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=-3.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=no 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 CDFFAC3A5A9 for ; Sat, 2 May 2020 13:59:42 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 8FAD321775 for ; Sat, 2 May 2020 13:59:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IlSXYX8Z" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8FAD321775 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 1FBA98E0005; Sat, 2 May 2020 09:59:42 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1AC538E0001; Sat, 2 May 2020 09:59:42 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 074858E0005; Sat, 2 May 2020 09:59:42 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0183.hostedemail.com [216.40.44.183]) by kanga.kvack.org (Postfix) with ESMTP id E06A08E0001 for ; Sat, 2 May 2020 09:59:41 -0400 (EDT) Received: from smtpin17.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 90C2B248E for ; Sat, 2 May 2020 13:59:41 +0000 (UTC) X-FDA: 76771936962.17.tin01_8ecf050a3743e X-HE-Tag: tin01_8ecf050a3743e X-Filterd-Recvd-Size: 3432 Received: from mail-pf1-f195.google.com (mail-pf1-f195.google.com [209.85.210.195]) by imf02.hostedemail.com (Postfix) with ESMTP for ; Sat, 2 May 2020 13:59:41 +0000 (UTC) Received: by mail-pf1-f195.google.com with SMTP id x2so2999695pfx.7 for ; Sat, 02 May 2020 06:59:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=YyjE7Ma1oFPiC+G8bLex+Ot/iTQcb90IfhmSUUT0HbE=; b=IlSXYX8ZvAnQrHfpc8f/khz1v5aZAeHlcjmlHlSzezHxQdU+HR4TO+sBAlFA97et2v +Q8D0RzYXsJ/4aH1R7NReERe9GaZCPiFijmSEmqqW7Nxikpd41WMtJQhw/Sxfd99y9EI W07kayvye0rNHdn7j/XL79Z1mnIm32zEcn9o1j+TSplQnX2Udlue9DQa1bHbbCv96Ird wTwQJpxyxVfDZAFrP3xUr+DeG14MwjZ7ePvrM/GPtasJniHJXdWdaCJ66tBM0ayiC5YQ KG9rm1gsKnpGtTzktor774dqZ3Ad8vLvzWSc2QWuJa0IKicj49e8udYRvsG0m/LwulM3 rWpQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=YyjE7Ma1oFPiC+G8bLex+Ot/iTQcb90IfhmSUUT0HbE=; b=puTC/j2bOtv24xkt+MzVi4BC59AId5xN9tSNaZZ8hooOfUL/1u1Oybo3YE1kSgbk9F yo8cbSbPb6Nly+iPMZBqX2f0edVWnlUNClhyhUp4IksoSez1xttoUiqXCwqru4RxwrMK wJa8YfFbXhZlnJfdQ1L4dMEgtPIfmOTfa30Bsp9UPXW+PkhUzZYzrjM3nIoMBJm+zNSN KA8GBl9jEffRSMmV/imC0FlTXA64tqZMJgueJFVXLyulHF8I/i38FmPM6+XyA52qGMRW J2UdJLIVMH2u5uQEfi8PwqQgKgtyg54whbTuMxmNN7h1ADNRJE4R3J7Vqw6LMmuUwr2m 8S9A== X-Gm-Message-State: AGi0PuYvthi7odTDxzr/0sZimTNpydbXIqwThvlXWz8GhDjtoa0cYUuT rnR4QF86Hio5Lq7BkR8KEQI= X-Google-Smtp-Source: APiQypKTwuxyIEgUaemM62YAzPar5p2lYA3WPgT+YOib2grSqcq2hIzr6wZO6HfzFUbalFUu3/6+LQ== X-Received: by 2002:a63:f145:: with SMTP id o5mr9270885pgk.325.1588427980348; Sat, 02 May 2020 06:59:40 -0700 (PDT) Received: from localhost.localdomain ([203.100.54.194]) by smtp.gmail.com with ESMTPSA id i11sm4145708pgi.1.2020.05.02.06.59.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 May 2020 06:59:39 -0700 (PDT) From: Yafang Shao To: akpm@linux-foundation.org Cc: mhocko@kernel.org, hannes@cmpxchg.org, chris@chrisdown.name, guro@fb.com, linux-mm@kvack.org, Yafang Shao Subject: [PATCH v2 0/2] mm: memcontrol: memory.{low,min} reclaim fix & cleanup Date: Sat, 2 May 2020 09:59:08 -0400 Message-Id: <20200502135910.7255-1-laoar.shao@gmail.com> X-Mailer: git-send-email 2.18.1 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000047, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This series contains a fix for a edge case in my earlier protection calculation patches, and a patch to make the area overall a little more robust to hopefully help avoid this in future. [chris@chrisdown.name: commit log above] Changes since v1: work around the stale protection values in mem_cgroup_protection(), rather than in mem_cgroup_protected(). Chris Down (1): mm, memcg: Decouple e{low,min} state mutations from protection checks Yafang Shao (1): mm, memcg: Avoid stale protection values when cgroup is above protection include/linux/memcontrol.h | 85 ++++++++++++++++++++++++++++++++------ mm/memcontrol.c | 36 +++++++--------- mm/vmscan.c | 20 +++------ 3 files changed, 93 insertions(+), 48 deletions(-) -- 2.18.2