From patchwork Fri Nov 24 08:53:51 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fam Zheng X-Patchwork-Id: 840989 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3yjqmc4X72z9sQl for ; Fri, 24 Nov 2017 19:56:16 +1100 (AEDT) Received: from localhost ([::1]:48054 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eI9mQ-0006k8-Po for incoming@patchwork.ozlabs.org; Fri, 24 Nov 2017 03:56:14 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59540) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eI9kM-0005dw-EW for qemu-devel@nongnu.org; Fri, 24 Nov 2017 03:54:07 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eI9kL-0001fM-R8 for qemu-devel@nongnu.org; Fri, 24 Nov 2017 03:54:06 -0500 Received: from mx1.redhat.com ([209.132.183.28]:52470) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eI9kL-0001dg-Ke for qemu-devel@nongnu.org; Fri, 24 Nov 2017 03:54:05 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id ABEB6C058EDD; Fri, 24 Nov 2017 08:54:04 +0000 (UTC) Received: from lemon.redhat.com (ovpn-12-45.pek2.redhat.com [10.72.12.45]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8FC4461984; Fri, 24 Nov 2017 08:54:00 +0000 (UTC) From: Fam Zheng To: qemu-devel@nongnu.org Date: Fri, 24 Nov 2017 16:53:51 +0800 Message-Id: <20171124085351.26386-3-famz@redhat.com> In-Reply-To: <20171124085351.26386-1-famz@redhat.com> References: <20171124085351.26386-1-famz@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Fri, 24 Nov 2017 08:54:04 +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 v2 2/2] qemu-options: Mention locking option of file driver 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: kwolf@redhat.com, mreitz@redhat.com, famz@redhat.com, Philipp Hahn Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Fam Zheng --- qemu-options.hx | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/qemu-options.hx b/qemu-options.hx index 3728e9b4dd..f10c2a3ddb 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -693,6 +693,10 @@ This is the protocol-level block driver for accessing regular files. The path to the image file in the local filesystem @item aio Specifies the AIO backend (threads/native, default: threads) +@item locking +Specifies whether the image file is protected with Linux OFD / POSIX locks. The +default is to use the Linux Open File Descriptor API if avaiable, otherwise no +lock is applied. (auto/on/off, default: auto) @end table Example: @example