Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756414AbcJWL3c convert rfc822-to-8bit (ORCPT ); Sun, 23 Oct 2016 07:29:32 -0400 Received: from mga09.intel.com ([134.134.136.24]:37041 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750776AbcJWL3a (ORCPT ); Sun, 23 Oct 2016 07:29:30 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,388,1473145200"; d="scan'208";a="23024850" From: "Li, Liang Z" To: "Michael S. Tsirkin" , "Hansen, Dave" 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" Subject: RE: [RESEND PATCH v3 kernel 0/7] Extend virtio-balloon for fast (de)inflating & fast live migration Thread-Topic: [RESEND PATCH v3 kernel 0/7] Extend virtio-balloon for fast (de)inflating & fast live migration Thread-Index: AQHSK2WJC1hKfNkP2EaN2boMpmMvBaCyo0uAgAAm6YCAAxuxQA== Date: Sun, 23 Oct 2016 11:29:25 +0000 Message-ID: References: <1477031080-12616-1-git-send-email-liang.z.li@intel.com> <580A4F81.60201@intel.com> <20161021224428-mutt-send-email-mst@kernel.org> In-Reply-To: <20161021224428-mutt-send-email-mst@kernel.org> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiNzVjN2IyODMtYTQ1Zi00MjI2LWI4NDQtMWJmNGRhMTRlMzgwIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX0lDIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE1LjkuNi42IiwiVHJ1c3RlZExhYmVsSGFzaCI6ImFJS0p2ZWFoR3hSS2UrSmxhc3RRVktwaTdwNU1wVFVNdWJRU0tOM1h2Wjg9In0= x-ctpclassification: CTP_IC x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1190 Lines: 26 > On Fri, Oct 21, 2016 at 10:25:21AM -0700, Dave Hansen wrote: > > 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? > > > > Exactly my questions. Hi Dave & Michael, In the V2, both of you thought that the memory I allocated for the bitmap is too large, and gave some suggestions about the solution, so I changed the implementation and used scattered pages for the bitmap instead of a large physical continued memory. I didn't get the comments about the changes, so I am not sure whether that is OK or not, that's the why I resend the V3, I just want your opinions about that part. I will implement the new schema as Dave suggested in V4. Before that, could you take a look at this version and give some comments? Thanks! Liang