From patchwork Sat May 6 11:49:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?56iL5Z6y5rabIENoZW5na2FpdGFvIENoZW5n?= X-Patchwork-Id: 13233500 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 89A09C7EE2A for ; Sat, 6 May 2023 11:50:09 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 931EA6B007B; Sat, 6 May 2023 07:50:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8D0926B0080; Sat, 6 May 2023 07:50:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5758F6B007D; Sat, 6 May 2023 07:50:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mx6.didiglobal.com (mx6.didiglobal.com [111.202.70.123]) by kanga.kvack.org (Postfix) with SMTP id C90796B007B for ; Sat, 6 May 2023 07:50:07 -0400 (EDT) Received: from mail.didiglobal.com (unknown [10.79.71.35]) by mx6.didiglobal.com (Maildata Gateway V2.8) with ESMTPS id 4FDF311004C019; Sat, 6 May 2023 19:50:03 +0800 (CST) Received: from localhost.localdomain (10.79.64.102) by ZJY03-ACTMBX-05.didichuxing.com (10.79.71.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Sat, 6 May 2023 19:50:02 +0800 X-MD-Sfrom: chengkaitao@didiglobal.com X-MD-SrcIP: 10.79.71.35 From: chengkaitao To: , , , , , , , , , CC: , , , , , , , , , , , , , , , , , , , , , chengkaitao Subject: [PATCH v3 0/2] memcontrol: support cgroup level OOM protection Date: Sat, 6 May 2023 19:49:46 +0800 Message-ID: <20230506114948.6862-1-chengkaitao@didiglobal.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) MIME-Version: 1.0 X-Originating-IP: [10.79.64.102] X-ClientProxiedBy: ZJY01-PUBMBX-01.didichuxing.com (10.79.64.32) To ZJY03-ACTMBX-05.didichuxing.com (10.79.71.35) 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: Establish a new OOM score algorithm, supports the cgroup level OOM protection mechanism. When an global/memcg oom event occurs, we treat all processes in the cgroup as a whole, and OOM killers need to select the process to kill based on the protection quota of the cgroup Changelog: v3: * Add "auto" option for memory.oom.protect. (patch 1) * Fix division errors. (patch 1) * Add observation indicator oom_kill_inherit. (patch 2) v2: * Modify the formula of the process request memcg protection quota. https://lore.kernel.org/linux-mm/20221208034644.3077-1-chengkaitao@didiglobal.com/ v1: https://lore.kernel.org/linux-mm/20221130070158.44221-1-chengkaitao@didiglobal.com/ chengkaitao (2): mm: memcontrol: protect the memory in cgroup from being oom killed memcg: add oom_kill_inherit event indicator Documentation/admin-guide/cgroup-v2.rst | 29 ++++- fs/proc/base.c | 17 ++- include/linux/memcontrol.h | 46 +++++++- include/linux/oom.h | 3 +- include/linux/page_counter.h | 6 + mm/memcontrol.c | 199 ++++++++++++++++++++++++++++++++ mm/oom_kill.c | 25 ++-- mm/page_counter.c | 30 +++++ 8 files changed, 334 insertions(+), 21 deletions(-)