From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48402) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aYop9-0005eS-Ob for qemu-devel@nongnu.org; Thu, 25 Feb 2016 00:50:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aYop6-0001KN-Hc for qemu-devel@nongnu.org; Thu, 25 Feb 2016 00:50:51 -0500 Received: from mx2.parallels.com ([199.115.105.18]:59436) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aYop6-0001Jw-C1 for qemu-devel@nongnu.org; Thu, 25 Feb 2016 00:50:48 -0500 References: <1456239585-13324-1-git-send-email-den@openvz.org> <1456239585-13324-2-git-send-email-den@openvz.org> <20160223172048-mutt-send-email-mst@redhat.com> <56CC7ADD.5080508@openvz.org> <20160223174837-mutt-send-email-mst@redhat.com> <20160224100133.GA2519@rkaganb.sw.ru> <20160224162344-mutt-send-email-mst@redhat.com> <56CDCFA7.90308@redhat.com> From: "Denis V. Lunev" Message-ID: <56CE962B.40809@openvz.org> Date: Thu, 25 Feb 2016 08:50:35 +0300 MIME-Version: 1.0 In-Reply-To: <56CDCFA7.90308@redhat.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 1/2] virtio-balloon: export all balloon statistics List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Eric Blake , "Michael S. Tsirkin" , Roman Kagan , Igor Redko , qemu-devel@nongnu.org On 02/24/2016 06:43 PM, Eric Blake wrote: > On 02/24/2016 07:31 AM, Michael S. Tsirkin wrote: >>> One of the benefits is forward compatibility, so that counters that have >>> graduated into supported ones and have got their own number and name, >>> can be made to work with qemu that doesn't yet recognize them. >> Then management does start relying on the x- prefixed things, >> and once it's used to that it's a slippery slope. > Any management tool that relies on an x- prefix name is broken. We've > explicitly documented that the x- prefix is unstable and liable to go > away with a future release. Any management app that wants to use a > feature beginning with x- should FIRST push hard to get the x- removed > and stabilize the interface (and libvirt, at least, does just that). > this was exactly an original idea. Names started with 'x-' are _officially_ unstable and for debug purpose. That is why I'd prefer if v2 of the patchset will be taken. Thank you.