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=-9.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 3D1B1C433E5 for ; Tue, 21 Jul 2020 11:20:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id F2C4D20702 for ; Tue, 21 Jul 2020 11:20:13 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F2C4D20702 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 8E0E26B0005; 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Tue, 21 Jul 2020 11:20:10 +0000 (UTC) Received: from DGGEML404-HUB.china.huawei.com (unknown [172.30.72.56]) by Forcepoint Email with ESMTP id 9162C21CE0AE9FFC4EDC; Tue, 21 Jul 2020 19:20:01 +0800 (CST) Received: from DGGEML424-HUB.china.huawei.com (10.1.199.41) by DGGEML404-HUB.china.huawei.com (10.3.17.39) with Microsoft SMTP Server (TLS) id 14.3.487.0; Tue, 21 Jul 2020 19:20:01 +0800 Received: from DGGEML528-MBX.china.huawei.com ([169.254.7.143]) by dggeml424-hub.china.huawei.com ([10.1.199.41]) with mapi id 14.03.0487.000; Tue, 21 Jul 2020 19:19:52 +0800 From: jingrui To: "tj@kernel.org" , Lizefan , "hannes@cmpxchg.org" , "hannes@cmpxchg.org" , "mhocko@kernel.org" , "vdavydov.dev@gmail.com" CC: "akpm@linux-foundation.org" , "linux-mm@kvack.org" , "cgroups@vger.kernel.org" , "linux-kernel@vger.kernel.org" , caihaomin , "Weiwei (N)" Subject: PROBLEM: cgroup cost too much memory when transfer small files to tmpfs Thread-Topic: PROBLEM: cgroup cost too much memory when transfer small files to tmpfs Thread-Index: AdZfPbaDbBlN0uuzRT+WBs1zGYD4fAAETDVg Date: Tue, 21 Jul 2020 11:19:52 +0000 Message-ID: <2E04DD7753BE0E4ABABF0B664610AD6F2620CAF7@dggeml528-mbx.china.huawei.com> Accept-Language: en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.174.179.43] Content-Type: text/plain; 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