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=-8.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT 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 DC41FC31E48 for ; Wed, 12 Jun 2019 21:57:19 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id AB80820B7C for ; Wed, 12 Jun 2019 21:57:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AB80820B7C 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 3E5E26B000D; Wed, 12 Jun 2019 17:57:18 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 31E826B0266; Wed, 12 Jun 2019 17:57:18 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 197B76B0269; Wed, 12 Jun 2019 17:57:18 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mail-pl1-f199.google.com (mail-pl1-f199.google.com [209.85.214.199]) by kanga.kvack.org (Postfix) with ESMTP id CCF746B000D for ; Wed, 12 Jun 2019 17:57:17 -0400 (EDT) Received: by mail-pl1-f199.google.com with SMTP id b24so10578214plz.20 for ; Wed, 12 Jun 2019 14:57:17 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-original-authentication-results:x-gm-message-state:from:to:cc :subject:date:message-id:in-reply-to:references; bh=4kJ5Q4DCdZWctI1HwEx678LwDtYH2kVuCUx2wAqJGFE=; b=L3CAou3SVWOXgXb0Sz9Sl9Y//bqaft3bSfQeFubcI5Lbx6Rx4h6jrGYAS/ArPQ1JNn I7JpNPqNIQyIJOyy1hpP7aBpxruprx7YxWUy4KyqeRIJe20jQVNIiKtK5lsFP7PtFAw2 YdVPlyMh45q0r1e+WCcYO0vZNHJcdMZJnUJ011hhqTJfgmxXQuBL6Ftizk62eykfmqOe 8Rtet7p9bSs3FL9Z6LP+INGsHAAfpnx8/tceD299Puw+s/Tn6cRYxmPcAeO22FbnMHRY VXN6YhKOakJ10Txul+DZexW9Fd50bUZh6IUZeoYAmOxnBvSQx8KqQJtNYB92zt9B0BY+ y5Zg== X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of yang.shi@linux.alibaba.com designates 115.124.30.57 as permitted sender) smtp.mailfrom=yang.shi@linux.alibaba.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alibaba.com X-Gm-Message-State: APjAAAWV84FQC0SOX+cL8X5kArrtNJaQXFPW4DwNH0P6ER9mRJ+t7SGs Bs/SmT8eAPGeBrsp78QmSUIMyKL+tbIcMLwr1CMBJntv39M+RDdIVznOaREK3zYG188evfvi2ur cVin6bk8z1TPWFKmUEwv+wDv4pRLKC0o+vLxhUGL1liS0ukCW6Yq+WFjB0HUYwWyctA== X-Received: by 2002:a17:90a:5d15:: with SMTP id s21mr1290373pji.126.1560376637467; Wed, 12 Jun 2019 14:57:17 -0700 (PDT) X-Google-Smtp-Source: APXvYqzVfRQxhJ7pSepqggSIW2uiOA1I3JE/aBEBOCdIakKFmal7aWT7YumS5TXPiHQzbcIQ8ds/ X-Received: by 2002:a17:90a:5d15:: with SMTP id s21mr1290321pji.126.1560376636386; Wed, 12 Jun 2019 14:57:16 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560376636; cv=none; d=google.com; s=arc-20160816; b=Y1towDrZB69ow/w+Ifg6YcMhhNFyI39RkJvVMURLU8nYQcFFdvc8cijR62Hh8rdqhG nBo1Rcf8H0f4TrkHeTWMlRKwHhDPx+c1S/pIdKQDaLFreVWiWk8Fws7zW4xbrvOuo1hn qO9E3VFdNmnZFLRiBbtmSyL1Z4Y8XYtLy5bbeBt+7YtDjquOVle5T2rcB/GQZ/hAZ4MM ZsGXSk0SZOoRVi8ycSIp9eAtCdUSw1MvYz5rv2jYpMWf65oR+ButSxaHXfwr5GwlFsh+ wXdFHY6py3SZLqbdhW2I7x2mHEqARUPcpjr1w9iN/cUlhM+ELAXHiRBSKiKRJjumvUiK DrYg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from; bh=4kJ5Q4DCdZWctI1HwEx678LwDtYH2kVuCUx2wAqJGFE=; b=YV2LOHQQ0RWURgI3czPSwL1iljsKq5QIfwqccY56/KzZGA6k+28Y/z6nfLcO23TFgi ZWdEwuObgSQE2b3i7FaBKllwnnfVMCLNslvbuaXn1JaFUTSbKPcSR5g8n13RCPGXh2o9 W5DDH0E0umx7Q5Mxg+tU600B0D66mynr5nG8s1AszNBRy+qaQermSRPdeaIiompDBSDe Fj1/KnRNJsFVlbSqY7L8gSzEBKl8C0xR9dUnautlCTSG9Jdvf/+okjyBugxCEWtPFNd3 rsJLC1Ede4NuKjXSa6XoeHUSu5zy5C4JinuK7jMs3RoM1xMxJy8Y0h6AYTJHdlUocOgM HVXQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of yang.shi@linux.alibaba.com designates 115.124.30.57 as permitted sender) smtp.mailfrom=yang.shi@linux.alibaba.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: from out30-57.freemail.mail.aliyun.com (out30-57.freemail.mail.aliyun.com. [115.124.30.57]) by mx.google.com with ESMTPS id c14si806317pjr.51.2019.06.12.14.57.15 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 12 Jun 2019 14:57:16 -0700 (PDT) Received-SPF: pass (google.com: domain of yang.shi@linux.alibaba.com designates 115.124.30.57 as permitted sender) client-ip=115.124.30.57; Authentication-Results: mx.google.com; spf=pass (google.com: domain of yang.shi@linux.alibaba.com designates 115.124.30.57 as permitted sender) smtp.mailfrom=yang.shi@linux.alibaba.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alibaba.com X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R161e4;CH=green;DM=||false|;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e07487;MF=yang.shi@linux.alibaba.com;NM=1;PH=DS;RN=11;SR=0;TI=SMTPD_---0TU0Hbt._1560376624; Received: from e19h19392.et15sqa.tbsite.net(mailfrom:yang.shi@linux.alibaba.com fp:SMTPD_---0TU0Hbt._1560376624) by smtp.aliyun-inc.com(127.0.0.1); Thu, 13 Jun 2019 05:57:14 +0800 From: Yang Shi To: ktkhai@virtuozzo.com, kirill.shutemov@linux.intel.com, hannes@cmpxchg.org, mhocko@suse.com, hughd@google.com, shakeelb@google.com, rientjes@google.com, akpm@linux-foundation.org Cc: yang.shi@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [v3 PATCH 2/4] mm: move mem_cgroup_uncharge out of __page_cache_release() Date: Thu, 13 Jun 2019 05:56:47 +0800 Message-Id: <1560376609-113689-3-git-send-email-yang.shi@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1560376609-113689-1-git-send-email-yang.shi@linux.alibaba.com> References: <1560376609-113689-1-git-send-email-yang.shi@linux.alibaba.com> 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: The later patch would make THP deferred split shrinker memcg aware, but it needs page->mem_cgroup information in THP destructor, which is called after mem_cgroup_uncharge() now. So, move mem_cgroup_uncharge() from __page_cache_release() to compound page destructor, which is called by both THP and other compound pages except HugeTLB. And call it in __put_single_page() for single order page. Suggested-by: "Kirill A . Shutemov" Cc: Kirill Tkhai Cc: Johannes Weiner Cc: Michal Hocko Cc: Hugh Dickins Cc: Shakeel Butt Cc: David Rientjes Signed-off-by: Yang Shi --- mm/page_alloc.c | 1 + mm/swap.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index a82104a..7f27f4e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -623,6 +623,7 @@ static void bad_page(struct page *page, const char *reason, void free_compound_page(struct page *page) { + mem_cgroup_uncharge(page); __free_pages_ok(page, compound_order(page)); } diff --git a/mm/swap.c b/mm/swap.c index 3a75722..982bd79 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -70,12 +70,12 @@ static void __page_cache_release(struct page *page) spin_unlock_irqrestore(&pgdat->lru_lock, flags); } __ClearPageWaiters(page); - mem_cgroup_uncharge(page); } static void __put_single_page(struct page *page) { __page_cache_release(page); + mem_cgroup_uncharge(page); free_unref_page(page); } -- 1.8.3.1