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=-5.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 9F409C433E3 for ; Mon, 13 Jul 2020 11:05:00 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 6351320738 for ; Mon, 13 Jul 2020 11:05:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chrisdown.name header.i=@chrisdown.name header.b="RqGITRMK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6351320738 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chrisdown.name Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id EF2418D0002; Mon, 13 Jul 2020 07:04:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id EA15C8D0001; Mon, 13 Jul 2020 07:04:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D90668D0002; Mon, 13 Jul 2020 07:04:59 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0034.hostedemail.com [216.40.44.34]) by kanga.kvack.org (Postfix) with ESMTP id BF53F8D0001 for ; Mon, 13 Jul 2020 07:04:59 -0400 (EDT) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 5E4681F0A for ; Mon, 13 Jul 2020 11:04:59 +0000 (UTC) X-FDA: 77032770318.24.sink65_211225826ee7 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin24.hostedemail.com (Postfix) with ESMTP id 2C1A61A4A0 for ; Mon, 13 Jul 2020 11:04:59 +0000 (UTC) X-HE-Tag: sink65_211225826ee7 X-Filterd-Recvd-Size: 3482 Received: from mail-ed1-f68.google.com (mail-ed1-f68.google.com [209.85.208.68]) by imf24.hostedemail.com (Postfix) with ESMTP for ; Mon, 13 Jul 2020 11:04:58 +0000 (UTC) Received: by mail-ed1-f68.google.com with SMTP id a8so13160972edy.1 for ; Mon, 13 Jul 2020 04:04:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chrisdown.name; s=google; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=nN3m2m7pEWJxxgE22EVhuHKcD4TrCFPuvsPIp3KGX9k=; b=RqGITRMKNmMiYRdu6+vlFczkTYWFJp1c6+1yOC3ohAOzxc8vpAusqQEaQ0E2axiD3D QON4GHysm7Te5zUXV4Lz0GiISjc4xgU5T3b391ZpRcwJGbZ1amHXgAgqFQDjhLNJfgyG eX0sdzLY1TPzVvZ6Y5DHPyyoWITelQBhUSBaE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=nN3m2m7pEWJxxgE22EVhuHKcD4TrCFPuvsPIp3KGX9k=; b=NrlhyhShbtvIeF0oOPQo6G2+zaL/9V0jpsfHz3lfiTsbn9cMcSpTfkh3TBYfXrP3Y/ TupvFoFc1pV6ey4mtwtcJZ1hi4/6OmYHHLZ0eBomWzivr6VWOLGT0jIN+jN4SWo75H83 tmd/JpMEKUs1UtqBwnLXKgrlXXohUBOIi3gn6fM+uD2Xtv7Id7K78aKEy5o3ClaXH4yX JKtXk9jIItjBSUQ3YM0ZRu21b74Uj3FZOj45FvHLQ0tiAXybC7jZ75H/NmmkncYIa3eI AJJMM3pFYuYNDEWeOPlbBMWB9YV+nPwFppXSAckSh5YjVEBPLjK0HhkXts8uLbIVPYCu FxhA== X-Gm-Message-State: AOAM533aCaE9m3PT+NhfsHsQpF6wO5cR72a7FijmE9X4Hc05yod/lKwn SuYlTaIQYGV87UU/hqJ0Zz1gQw== X-Google-Smtp-Source: ABdhPJxJ/mazTAbJfCnV5ZLs6gKzw7Mb01cM+wDRYPldnGl3iBlU+mkR/ggy29bNiaIxfIFLSI4DFw== X-Received: by 2002:a50:b5e3:: with SMTP id a90mr50641671ede.381.1594638297371; Mon, 13 Jul 2020 04:04:57 -0700 (PDT) Received: from localhost ([2620:10d:c093:400::5:ef88]) by smtp.gmail.com with ESMTPSA id j21sm11395375edq.20.2020.07.13.04.04.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jul 2020 04:04:56 -0700 (PDT) Date: Mon, 13 Jul 2020 12:04:56 +0100 From: Chris Down To: Andrew Morton Cc: Johannes Weiner , Michal Hocko , Roman Gushchin , Yafang Shao , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 0/2] mm, memcg: memory.{low,min} reclaim fix & cleanup Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.14.5 (2020-06-23) X-Rspamd-Queue-Id: 2C1A61A4A0 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam03 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: 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. Changes in v4: - Fix premature OOM when checking protection on root memcg. Thanks Naresh and Michal for helping debug. 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 | 95 ++++++++++++++++++++++++++++++++------ mm/memcontrol.c | 36 ++++++--------- mm/vmscan.c | 20 +++----- 3 files changed, 103 insertions(+), 48 deletions(-) -- 2.27.0