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=-7.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no 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 C1A1AC433DF for ; Mon, 10 Aug 2020 14:55:16 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 97B802083B for ; Mon, 10 Aug 2020 14:55:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 97B802083B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38200 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k59Cl-0000Vv-U7 for qemu-devel@archiver.kernel.org; Mon, 10 Aug 2020 10:55:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40746) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k59B0-0006Vt-If; Mon, 10 Aug 2020 10:53:26 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:4172 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k59Ay-0002ij-HN; Mon, 10 Aug 2020 10:53:26 -0400 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id A38DBAEE90DE9EFF5AAA; Mon, 10 Aug 2020 22:53:07 +0800 (CST) Received: from DESKTOP-KKJBAGG.china.huawei.com (10.174.186.173) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.487.0; Mon, 10 Aug 2020 22:53:00 +0800 From: Zhenyu Ye To: , Subject: [PATCH v1 0/2] Add timeout mechanism to qmp actions Date: Mon, 10 Aug 2020 22:52:44 +0800 Message-ID: <20200810145246.1049-1-yezhenyu2@huawei.com> X-Mailer: git-send-email 2.22.0.windows.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.174.186.173] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.190; envelope-from=yezhenyu2@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/10 10:53:08 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, fam@euphon.net, yezhenyu2@huawei.com, armbru@redhat.com, xiexiangyou@huawei.com, mreitz@redhat.com, stefanha@redhat.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Before doing qmp actions, we need to lock the qemu_global_mutex, so the qmp actions should not take too long time. Unfortunately, some qmp actions need to acquire aio context and this may take a long time. The vm will soft lockup if this time is too long. So add a timeout mechanism while doing qmp actions. Zhenyu Ye (2): util: introduce aio_context_acquire_timeout qmp: use aio_context_acquire_timeout replace aio_context_acquire block/qapi-sysemu.c | 7 ++++++- block/qapi.c | 6 +++++- blockdev.c | 35 ++++++++++++++++++++++++++++++----- include/block/aio.h | 6 ++++++ include/qemu/thread-posix.h | 1 + include/qemu/thread.h | 1 + util/async.c | 10 ++++++++++ util/qemu-thread-posix.c | 6 ++++++ 8 files changed, 65 insertions(+), 7 deletions(-) -- 2.22.0.windows.1