.424258-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sagi Grimberg [ Upstream commit fdf58e02adecbef4c7cbb2073d8ea225e6fd5f26 ] The request may be executed asynchronously, and rq->state may be changed to IDLE. To avoid repeated request completion, only MQ_RQ_COMPLETE of rq->state is checked in nvme_rdma_complete_timed_out. It is not safe, so need adding check IDLE for rq->state. Signed-off-by: Sagi Grimberg Signed-off-by: Chao Leng Signed-off-by: Christoph Hellwig Signed-off-by: Sasha Levin --- drivers/nvme/host/rdma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 5199618510a2a..9948e2dfe55f2 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -1719,7 +1719,7 @@ static void nvme_rdma_complete_timed_out(struct request *rq) struct nvme_rdma_queue *queue = req->queue; nvme_rdma_stop_queue(queue); - if (!blk_mq_request_completed(rq)) { + if (blk_mq_request_started(rq) && !blk_mq_request_completed(rq)) { nvme_req(rq)->status = NVME_SC_HOST_ABORTED_CMD; blk_mq_complete_request(rq); } -- 2.27.0