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=-0.8 required=3.0 tests=BAYES_00, CHARSET_FARAWAY_HEADER,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 87DA6C433E1 for ; Fri, 24 Jul 2020 09:35:45 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 527AE206D7 for ; Fri, 24 Jul 2020 09:35:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 527AE206D7 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 CC66A8D001E; Fri, 24 Jul 2020 05:35:44 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C4FC56B0033; Fri, 24 Jul 2020 05:35:44 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B17268D001E; Fri, 24 Jul 2020 05:35:44 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0148.hostedemail.com [216.40.44.148]) by kanga.kvack.org (Postfix) with ESMTP id 98E276B0032 for ; Fri, 24 Jul 2020 05:35:44 -0400 (EDT) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 40EEA40EE for ; Fri, 24 Jul 2020 09:35:44 +0000 (UTC) X-FDA: 77072462208.12.dress45_08143ac26f46 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin12.hostedemail.com (Postfix) with ESMTP id E1EC218002289 for ; Fri, 24 Jul 2020 09:35:41 +0000 (UTC) X-HE-Tag: dress45_08143ac26f46 X-Filterd-Recvd-Size: 2918 Received: from huawei.com (szxga02-in.huawei.com [45.249.212.188]) by imf12.hostedemail.com (Postfix) with ESMTP for ; Fri, 24 Jul 2020 09:35:41 +0000 (UTC) Received: from dggeml405-hub.china.huawei.com (unknown [172.30.72.53]) by Forcepoint Email with ESMTP id 7215ABB684234815DC6A; Fri, 24 Jul 2020 17:35:34 +0800 (CST) Received: from DGGEML528-MBX.china.huawei.com ([169.254.7.143]) by dggeml405-hub.china.huawei.com ([10.3.17.49]) with mapi id 14.03.0487.000; Fri, 24 Jul 2020 17:35:26 +0800 From: jingrui To: Michal Hocko CC: "tj@kernel.org" , Lizefan , "hannes@cmpxchg.org" , "vdavydov.dev@gmail.com" , "akpm@linux-foundation.org" , "linux-mm@kvack.org" , "cgroups@vger.kernel.org" , "linux-kernel@vger.kernel.org" , caihaomin , "Weiwei (N)" Subject: =?gb2312?B?tPC4tDogUFJPQkxFTTogY2dyb3VwIGNvc3QgdG9vIG11Y2ggbWVtb3J5IHdo?= =?gb2312?Q?en_transfer_small_files_to_tmpfs?= Thread-Topic: PROBLEM: cgroup cost too much memory when transfer small files to tmpfs Thread-Index: AdZfPbaDbBlN0uuzRT+WBs1zGYD4fAAETDVgAH9ylAAAE+ehUA== Date: Fri, 24 Jul 2020 09:35:26 +0000 Message-ID: <2E04DD7753BE0E4ABABF0B664610AD6F2620D4F6@dggeml528-mbx.china.huawei.com> References: <2E04DD7753BE0E4ABABF0B664610AD6F2620CAF7@dggeml528-mbx.china.huawei.com> <20200724075508.GF4061@dhcp22.suse.cz> In-Reply-To: <20200724075508.GF4061@dhcp22.suse.cz> 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; charset="gb2312" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Rspamd-Queue-Id: E1EC218002289 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam01 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: DQpPbiBGcmlkYXksIEp1bHkgMjQsIDIwMjAgMzo1NSBQTSwgTWljaGFsIEhvY2tvIHdyb3RlOg0K DQo+IFdoYXQgaXMgdGhlIHJlYXNvbiB0byBydW4gdW5kZXIgIXJvb3QgY2dyb3VwIGluIHRob3Nl IHNlc3Npb25zIGlmIHlvdSBkbyBub3QgY2FyZSBhYm91dCBhY2NvdW50aW5nIGFueXdheT8gDQoN ClRoZSBzeXN0ZW1kIG5vdCBzdXBwb3J0IHJ1biB0aG9zZSBzZXNzaW9ucyB1bmRlciByb290IGNn cm91cCwgZGlzYWJsZQ0KcGFtLXN5c3RlbWQgd2lsbCBub3QgY3JlYXRlIHNlc3Npb24vY2dyb3Vw LCBidXQgdGhpcyBpcyBub3Qgc2FmZSBhbmQgbWFrZQ0Kc3lzdGVtZC1sb2dpbmQgbm90IHdvcmsu DQoNCj4gdG1wZnMgaXMgYSBwZXJzaXN0ZW50IGNoYXJnZSB1bnRpbCB0aGUgZmlsZSBpcyByZW1v dmVkLiBTbyBpZiB0aG9zZSBvdXRsaXZlIHRoZSBzZXNzaW9uIHRoZW4geW91IGVpdGhlciB3YW50 IHRoZW0gdG8gYmUgY2hhcmdlZCB0byBzb21lYm9keSBvciB5b3UgZG8gbm90IGNhcmUgYWJvdXQg YWNjb3VudGluZyBhdCBhbGwsIG5vPyBPciBjb3VsZCB5b3UgZXhwbGFpbiB5b3VyIHVzZWNhc2Ug c29tZSBtb3JlPw0KDQpJbiBzb21lIHVzZWNhc2UsIHdlIGRvbnQgaGF2ZSBkaXNrIGFuZCBrZWVw IGZpbGVzIGluIG1lbW9yeSwgd2UgdHJlYXQgdG1wZnMNCmp1c3QgbGlrZSBkaXNrLCBzbyBkb250 IGNhcmUgdG1wZnMgYWNjb3V0aW5nIGF0IGFsbC4NCg0KLS0NCkppbmdydWkNCkJSLg0K