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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85A40C433F5 for ; Mon, 25 Apr 2022 14:16:57 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 04C676B0074; Mon, 25 Apr 2022 10:16:57 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id F3D7B6B0075; Mon, 25 Apr 2022 10:16:56 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D91FA6B0078; Mon, 25 Apr 2022 10:16:56 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.27]) by kanga.kvack.org (Postfix) with ESMTP id CA8FF6B0074 for ; Mon, 25 Apr 2022 10:16:56 -0400 (EDT) Received: from smtpin06.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id AC3D421CA7 for ; Mon, 25 Apr 2022 14:16:56 +0000 (UTC) X-FDA: 79395602832.06.964351C Received: from JPN01-TYC-obe.outbound.protection.outlook.com (mail-tycjpn01on2072.outbound.protection.outlook.com [40.107.114.72]) by imf20.hostedemail.com (Postfix) with ESMTP id 3A4611C0053 for ; Mon, 25 Apr 2022 14:16:53 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=khuqwoKz77apSLm1KVHmzR0nRpE7wlg1tcUUSgwwzNdp2O+Nt4/AqVZ467PNfFOXYbWJwbLC8DsRB1GC77v6u8IghTHS2J9IHBI0wwazx+P1iptW2W/Np3MmP6EGdFBlZTYuGQMlnjWtEI4/e1uplK7w+O2RoAMurBgiXp7e3ltTGPt+Gm9dxAIlyw9zMKwhkaFRRM7ysACxfT8tkiTYWI/MGKjJA/KesWsXOKnnKkKyFl7+Y0KEhE1/ELpOHu1vFkCgFiBML76mM4QJ6b59Au3Zw5ExRdMDc5OajDmnm4Xb7YZIgN0LE8swzY1+Wjjc023kLBxeHp3590LfyVXr8w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=NTzjUKC7F2tYEmWGuXGRAedwF+D32jHURRLVM0YZ1lA=; b=NT157PhDmzhrmcQisoROV4Xiy1FYNTCWucMURgYoW6zuNs4luaCWrlbjpjyXw6qe4EGMBZnPqO1VBVa9U8Tfhh9g5RiV9htI4foLzFCXtv/RgJ2iEP9Wzkc33BkYUBY7MNU+IsccJJhUW9VKsMeKbkSMx44oQOE3W0H85MxzJZn1jSmxiCwdDpupgIdxoh+jRQWqpZwr9kTt2mq/GVw8N8CzRXj3q34wfNJLFGWB7UId8ZziLTh/7vtDv9P1u6jjm751NICHp5W6gfOwKxKUy0sC6/KGcp6e/ZeT4p7PLuq5+BzTrJSnbzDwKdK0LvOCxV4O3+IcU+oFI5E9Y6oP6w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nec.com; dmarc=pass action=none header.from=nec.com; dkim=pass header.d=nec.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nec.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=NTzjUKC7F2tYEmWGuXGRAedwF+D32jHURRLVM0YZ1lA=; b=mFQxhpIjpGfrSVfmyQtzrrwBh/pk57W5Ap/yUUHKgGffyMn4bZMkEn8+ZR4YL7d/pZgFcpYRypXPNzhFU1f1JNf73wIRNM5wXRc/H58fjxypGeduEaiBgHjhEpmzbclIkbPCmQ7MDfY2QaAMptcYp/4MSSVMMA8UuTMZ45642xo= Received: from TYWPR01MB8591.jpnprd01.prod.outlook.com (2603:1096:400:13c::10) by OSAPR01MB4595.jpnprd01.prod.outlook.com (2603:1096:604:69::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5186.15; Mon, 25 Apr 2022 14:16:50 +0000 Received: from TYWPR01MB8591.jpnprd01.prod.outlook.com ([fe80::e58f:5f3b:6d28:b245]) by TYWPR01MB8591.jpnprd01.prod.outlook.com ([fe80::e58f:5f3b:6d28:b245%4]) with mapi id 15.20.5186.021; Mon, 25 Apr 2022 14:16:50 +0000 From: =?utf-8?B?SE9SSUdVQ0hJIE5BT1lBKOWggOWPo+OAgOebtOS5nyk=?= To: Yu Xu CC: "linux-mm@kvack.org" , Yang Shi , David Hildenbrand , "anshuman.khandual@arm.com" , "akpm@linux-foundation.org" , "linmiaohe@huawei.com" , "osalvador@suse.de" Subject: Re: [PATCH v2] mm/memory-failure.c: skip huge_zero_page in memory_failure() Thread-Topic: [PATCH v2] mm/memory-failure.c: skip huge_zero_page in memory_failure() Thread-Index: AQHYVsCA1CCtzIGOAEeb+khJEA7KOK0AsLOA Date: Mon, 25 Apr 2022 14:16:50 +0000 Message-ID: <20220425141649.GB3767079@hori.linux.bs1.fc.nec.co.jp> References: <497d3835612610e370c74e697ea3c721d1d55b9c.1649775850.git.xuyu@linux.alibaba.com> <8e1a882c-8568-57f2-216a-703f220e0e3f@linux.alibaba.com> In-Reply-To: <8e1a882c-8568-57f2-216a-703f220e0e3f@linux.alibaba.com> Accept-Language: ja-JP, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: b364c755-536b-40e8-0844-08da26c63d67 x-ms-traffictypediagnostic: OSAPR01MB4595:EE_ x-microsoft-antispam-prvs: x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:TYWPR01MB8591.jpnprd01.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(4636009)(366004)(6512007)(26005)(86362001)(55236004)(71200400001)(6506007)(38100700002)(38070700005)(82960400001)(4326008)(54906003)(316002)(6916009)(8676002)(66946007)(66476007)(66556008)(76116006)(66446008)(508600001)(2906002)(64756008)(9686003)(8936002)(85182001)(4744005)(6486002)(5660300002)(1076003)(186003)(33656002)(122000001)(14583001);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?NDYyK1lmOEVhTjJsMmUrSVQ2b0FIcVZnaEpmWUxPWCtscWtKdW5qdG1yQVpJ?= =?utf-8?B?V2RUNk5ETjFFUytleXUwanFGdnNaelEybkx5K0doeFI5VnBxd0F5bFU0YWxV?= =?utf-8?B?Zk5QSWZKckp4eFNaQ0tDaW9pS2o2cFFJUEV3QW5IcTJxZjg0Sk83YmNqU3Vm?= =?utf-8?B?Y2tSa0V5RTlNNUlrWnF4SjUxQ0FXTlY1TUoxQ3hwbXBVQUhDMDdtekdoQTda?= =?utf-8?B?amM1bEZBeVBhdEpwSXBnNmVNallEeUwwSklWejRNSmtnR1BacHMxRFNDOUZy?= =?utf-8?B?aU90dUMrSDNLc25HcjhuTmZGL0lyUlFJUWp1cTZHRzlFSERUYUdWK09VRE5K?= =?utf-8?B?OTAwNUpQai9MUmNnWnE3UzRzbEhCZi9jTTA4dEhESjl4MjVVdVBRMzR6YTZ0?= =?utf-8?B?RzlkV1M4UVlHTmNZMzM5c05hdnYyY3JqQmtWTG1VeTFQSEZzSkUyNGFmTGFC?= =?utf-8?B?c2FkZVF5SVFPVzN0RmJ4ZDR1bXZ0S253ZENCUmlFMXZYK3h6OFUvR25lSytJ?= =?utf-8?B?c2FvNk8vd1BZTFVrOGFNL21tNjlVb01IQ2krREwrdUdyUEtCanU1T1VMN2da?= =?utf-8?B?R1hiZTRxaHJ1YnZWREpUeGZmeW9YWUljRkE1bzFxb1hwQjd5Rk02b0pUaGo3?= =?utf-8?B?dGIyYTdNL3lLQWN6SDIvV2lRVHF1V21VUjUvV0w3Ty9DdThXQUlPQlNLQ3ND?= =?utf-8?B?SmU1cHM4UVd0djRZL05RdEFpTzBvNG1MZmp4TFBGbG5sTnNxdFdNR0YzVWo5?= =?utf-8?B?Q2lveUFwL2t5SEliT3ljODRiL1VXTVRWdm51UW4yaXlLYXpJN0NIVUxPenFZ?= =?utf-8?B?VlM1aW04Z1o2cWxtTTN3cDNhMENTVzlaMTMvUUxCa1AzanlGN1ByVFB2TmZI?= =?utf-8?B?R1d3N3NLeFgzd05ON2hUZ1VqNndKR0QyTmgzTFByc1N0UWF3bDd5cjJCMUlU?= =?utf-8?B?eGtJTmxTTHUwV3Q5YlB1TWdkdjhQZ1JYV2xjZzlBczRQbnhySXpveU1DR3FW?= =?utf-8?B?MnRJZ08wNkhzUW4vN0tySFFKUEIxYTlFbzgrbzB0cXpGVkw3QU1hejljY1ZY?= =?utf-8?B?aUJnOCs1WkV4SktrWktqTXZXRlY4TjQxSm52OC9QYWVDdE0yZHBmTnBvWUxu?= =?utf-8?B?THJTZUpHZjlFb2FDTmkxSzZIZHlmWDdpdWlheGlsNzVQcDBBUCs2VHV1ait4?= =?utf-8?B?UE9KTVZuQ25IbWliL01uNnhOUXEveEhDaTJHZzl5RldjVXVTOUlLMGN3TmV3?= =?utf-8?B?NHJZSCtmajF1SUc1eE1PS0RrSDYwUXNFVzRaNEUreDNjZFFQQzVmdVp0SDRI?= =?utf-8?B?bFo5VUtFZVVXN1Vha3d0eGFlaUpOV2NPb3NJZWlHem1HQ3Q3T0k3cDFmclpt?= =?utf-8?B?TUtxTXBFWGpkdGlPais2bFVuaExpY3AwcDJFM0xVZ0hGeTl1ZGRId1hNNnBp?= =?utf-8?B?ODJVM1FxRmNnRjRDWmpaWXQrVnB2WFhkY0NEb05XbW1DT2JJNVBTNDU4SnAy?= =?utf-8?B?Zk1CSTdoMzVKU3V4UDdCUktZa2RZTTRuM3BnemFpZUl2eWVuV1JYdmEwRHRQ?= =?utf-8?B?bTUxNWlaS1NkSEZKUlJ1UnRKelRHOUEvZlFhc3FyRXE0NHRKMnFFVGJGeDUz?= =?utf-8?B?RDd0MzRMMjV3WUVKckV5eUdwalQxaUtUS1BOaENtU01ndk9nMjZPUERybm9R?= =?utf-8?B?YllOMWtYUE1nUXJ0RTN4V08xUnorYmJKQnRHQkhvaGVrTGxHSEt4Z1VYdnpC?= =?utf-8?B?WVJvQk1rbkd0VnEvNTBhQ2VUcnZlY2ZjcDhmUlFjcTErREJ2VnU4N0NKRjA4?= =?utf-8?B?NjVwbHF5QnpJQXAzQ2VFL2l3ZnZyRHIrcXRvWHBZQjdXRC8rSHFLUFdCbWZC?= =?utf-8?B?WDBWV2grTDBYaklIN0ozYWNyUW55UXYwbU1WaFVsS2dONlYxcC9GNkVxR3dO?= =?utf-8?B?VCttZncwUytVZFJ3NFA3akpGaWtlSHV2N05mdDlQNTcxbGJLNFlvNXlYb05B?= =?utf-8?B?ZVdOdjNJb1YxL3lHSTJyVXVYRjZJZEZETEZGQzltTExacXN1WTREYW9YRC84?= =?utf-8?B?UWZSeFU0M2hjNVBBeDlORGxqeDRZVkI1N0EwNk5uaDRXb0V5dmNsRWVORVFZ?= =?utf-8?B?TkducVh2c3ZQdkU4aHd3aEFrNDJlL1NkM1ZpeUROWlNGaWowUFkrL1hiYXFS?= =?utf-8?B?Tit1MmJKcThkTzlZcEsvTkEza245MEZaTjVhWlYyWE9LNllRd0poejlVREw2?= =?utf-8?B?aHBTWWlZT2FJUC9CL0xibE5mRFdmMjh0aCtRWmhWaVVXN3VTN0l1SVlyOXk1?= =?utf-8?B?NUJBQlcwbTg2SEVCVGZXanAxNElXc0NxSC9rVWNyd3BoSUx0TklWbnF1dGho?= =?utf-8?Q?cG30+QqJr8vtuGQY=3D?= Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: nec.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: TYWPR01MB8591.jpnprd01.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: b364c755-536b-40e8-0844-08da26c63d67 X-MS-Exchange-CrossTenant-originalarrivaltime: 25 Apr 2022 14:16:50.1732 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: e67df547-9d0d-4f4d-9161-51c6ed1f7d11 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: SNOO01o6aPE6W7MPDrC1Z0yyv9q4knXEJY0kIMM90LGUO4aEaidei8tXe+zoNQUNhlhsCCiYqbzKyhEN4MhQyQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: OSAPR01MB4595 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 3A4611C0053 X-Stat-Signature: r4kgr4nnzr9cj79ijwnmi5u5nqyigqz7 X-Rspam-User: Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=nec.com header.s=selector1 header.b=mFQxhpIj; spf=pass (imf20.hostedemail.com: domain of naoya.horiguchi@nec.com designates 40.107.114.72 as permitted sender) smtp.mailfrom=naoya.horiguchi@nec.com; dmarc=pass (policy=none) header.from=nec.com X-HE-Tag: 1650896213-925254 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: T24gU2F0LCBBcHIgMjMsIDIwMjIgYXQgMTE6MTY6MjBBTSArMDgwMCwgWXUgWHUgd3JvdGU6DQo+ IEZvciB0aGlzIHBhdGNoIHYyLA0KPiANCj4gWWFuZywgRGF2aWQsIEFuc2h1bWFuIGFuZCBOYW95 YSBhbGwgYWdyZWUgdG8gZml4IHRoZSBidWcgaW4NCj4gc3BsaXRfaHVnZV9wYWdlX3RvX2xpc3Qo KSwgaS5lLiwgdG8gcmVwbGFjZSB0aGUgQlVHIHRvDQo+IFdBUk4gKyByZXR1cm5pbmcgLUVCVVNZ IGZvciBodWdlX3plcm9fcGFnZS4NCj4gDQo+IEhvd2V2ZXIsIHRoaXMgcGF0Y2ggdjIgaGFzIGp1 c3QgYmVlbiBtZXJnZWQgaW50byBsaW51eCBtYWlubGluZS4NCj4gU29ycnkgZm9yIHRoYXQgSSBk aWRuJ3QgaHVycnkgdXAuDQo+IA0KPiBTbyBub3csIHNob3VsZCB3ZSBjb250aW51ZSBzZW5kaW5n IHYzLCBvciBzaG91bGQgd2UgZW5kIHRoaXMNCj4gdGhyZWFkLCBhbmQgc3RhcnQgYSBzdWNjZXNz aXZlIHBhdGNoIGZvciBvcHRpbWl6YXRpb24/DQoNCk5vIHByb2JsZW0sIHlvdSBjYW4gc3RhcnQg YSBuZXcgdGhyZWFkIGZvciBhZGRpdGlvbmFsIHBhdGNoZXMuDQpNYXliZSBpdCdzIGJldHRlciB0 byBoYXZlIHNlcGFyYXRlIHBhdGNoZXMgKHN0YXJ0aW5nIHdpdGggb25lDQpyZXZlcnRpbmcgdjIg YW5kIHRoZW4gb25lIGRvaW5nIHYzKS4NCg0KVGhhbmtzLA0KTmFveWEgSG9yaWd1Y2hp