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[23.128.96.18]) by mx.google.com with ESMTP id by9si185627edb.241.2020.07.24.02.36.38; Fri, 24 Jul 2020 02:37:00 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726942AbgGXJfh (ORCPT + 99 others); Fri, 24 Jul 2020 05:35:37 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:2587 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726114AbgGXJfg (ORCPT ); Fri, 24 Jul 2020 05:35:36 -0400 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 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DQpPbiBGcmlkYXksIEp1bHkgMjQsIDIwMjAgMzo1NSBQTSwgTWljaGFsIEhvY2tvIHdyb3RlOg0K DQo+IFdoYXQgaXMgdGhlIHJlYXNvbiB0byBydW4gdW5kZXIgIXJvb3QgY2dyb3VwIGluIHRob3Nl IHNlc3Npb25zIGlmIHlvdSBkbyBub3QgY2FyZSBhYm91dCBhY2NvdW50aW5nIGFueXdheT8gDQoN ClRoZSBzeXN0ZW1kIG5vdCBzdXBwb3J0IHJ1biB0aG9zZSBzZXNzaW9ucyB1bmRlciByb290IGNn cm91cCwgZGlzYWJsZQ0KcGFtLXN5c3RlbWQgd2lsbCBub3QgY3JlYXRlIHNlc3Npb24vY2dyb3Vw LCBidXQgdGhpcyBpcyBub3Qgc2FmZSBhbmQgbWFrZQ0Kc3lzdGVtZC1sb2dpbmQgbm90IHdvcmsu DQoNCj4gdG1wZnMgaXMgYSBwZXJzaXN0ZW50IGNoYXJnZSB1bnRpbCB0aGUgZmlsZSBpcyByZW1v dmVkLiBTbyBpZiB0aG9zZSBvdXRsaXZlIHRoZSBzZXNzaW9uIHRoZW4geW91IGVpdGhlciB3YW50 IHRoZW0gdG8gYmUgY2hhcmdlZCB0byBzb21lYm9keSBvciB5b3UgZG8gbm90IGNhcmUgYWJvdXQg YWNjb3VudGluZyBhdCBhbGwsIG5vPyBPciBjb3VsZCB5b3UgZXhwbGFpbiB5b3VyIHVzZWNhc2Ug c29tZSBtb3JlPw0KDQpJbiBzb21lIHVzZWNhc2UsIHdlIGRvbnQgaGF2ZSBkaXNrIGFuZCBrZWVw IGZpbGVzIGluIG1lbW9yeSwgd2UgdHJlYXQgdG1wZnMNCmp1c3QgbGlrZSBkaXNrLCBzbyBkb250 IGNhcmUgdG1wZnMgYWNjb3V0aW5nIGF0IGFsbC4NCg0KLS0NCkppbmdydWkNCkJSLg0K