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, 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 A8470C2BA19 for ; Tue, 21 Apr 2020 09:14:29 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 80FDC20857 for ; Tue, 21 Apr 2020 09:14:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 80FDC20857 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 2FECA8E0005; Tue, 21 Apr 2020 05:14:29 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 2B01E8E0003; Tue, 21 Apr 2020 05:14:29 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1ED348E0005; Tue, 21 Apr 2020 05:14:29 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 0559E8E0003 for ; Tue, 21 Apr 2020 05:14:29 -0400 (EDT) Received: from smtpin27.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id C8F4BB9E3 for ; Tue, 21 Apr 2020 09:14:28 +0000 (UTC) X-FDA: 76731301416.27.shelf18_441f171995104 X-HE-Tag: shelf18_441f171995104 X-Filterd-Recvd-Size: 2022 Received: from out4436.biz.mail.alibaba.com (out4436.biz.mail.alibaba.com [47.88.44.36]) by imf15.hostedemail.com (Postfix) with ESMTP for ; Tue, 21 Apr 2020 09:14:27 +0000 (UTC) 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: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: =D4=DA 2020/4/21 =C9=CF=CE=E76:11, Johannes Weiner =D0=B4=B5=C0: > 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. >=20 > Maintain an aggregate nr_pages in the uncharge_gather struct. >=20 > Signed-off-by: Johannes Weiner Reviewed-by: Alex Shi