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 X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4DC9C433DF for ; Sun, 17 May 2020 08:55:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B26E6206F4 for ; Sun, 17 May 2020 08:55:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727831AbgEQIzt (ORCPT ); Sun, 17 May 2020 04:55:49 -0400 Received: from elvis.franken.de ([193.175.24.41]:56357 "EHLO elvis.franken.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727799AbgEQIzs (ORCPT ); Sun, 17 May 2020 04:55:48 -0400 Received: from uucp (helo=alpha) by elvis.franken.de with local-bsmtp (Exim 3.36 #1) id 1jaF5B-0003F8-05; Sun, 17 May 2020 10:55:41 +0200 Received: by alpha.franken.de (Postfix, from userid 1000) id 7AA8AC04D6; Sun, 17 May 2020 10:43:00 +0200 (CEST) Date: Sun, 17 May 2020 10:43:00 +0200 From: Thomas Bogendoerfer To: Guoyun Sun Cc: Jiaxun Yang , Andrew Morton , Paul Burton , Daniel Silsby , Paul Cercueil , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] mips/mm: Add page soft dirty tracking Message-ID: <20200517084300.GF3939@alpha.franken.de> References: <1588149872-9780-1-git-send-email-sunguoyun@loongson.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1588149872-9780-1-git-send-email-sunguoyun@loongson.cn> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 29, 2020 at 04:44:32PM +0800, Guoyun Sun wrote: > User space checkpoint and restart tool (CRIU) needs the page's change > to be soft tracked. This allows to do a pre checkpoint and then dump > only touched pages. > > Signed-off-by: Guoyun Sun > --- > arch/mips/include/asm/pgtable-bits.h | 20 +++++++++++++-- > arch/mips/include/asm/pgtable.h | 48 ++++++++++++++++++++++++++++++++++-- > 2 files changed, 64 insertions(+), 4 deletions(-) applied to mips-next. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]