From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751038AbdIKHCd (ORCPT ); Mon, 11 Sep 2017 03:02:33 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:5581 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750954AbdIKHCc (ORCPT ); Mon, 11 Sep 2017 03:02:32 -0400 Message-ID: <59B634F3.3010004@huawei.com> Date: Mon, 11 Sep 2017 15:02:11 +0800 From: "Longpeng (Mike)" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:11.0) Gecko/20120327 Thunderbird/11.0.1 MIME-Version: 1.0 To: CC: , kvm , QEMU-DEV , "Huangweidong (C)" , "wangxin (U)" Subject: Question about the userfaultfd write-protect support Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.246.209] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090202.59B634FD.004D,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: e68f9852b8585174b941b229793a74a5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andrea, We've implemented a demo of KVM live memory snapshot based on the userfaultfd write-protect series in your private tree(https://git.kernel.org/pub/scm/linux/kernel/git/andrea/aa.git/log/). We did a little hack on that series to make the demo works. Zhang had discussed with you about this one or two years ago([1][2]), so do you have any plan to make this series upstream ? If you will, then what is the time schedule ? We really expect the userfaultfd write-protect series would be merged. :) References: [1] https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg00664.html [2] https://lists.nongnu.org/archive/html/qemu-devel/2014-11/msg02891.html -- Regards, Longpeng(Mike)