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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,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 2DE8CC2BA19 for ; Tue, 21 Apr 2020 09:14:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 143B620857 for ; Tue, 21 Apr 2020 09:14:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728475AbgDUJOB (ORCPT ); Tue, 21 Apr 2020 05:14:01 -0400 Received: from out30-57.freemail.mail.aliyun.com ([115.124.30.57]:35615 "EHLO out30-57.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726018AbgDUJOA (ORCPT ); Tue, 21 Apr 2020 05:14:00 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R181e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01358;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=11;SR=0;TI=SMTPD_---0TwDlbjE_1587460437; Received: from IT-FVFX43SYHV2H.local(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0TwDlbjE_1587460437) by smtp.aliyun-inc.com(127.0.0.1); Tue, 21 Apr 2020 17:13:58 +0800 Subject: Re: [PATCH 06/18] mm: memcontrol: prepare uncharging for removal of private page type counters To: Johannes Weiner , Joonsoo Kim Cc: Shakeel Butt , Hugh Dickins , Michal Hocko , "Kirill A. Shutemov" , Roman Gushchin , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@fb.com References: <20200420221126.341272-1-hannes@cmpxchg.org> <20200420221126.341272-7-hannes@cmpxchg.org> From: Alex Shi Message-ID: <20065063-d508-5bb9-572e-ebcb2e41cf85@linux.alibaba.com> Date: Tue, 21 Apr 2020 17:12:51 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20200420221126.341272-7-hannes@cmpxchg.org> Content-Type: text/plain; charset=gbk Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ÔÚ 2020/4/21 ÉÏÎç6:11, Johannes Weiner дµÀ: > The uncharge batching code adds up the anon, file, kmem counts to > determine the total number of pages to uncharge and references to > drop. But the next patches will remove the anon and file counters. > > Maintain an aggregate nr_pages in the uncharge_gather struct. > > Signed-off-by: Johannes Weiner Reviewed-by: Alex Shi