From patchwork Wed Jun 26 11:01:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Sementsov-Ogievskiy X-Patchwork-Id: 13712715 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id F180EC30653 for ; Wed, 26 Jun 2024 11:02:38 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sMQPW-0007LS-I7; Wed, 26 Jun 2024 07:01:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sMQPT-0007JR-6R; Wed, 26 Jun 2024 07:01:56 -0400 Received: from forwardcorp1a.mail.yandex.net ([178.154.239.72]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sMQPN-0003SE-58; Wed, 26 Jun 2024 07:01:54 -0400 Received: from mail-nwsmtp-smtp-corp-main-66.iva.yp-c.yandex.net (mail-nwsmtp-smtp-corp-main-66.iva.yp-c.yandex.net [IPv6:2a02:6b8:c0c:1c20:0:640:f632:0]) by forwardcorp1a.mail.yandex.net (Yandex) with ESMTPS id 1006760F2C; Wed, 26 Jun 2024 14:01:44 +0300 (MSK) Received: from vsementsov-lin.. (unknown [2a02:6b8:b081:b645::1:29]) by mail-nwsmtp-smtp-corp-main-66.iva.yp-c.yandex.net (smtpcorp/Yandex) with ESMTPSA id P1OLrj0IhSw0-2j1SLQRl; Wed, 26 Jun 2024 14:01:43 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex-team.ru; s=default; t=1719399703; bh=IP/7c3urCxtxEZ5EuganaMwu2l+duCJlhM4632kUDA4=; h=Message-Id:Date:In-Reply-To:Cc:Subject:References:To:From; b=qMJ57jZkyuPAz6fZAMg5vgIx2jy2PrlxNzjl2oUZODtBKlNMnb07ojKyus47rLIGN uo6M0AXRk49mf8qooFfmN9eCYTiBMlP4hi5rm5YLsnA3Xt4CD3+9fzdBhd8+nvzMin j4oLXzSHinv/c9dFyT4eWM167aBoksUamQMdEmC8= Authentication-Results: mail-nwsmtp-smtp-corp-main-66.iva.yp-c.yandex.net; dkim=pass header.i=@yandex-team.ru From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, armbru@redhat.com, eblake@redhat.com, devel@lists.libvirt.org, hreitz@redhat.com, kwolf@redhat.com, vsementsov@yandex-team.ru, jsnow@redhat.com, pkrempa@redhat.com, f.ebner@proxmox.com Subject: [PATCH v2 3/7] qapi: block-job-change: make copy-mode parameter optional Date: Wed, 26 Jun 2024 14:01:20 +0300 Message-Id: <20240626110124.374336-4-vsementsov@yandex-team.ru> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240626110124.374336-1-vsementsov@yandex-team.ru> References: <20240626110124.374336-1-vsementsov@yandex-team.ru> MIME-Version: 1.0 Received-SPF: pass client-ip=178.154.239.72; envelope-from=vsementsov@yandex-team.ru; helo=forwardcorp1a.mail.yandex.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org We are going to add more parameters to change. We want to make possible to change only one or any subset of available options. So all the options should be optional. Signed-off-by: Vladimir Sementsov-Ogievskiy Acked-by: Markus Armbruster --- block/mirror.c | 4 ++++ qapi/block-core.json | 3 ++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/block/mirror.c b/block/mirror.c index 2816bb1042..60e8d83e4f 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -1272,6 +1272,10 @@ static void mirror_change(BlockJob *job, JobChangeOptions *opts, GLOBAL_STATE_CODE(); + if (!change_opts->has_copy_mode) { + return; + } + if (qatomic_read(&s->copy_mode) == change_opts->copy_mode) { return; } diff --git a/qapi/block-core.json b/qapi/block-core.json index 4ec5632596..660c7f4a48 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -3071,11 +3071,12 @@ # # @copy-mode: Switch to this copy mode. Currently, only the switch # from 'background' to 'write-blocking' is implemented. +# If absent, copy mode remains the same. (optional since 9.1) # # Since: 8.2 ## { 'struct': 'JobChangeOptionsMirror', - 'data': { 'copy-mode' : 'MirrorCopyMode' } } + 'data': { '*copy-mode' : 'MirrorCopyMode' } } ## # @JobChangeOptions: