From nobody Tue Nov 11 04:56:28 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1560994451; cv=none; d=zoho.com; s=zohoarc; b=IvzF0KCJKL67M9i4d1pPc/rvggnZm2VDVhkEBuN5biVlx15rEJuaWaoJXzxoqA+ri837iUXRL92g3ZzU9NUjWCfnV8SBZUdDrAmwou/+B2XH4+2hWHebKW/jUTWVkTbLhX9Pr7b0SrE6z9YMjcXwsef/fan143kRPtjgWEUcTZM= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1560994451; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=LRFH1cG5eimTNmSAW3noLIpfAHEuplZow0G2/9z9U1M=; b=gvAtviMeOE2moFFpIufYmj8wHQ6m6KxLLNKfYVgyJ2exev9XaDIXZqr3Rcj4+HrsIZe6b3JBuMxO4xShiBWBieZ6taahDanqGvDc1qpA5K9AOyK0iH76dg5pq6LHHM03XouxbUmOeW3ddZXtogLaiXUxK9cx6akZXu3rORqnkD0= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (209.51.188.17 [209.51.188.17]) by mx.zohomail.com with SMTPS id 1560994451949199.17982204279474; Wed, 19 Jun 2019 18:34:11 -0700 (PDT) Received: from localhost ([::1]:43054 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hdlxg-0000fF-RL for importer@patchew.org; Wed, 19 Jun 2019 21:34:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40761) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hdleI-0002HM-PH for qemu-devel@nongnu.org; Wed, 19 Jun 2019 21:14:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hdlUk-0004kv-LJ for qemu-devel@nongnu.org; Wed, 19 Jun 2019 21:04:07 -0400 Received: from mx1.redhat.com ([209.132.183.28]:54564) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hdlUj-0004ij-BD; Wed, 19 Jun 2019 21:04:05 -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 7F78585543; Thu, 20 Jun 2019 01:04:04 +0000 (UTC) Received: from probe.bos.redhat.com (dhcp-17-164.bos.redhat.com [10.18.17.164]) by smtp.corp.redhat.com (Postfix) with ESMTP id 649E71001E67; Thu, 20 Jun 2019 01:04:03 +0000 (UTC) From: John Snow To: qemu-devel@nongnu.org, qemu-block@nongnu.org Date: Wed, 19 Jun 2019 21:03:45 -0400 Message-Id: <20190620010356.19164-2-jsnow@redhat.com> In-Reply-To: <20190620010356.19164-1-jsnow@redhat.com> References: <20190620010356.19164-1-jsnow@redhat.com> MIME-Version: 1.0 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 [10.5.110.28]); Thu, 20 Jun 2019 01:04:04 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH 01/12] qapi: add BitmapSyncMode enum 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: Kevin Wolf , Fam Zheng , vsementsov@virtuozzo.com, Wen Congyang , Xie Changlong , Markus Armbruster , Max Reitz , John Snow Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Depending on what a user is trying to accomplish, there might be a few bitmap cleanup actions that occur when an operation is finished that could be useful. I am proposing three: - NEVER: The bitmap is never synchronized against what was copied. - ALWAYS: The bitmap is always synchronized, even on failures. - CONDITIONAL: The bitmap is synchronized only on success. The existing incremental backup modes use 'conditional' semantics, so add just that one for right now. Signed-off-by: John Snow --- qapi/block-core.json | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/qapi/block-core.json b/qapi/block-core.json index 0d43d4f37c..caf28a71a0 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -1134,6 +1134,20 @@ { 'enum': 'MirrorSyncMode', 'data': ['top', 'full', 'none', 'incremental'] } =20 +## +# @BitmapSyncMode: +# +# An enumeration of possible behaviors for the synchronization of a bitmap +# when used for data copy operations. +# +# @conditional: The bitmap is only synchronized when the operation is succ= essul. +# This is useful for Incremental semantics. +# +# Since: 4.1 +## +{ 'enum': 'BitmapSyncMode', + 'data': ['conditional'] } + ## # @MirrorCopyMode: # --=20 2.21.0