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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4CE76C433EF for ; Tue, 12 Oct 2021 11:11:52 +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 EDC2860F3A for ; Tue, 12 Oct 2021 11:11:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org EDC2860F3A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:46924 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1maFhH-0005lK-04 for qemu-devel@archiver.kernel.org; Tue, 12 Oct 2021 07:11:51 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57342) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1maFPD-0008LS-35 for qemu-devel@nongnu.org; Tue, 12 Oct 2021 06:53:12 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:39769) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1maFPB-0000tS-8G for qemu-devel@nongnu.org; Tue, 12 Oct 2021 06:53:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1634035987; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=7X95XO2ex8D3Uum7qUeOUAwnZblq59TSgCIoDNzMvkE=; b=bGNsqXnh3IyAqBo6QHXAPCGGdLdpe+FpvZjeb7yfb0f919G5w2Bp4icxNVkqY4gL59iitG WcELgtD4iZb/h8Ww34LQpFQOMAYKFgMc47H/aKyueA2nlg2AjTD7Fa1Y0tDV4BlaW7sYju gCRPESYAEAFLAxsFgno/6EDE+fhqkIY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-137-QUu8453vMuKJ1-Pqpat6Yg-1; Tue, 12 Oct 2021 06:53:03 -0400 X-MC-Unique: QUu8453vMuKJ1-Pqpat6Yg-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 9F3559F92D; Tue, 12 Oct 2021 10:53:02 +0000 (UTC) Received: from redhat.com (unknown [10.39.193.219]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 960481B472; Tue, 12 Oct 2021 10:53:00 +0000 (UTC) Date: Tue, 12 Oct 2021 12:52:58 +0200 From: Kevin Wolf To: Eric Blake Subject: Re: [PATCH RFC v2 5/5] block: Deprecate transaction type drive-backup Message-ID: References: <20211009120944.2858887-1-armbru@redhat.com> <20211009120944.2858887-6-armbru@redhat.com> <20211011185817.czv4tmlsxiyhuqrp@redhat.com> MIME-Version: 1.0 In-Reply-To: <20211011185817.czv4tmlsxiyhuqrp@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kwolf@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=216.205.24.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.049, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: vsementsov@virtuozzo.com, berrange@redhat.com, qemu-devel@nongnu.org, mdroth@linux.vnet.ibm.com, Markus Armbruster , libvir-list@redhat.com, pkrempa@redhat.com, marcandre.lureau@redhat.com, jsnow@redhat.com, libguestfs@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Am 11.10.2021 um 20:58 hat Eric Blake geschrieben: > On Sat, Oct 09, 2021 at 02:09:44PM +0200, Markus Armbruster wrote: > > Several moons ago, Vladimir posted > > > > Subject: [PATCH v2 3/3] qapi: deprecate drive-backup > > Date: Wed, 5 May 2021 16:58:03 +0300 > > Message-Id: <20210505135803.67896-4-vsementsov@virtuozzo.com> > > https://lists.gnu.org/archive/html/qemu-devel/2021-05/msg01394.html > > > > with this > > > > TODO: We also need to deprecate drive-backup transaction action.. > > But union members in QAPI doesn't support 'deprecated' feature. I tried > > to dig a bit, but failed :/ Markus, could you please help with it? At > > least by advice? > > > > This is one way to resolve it. Sorry it took so long. > > > > John explored another way, namely adding feature flags to union > > branches. Could also be useful, say to add different features to > > branches in multiple unions sharing the same tag enum. > > > > Signed-off-by: Markus Armbruster > > --- > > qapi/transaction.json | 5 ++++- > > 1 file changed, 4 insertions(+), 1 deletion(-) > > > > diff --git a/qapi/transaction.json b/qapi/transaction.json > > index d175b5f863..0564a893b3 100644 > > --- a/qapi/transaction.json > > +++ b/qapi/transaction.json > > @@ -54,6 +54,9 @@ > > # @blockdev-snapshot-sync: since 1.1 > > # @drive-backup: Since 1.6 > > # > > +# Features: > > +# @deprecated: Member @drive-backup is deprecated. Use FIXME instead. > > Obviously, we'd need to flesh this out ("'blockdev-backup' with proper > node names"? something else?) before dropping RFC on this patch. What does 'blockdev-backup' with improper node names look like? I think it's sufficient to say "Use @blockdev-backup instead", which is already documented to take a node/device name instead of a file name. > And we'd want to edit docs/about/deprecated.rst to match. Yes. Kevin