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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 991F8C10F13 for ; Mon, 8 Apr 2019 22:31:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 656BF213F2 for ; Mon, 8 Apr 2019 22:31:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726554AbfDHWbe (ORCPT ); Mon, 8 Apr 2019 18:31:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45516 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726437AbfDHWbe (ORCPT ); Mon, 8 Apr 2019 18:31:34 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 71F2D30821FF; Mon, 8 Apr 2019 22:31:34 +0000 (UTC) Received: from localhost (ovpn-8-16.pek2.redhat.com [10.72.8.16]) by smtp.corp.redhat.com (Postfix) with ESMTP id 15D211001E69; Mon, 8 Apr 2019 22:31:30 +0000 (UTC) From: Ming Lei To: Jens Axboe Cc: linux-block@vger.kernel.org, Ming Lei , Keith Busch , Sagi Grimberg , Bart Van Assche , James Smart , Christoph Hellwig , linux-nvme@lists.infradead.org Subject: [PATCH V4 0/2] blk-mq/nvme: cancel request synchronously Date: Tue, 9 Apr 2019 06:31:20 +0800 Message-Id: <20190408223122.29844-1-ming.lei@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.47]); Mon, 08 Apr 2019 22:31:34 +0000 (UTC) Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hi, This patchset introduces blk_mq_complete_request_sync() for canceling request synchronously in error handler context, then one race between completing request remotely and destroying contoller/queues can be fixed. V4: - drop return value - don't handle fake timeout V3: - avoid extra cost to blk_mq_complete_request V2: - export via EXPORT_SYMBOL_GPL - minor commit log change Ming Lei (2): blk-mq: introduce blk_mq_complete_request_sync() nvme: cancel request synchronously block/blk-mq.c | 7 +++++++ drivers/nvme/host/core.c | 2 +- include/linux/blk-mq.h | 1 + 3 files changed, 9 insertions(+), 1 deletion(-) Cc: Keith Busch Cc: Sagi Grimberg Cc: Bart Van Assche Cc: James Smart Cc: Christoph Hellwig Cc: linux-nvme@lists.infradead.org -- 2.9.5