Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933769AbcJURZY (ORCPT ); Fri, 21 Oct 2016 13:25:24 -0400 Received: from mga07.intel.com ([134.134.136.100]:62583 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932507AbcJURZW (ORCPT ); Fri, 21 Oct 2016 13:25:22 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,377,1473145200"; d="scan'208";a="22265748" Subject: Re: [RESEND PATCH v3 kernel 0/7] Extend virtio-balloon for fast (de)inflating & fast live migration To: Liang Li , mst@redhat.com References: <1477031080-12616-1-git-send-email-liang.z.li@intel.com> Cc: linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-mm@kvack.org, virtio-dev@lists.oasis-open.org, kvm@vger.kernel.org, qemu-devel@nongnu.org, quintela@redhat.com, dgilbert@redhat.com, pbonzini@redhat.com, cornelia.huck@de.ibm.com, amit.shah@redhat.com From: Dave Hansen Message-ID: <580A4F81.60201@intel.com> Date: Fri, 21 Oct 2016 10:25:21 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.8.0 MIME-Version: 1.0 In-Reply-To: <1477031080-12616-1-git-send-email-liang.z.li@intel.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 472 Lines: 10 On 10/20/2016 11:24 PM, Liang Li wrote: > Dave Hansen suggested a new scheme to encode the data structure, > because of additional complexity, it's not implemented in v3. So, what do you want done with this patch set? Do you want it applied as-is so that we can introduce a new host/guest ABI that we must support until the end of time? Then, we go back in a year or two and add the newer format that addresses the deficiencies that this ABI has with a third version?