From nobody Wed Feb 11 02:33:17 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1493743925758478.48639783549413; Tue, 2 May 2017 09:52:05 -0700 (PDT) Received: from localhost ([::1]:60203 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d5b1t-0000WC-As for importer@patchew.org; Tue, 02 May 2017 12:52:01 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60763) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d5ann-0004O9-Lz for qemu-devel@nongnu.org; Tue, 02 May 2017 12:37:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d5anm-0000kh-RP for qemu-devel@nongnu.org; Tue, 02 May 2017 12:37:27 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59848) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d5ani-0000fU-9I; Tue, 02 May 2017 12:37:22 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2778EC1D3505; Tue, 2 May 2017 16:37:21 +0000 (UTC) Received: from lemon.redhat.com (ovpn-8-41.pek2.redhat.com [10.72.8.41]) by smtp.corp.redhat.com (Postfix) with ESMTP id B9543173A8; Tue, 2 May 2017 16:37:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 2778EC1D3505 Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=famz@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 2778EC1D3505 From: Fam Zheng To: qemu-devel@nongnu.org Date: Wed, 3 May 2017 00:35:50 +0800 Message-Id: <20170502163558.7611-16-famz@redhat.com> In-Reply-To: <20170502163558.7611-1-famz@redhat.com> References: <20170502163558.7611-1-famz@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Tue, 02 May 2017 16:37:21 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v17 15/23] file-posix: Add 'locking' option X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , famz@redhat.com, qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Making this option available even before implementing it will let converting tests easier: in coming patches they can specify the option already when necessary, before we actually write code to lock the images. Signed-off-by: Fam Zheng --- block/file-posix.c | 5 +++++ qapi/block-core.json | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/block/file-posix.c b/block/file-posix.c index 1941fb6..261563d 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -392,6 +392,11 @@ static QemuOptsList raw_runtime_opts =3D { .type =3D QEMU_OPT_STRING, .help =3D "host AIO implementation (threads, native)", }, + { + .name =3D "locking", + .type =3D QEMU_OPT_STRING, + .help =3D "file locking mode (on/off/auto, default: auto)", + }, { /* end of list */ } }, }; diff --git a/qapi/block-core.json b/qapi/block-core.json index 1cf29a1..29d3040 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -2127,11 +2127,15 @@ # # @filename: path to the image file # @aio: AIO backend (default: threads) (since: 2.8) +# @locking: whether to enable file locking. If set to 'auto', only ena= ble +# when Open File Descriptor (OFD) locking API is available +# (default: auto, since 2.10) # # Since: 2.9 ## { 'struct': 'BlockdevOptionsFile', 'data': { 'filename': 'str', + '*locking': 'OnOffAuto', '*aio': 'BlockdevAioOptions' } } =20 ## --=20 2.9.3