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 21ADFC433F5 for ; Tue, 26 Apr 2022 06:58:18 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 66F636B0073; Tue, 26 Apr 2022 02:58:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 61CD06B0074; Tue, 26 Apr 2022 02:58:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 470186B0075; Tue, 26 Apr 2022 02:58:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.a.hostedemail.com [64.99.140.24]) by kanga.kvack.org (Postfix) with ESMTP id 37D416B0073 for ; Tue, 26 Apr 2022 02:58:17 -0400 (EDT) Received: from smtpin25.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 092E7209D7 for ; Tue, 26 Apr 2022 06:58:17 +0000 (UTC) X-FDA: 79398126234.25.DFFA080 Received: from JPN01-TYC-obe.outbound.protection.outlook.com (mail-tycjpn01on2071.outbound.protection.outlook.com [40.107.114.71]) by imf29.hostedemail.com (Postfix) with ESMTP id CA8AD12004A for ; Tue, 26 Apr 2022 06:58:12 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=XABxRd/gPozA1j9lO50T9qunvSA9NJl8whtgQQGzXuiamiMkl7D4Q3izw0vzkqcVIOz1hREnToqXL4hny31vVopuJMB/TV/WeQGcOHLz/Mr1PyjxG04POHL0DbQQ+BIn7TDL6IyqK6e0nF9MLuqlF3aMr2c+4BuwmmmbUD7WzF8oSV0R3+ZXSEJUp5lzXnXwBVjgv169nQVFKHfev54RlJFVXK0bAN/d7oRFu8Gaj4UdOx9iLEYolQNHA0KpuUyH81m8bXZ9/GXMIOg+ildojfWFcasLWvEJ1i+PBlnb9LPHMrKHpLBfjnyfYGiruIn3WbzUUKn7bv4AJkYXcw1csA== 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=CCEUxm/4DslzFRtoYv6eAkIYlkNYnETSs9vrWIahTY4=; b=jVy8cHbk2ct/p6EoNLMxpe4oFRmdkEfK9tgghiW+GEBLBkoIyTgxmGSJhw0y43kMnamIHAIf5EDxlTmsFXTxy4rNZbd2sSz5atn4NocnWigZDOxIEkGnEcx1y9QUbkald5nEd92GbXK0g39XT0PS2tcaoyQomd30zM0G+Ls3pqnpIFzD65jZOfDAoLXkBoTqt2yumnedTUObkb9FOdRjG2JNsDisFp3CHJooj9Wx5y6KBP33PGwNGG6+4ZJ/nDf4ESY0rFe6nyN4sOFnpVNzWQVh1IGZ4IVetbXzMPaJW3KPi9HJcVkQ+pXQxxiN1YIGOKoePu1twEWveNjfs5dM+A== 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=CCEUxm/4DslzFRtoYv6eAkIYlkNYnETSs9vrWIahTY4=; b=Bh+ckdCuXXUlubtgqL+linmhZLXHEhfBt0zTHyBjleXUsTF1lhZ3B29OyoHeo71ayPYbNqaWHoMMX1z0dnmK70s9Pk31VT6iFSngVN9wWToGQGdrOaOdXv1YqzdmiAuekmOMYCWcT6Em0e98az0ympZWWftjpgueUxfdKvnpIxA= Received: from TYWPR01MB8591.jpnprd01.prod.outlook.com (2603:1096:400:13c::10) by OSZPR01MB9533.jpnprd01.prod.outlook.com (2603:1096:604:1d2::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5186.13; Tue, 26 Apr 2022 06:58:10 +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; Tue, 26 Apr 2022 06:58:10 +0000 From: =?utf-8?B?SE9SSUdVQ0hJIE5BT1lBKOWggOWPo+OAgOebtOS5nyk=?= To: Anshuman Khandual CC: Yu Xu , "linux-mm@kvack.org" , Yang Shi , David Hildenbrand , "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+khJEA7KOK0AsLOAgAEVHYCAAAKogA== Date: Tue, 26 Apr 2022 06:58:10 +0000 Message-ID: <20220426065809.GA3847941@hori.linux.bs1.fc.nec.co.jp> References: <497d3835612610e370c74e697ea3c721d1d55b9c.1649775850.git.xuyu@linux.alibaba.com> <8e1a882c-8568-57f2-216a-703f220e0e3f@linux.alibaba.com> <20220425141649.GB3767079@hori.linux.bs1.fc.nec.co.jp> <4a004118-ff5a-ca2e-e707-5886c41045b5@arm.com> In-Reply-To: <4a004118-ff5a-ca2e-e707-5886c41045b5@arm.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: 38fb24b8-560b-4462-77d3-08da27522017 x-ms-traffictypediagnostic: OSZPR01MB9533: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)(85182001)(38070700005)(55236004)(316002)(4326008)(71200400001)(5660300002)(1076003)(66476007)(82960400001)(38100700002)(66446008)(64756008)(8936002)(508600001)(122000001)(6916009)(8676002)(86362001)(6486002)(966005)(76116006)(66946007)(54906003)(186003)(6506007)(33656002)(2906002)(6512007)(53546011)(26005)(9686003)(66556008)(14583001);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?UXNoTXlLNUg0NVM4S0F0bSt5WGprR1JiN2hOY3Yvdkp5dFNpQ2NYZXlUYkRI?= =?utf-8?B?TEkvQkZ3M0hlV0s2blVXdVZLVkppeUEyUlRnNTFlZ1BteGRERTAzRURiNVJr?= =?utf-8?B?SGx6RzRyRFM1SU5seXJ6STJ1a0xhVGhzNVB4T2k5ZFA5YmRXMllodmk0Z2pL?= =?utf-8?B?aDNrL3JWNzlyNW4vdlA0ZG5BdStGL1laU2FUeWdpYVhYRmU3OENZZDBHOFlW?= =?utf-8?B?T0toS3U4V0JUWmdkcEl3ZElQUE96TjNRZTFaMnFwcVNxVC9TUWxjNzBEM0Z4?= =?utf-8?B?R25QNlVkL0JlYi94cFpsTzl2ZVdLWk11U0hCdkhvRHFKeERqa1M3aEFiNng2?= =?utf-8?B?QlJTT3NYYkU5aTlHbjlacGtGcmcwdCs3M2lnYTc1R1ZkZE8zOC9FWjd6N1o4?= =?utf-8?B?YysvL2xCU2tZYXptbmVhK2w4SzF1VlduVVR5bFZQV0FKRjJZQytVOXRzZ3No?= =?utf-8?B?elF0WDhoQzloTzJTUUV0SGhvdmx6L3pmT3pVK0hOa2dOdHNKaml6NlZXUlBr?= =?utf-8?B?N3dJZXVTdXNERDVUaWIrRE1BYit2MitNMUNWTmx6Vm1GVHpDNWZhNkh3a2Na?= =?utf-8?B?ZWNYK0M2c3AwQkpOQVRRSVozQmIwRFk2d0s2cUlySmRKNnZDcjNabEY4Undk?= =?utf-8?B?aFJQSGNDb205MUlkbmNscGxlUFVWRDZMQ3k3eGVEY0p2aHB1Yy92aUpqcDk0?= =?utf-8?B?L1ZzY3VGRFpYVW15bnVncjYyQ1ltWXpDSk9PU3hvM0JTS1NxaVBqenowb3NC?= =?utf-8?B?U1Jubm1Zbmdud0ZWWnM4SHRkZXowZjJjR1NrZnZ0YVlUcmFwZW5tQlV2SFBm?= =?utf-8?B?dlR4L2lwdFZGZ3kzVjZ1dVRhYVhES2RLRXlvZUEwSW5UUXBhWGgxNTlOMmtN?= =?utf-8?B?WXFqb2JjeGtyUWt2c0lOZ0YyRUJFYWF4QURoWUJ1WnFoM2VkRDdiL29WbzVM?= =?utf-8?B?YVlRQ29oYWVsT0VJV3R4RGJBcVRSSGZCRW92R1lncWdsL1ZLUG9FM0JWT2FP?= =?utf-8?B?WFFLT20zcmNHaThXYmNMVVBsYzEvQlNjSXN1RmtNTkIwYTMvNXNCU3NhWlR4?= =?utf-8?B?OEpLbHZpeEVtMUJhQ1dBWTZscUxjWWhlVklmMStjZkMwamNRVkF5bnhVRVNl?= =?utf-8?B?UEErcXNQLzVnR1pscG0xT0FsYzh3MkNVWS9rNnBSQThXRStYaEpvZHJxbEFh?= =?utf-8?B?a3JwTFhKdnVMWnBLNm9NbGNjL0NIcnBFRDdlb2FONklUSlNkUUREeVVYbmN6?= =?utf-8?B?OVAwaFZvVlN3SDU5TUkxSmxoZ1o4b2k1T2ZQUkhQa3F3R0NJcU5VYUh6NXhr?= =?utf-8?B?Tk04UXJvYjRLZ2dTRUZUM1ovU2UwMHYyRVhMQTRCdE9nK0ltM3dPQVF1QXAz?= =?utf-8?B?TXFBc0xQSWQxTXlFZ05HcmFYbHI0NE1UaExJQWFpYlViT05YNkdpTXpjanor?= =?utf-8?B?c3dzbmhQSlZkTmFaNWh3Ui9EVGRZd21OWWRERE9lQXNEYzhPK3ZWZzg1MWR3?= =?utf-8?B?YkgwdUVaejBHaHJSQXhtRnYxUjM0cjZYYXErOUw2bGhVWVVxTGNUU3U2WmtZ?= =?utf-8?B?UDFWWms1akkvUTVPQW93VWdmR1MyTFI2Sng5MkM5UVZwdVE1ZjIrRTlPT0M3?= =?utf-8?B?eE9wK3hlYU9lUGRIMGRCYklJaHFSQW9JMjkrR3VPQWdvU1F2bDRZRC9WOFU5?= =?utf-8?B?VTRHOUlBNFVhVlIzWCttdFVYWSsxZVdpajI4eW1RQjZJdFR0c3RkU3F5Q3NL?= =?utf-8?B?aFFvN2JhdXA3WWpxTEtleENXSldobS9DQ3F4QXlWT0lSVEcwdllqbXdFWnhH?= =?utf-8?B?djh1RGR6S1ZZeHJaVDhBcE1iRmRmMDY3QThNTzJxeXZlT3ZnbVUycWkvbkVr?= =?utf-8?B?MWFXZEZlem90K21ieFNrT2hhcFFtT1BBRW1yL0J4U0xxRHJpdmsxRlQzWTN1?= =?utf-8?B?b3ZsU2ZCbEN4S1ZwMVlvRUFPWnB3Wk5EemhpQVQ4eEg3citvdEtmZjdiRml1?= =?utf-8?B?Y0NLaXYyQ0ZMM2UvN3EwUTdPNzh6ci9ab1ErbXpzRHVyU2o0S1NlY3d2aVBp?= =?utf-8?B?ZHFTMmJqSWV4aWs4K1RpK0lMdG11R1BQZ25MRy8zdmthSDhBU25tRUsxQ1hy?= =?utf-8?B?Qjl4WStUUEFhSk1ITU9WQm0zenZvZUFxNElkN3Q5SGY5bFRyTm00WW5VMWhx?= =?utf-8?B?VEt0dUV0aHlNTmFQZTZmMks2OHlJV0tJMlRhSnBZY29DTlJYVm9sRTlQc0tt?= =?utf-8?B?dFdaWEQ4ZzVLK2xxWE5KbUJqWXlCVm9HMWRCeHBQNzdjUC9qelM3R3p6cGt4?= =?utf-8?B?NHZjUk8yb2FnbGJ4ZnhzL3FWM09KdE5qVEplWWw4b2lheDhQNkdPcmhVREFv?= =?utf-8?Q?eEYy6PTf0nbjf15w=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: 38fb24b8-560b-4462-77d3-08da27522017 X-MS-Exchange-CrossTenant-originalarrivaltime: 26 Apr 2022 06:58:10.5244 (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: XmOU26ItcChbqIRzPzo5A1I08XYTF42x8BcIcsCT+NnH2AIZlO8x3L+CEhg6VRzIZ67UdLsDVrQ3JuhRz1i4jw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: OSZPR01MB9533 X-Rspamd-Queue-Id: CA8AD12004A X-Stat-Signature: s6675ps9r8t7omy4qa5rjfeez5hoihks X-Rspam-User: Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=nec.com header.s=selector1 header.b=Bh+ckdCu; spf=pass (imf29.hostedemail.com: domain of naoya.horiguchi@nec.com designates 40.107.114.71 as permitted sender) smtp.mailfrom=naoya.horiguchi@nec.com; dmarc=pass (policy=none) header.from=nec.com X-Rspamd-Server: rspam09 X-HE-Tag: 1650956292-13657 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: T24gVHVlLCBBcHIgMjYsIDIwMjIgYXQgMTI6MTg6MzlQTSArMDUzMCwgQW5zaHVtYW4gS2hhbmR1 YWwgd3JvdGU6DQo+IA0KPiANCj4gT24gNC8yNS8yMiAxOTo0NiwgSE9SSUdVQ0hJIE5BT1lBKOWg gOWPoyDnm7TkuZ8pIHdyb3RlOg0KPiA+IE9uIFNhdCwgQXByIDIzLCAyMDIyIGF0IDExOjE2OjIw QU0gKzA4MDAsIFl1IFh1IHdyb3RlOg0KPiA+PiBGb3IgdGhpcyBwYXRjaCB2MiwNCj4gPj4NCj4g Pj4gWWFuZywgRGF2aWQsIEFuc2h1bWFuIGFuZCBOYW95YSBhbGwgYWdyZWUgdG8gZml4IHRoZSBi dWcgaW4NCj4gPj4gc3BsaXRfaHVnZV9wYWdlX3RvX2xpc3QoKSwgaS5lLiwgdG8gcmVwbGFjZSB0 aGUgQlVHIHRvDQo+ID4+IFdBUk4gKyByZXR1cm5pbmcgLUVCVVNZIGZvciBodWdlX3plcm9fcGFn ZS4NCj4gPj4NCj4gPj4gSG93ZXZlciwgdGhpcyBwYXRjaCB2MiBoYXMganVzdCBiZWVuIG1lcmdl ZCBpbnRvIGxpbnV4IG1haW5saW5lLg0KPiA+PiBTb3JyeSBmb3IgdGhhdCBJIGRpZG4ndCBodXJy eSB1cC4NCj4gPj4NCj4gPj4gU28gbm93LCBzaG91bGQgd2UgY29udGludWUgc2VuZGluZyB2Mywg b3Igc2hvdWxkIHdlIGVuZCB0aGlzDQo+ID4+IHRocmVhZCwgYW5kIHN0YXJ0IGEgc3VjY2Vzc2l2 ZSBwYXRjaCBmb3Igb3B0aW1pemF0aW9uPw0KPiA+IA0KPiA+IE5vIHByb2JsZW0sIHlvdSBjYW4g c3RhcnQgYSBuZXcgdGhyZWFkIGZvciBhZGRpdGlvbmFsIHBhdGNoZXMuDQo+ID4gTWF5YmUgaXQn cyBiZXR0ZXIgdG8gaGF2ZSBzZXBhcmF0ZSBwYXRjaGVzIChzdGFydGluZyB3aXRoIG9uZQ0KPiA+ IHJldmVydGluZyB2MiBhbmQgdGhlbiBvbmUgZG9pbmcgdjMpLg0KPiANCj4gTWF5IGJlIGFsc28g cHVsbCBpbiB0aGUgZm9sbG93aW5nIHBhdGNoIHdoaWNoIGFkZHMgTUZfTVNHX0hVR0VfWkVSTw0K PiBpbiB0aGUgc2FtZSBzZXJpZXMgPw0KPiANCj4gaHR0cHM6Ly9sb3JlLmtlcm5lbC5vcmcvbGlu dXgtbW0vMjAyMjA0MjUwODAzMDYuMTc3MTQ4MC0xLWFuc2h1bWFuLmtoYW5kdWFsQGFybS5jb20v DQoNCkkgZG9uJ3QgdGhpbmsgc28uICBJIHRoaW5rIHRoYXQgWXUncyB2MyB3b3VsZCBzb2xlbHkg c29sdmUgdGhlIHJlcG9ydGVkDQpwcm9ibGVtLCBzbyBhbnkgY2hlY2sgZm9yIGh1Z2VfemVyb19w YWdlIGluIG1lbW9yeV9mYWlsaXJlKCkgc2hvdWxkIG5vdA0KYmUgbmVlZGVkLiAgKEJ1dCBjb3Jy ZWN0IG1lIGlmIEkgbWlzcyBzb21ldGhpbmcgLi4uKQ0KDQpUaGFua3MsDQpOYW95YSBIb3JpZ3Vj aGk=