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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8AC83C433EF for ; Thu, 16 Dec 2021 03:00:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230484AbhLPDAa (ORCPT ); Wed, 15 Dec 2021 22:00:30 -0500 Received: from mail-eopbgr10078.outbound.protection.outlook.com ([40.107.1.78]:10564 "EHLO EUR02-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S230176AbhLPDA3 (ORCPT ); Wed, 15 Dec 2021 22:00:29 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=zIDfGjeW3s3c3XplrcZfJMqT2NBzPbr6ukgDO/ghw4s=; b=sqMir2w2eV23afQ0YycRu3MriaDuSboDiF/pSSAw4sHF4DiaSrNlh/eT3GXrKRDxFYBOT1/Mwws8MImYpAEDE00JPTzg9MU/SjwGXSeMXjm3QMVOfHwiZ7DjxDhevP6WvHEJ8twnvEeNmjXhIIAoDVEsYn2t8wp9gQnY56svrnU= Received: from AM5PR0301CA0005.eurprd03.prod.outlook.com (2603:10a6:206:14::18) by DB9PR08MB6796.eurprd08.prod.outlook.com (2603:10a6:10:2ad::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4669.13; Thu, 16 Dec 2021 03:00:26 +0000 Received: from AM5EUR03FT044.eop-EUR03.prod.protection.outlook.com (2603:10a6:206:14:cafe::fc) by AM5PR0301CA0005.outlook.office365.com (2603:10a6:206:14::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4801.14 via Frontend Transport; Thu, 16 Dec 2021 03:00:26 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 63.35.35.123) smtp.mailfrom=arm.com; dkim=pass (signature was verified) header.d=armh.onmicrosoft.com;dmarc=pass action=none header.from=arm.com; Received-SPF: Pass (protection.outlook.com: domain of arm.com designates 63.35.35.123 as permitted sender) receiver=protection.outlook.com; client-ip=63.35.35.123; helo=64aa7808-outbound-1.mta.getcheckrecipient.com; Received: from 64aa7808-outbound-1.mta.getcheckrecipient.com (63.35.35.123) by AM5EUR03FT044.mail.protection.outlook.com (10.152.17.56) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4778.12 via Frontend Transport; Thu, 16 Dec 2021 03:00:26 +0000 Received: ("Tessian outbound 157533e214a9:v110"); Thu, 16 Dec 2021 03:00:25 +0000 X-CR-MTA-TID: 64aa7808 Received: from b62dbb760ac3.2 by 64aa7808-outbound-1.mta.getcheckrecipient.com id 879F0808-7E6D-4457-9762-5151C2D23BFB.1; Thu, 16 Dec 2021 03:00:20 +0000 Received: from EUR05-AM6-obe.outbound.protection.outlook.com by 64aa7808-outbound-1.mta.getcheckrecipient.com with ESMTPS id b62dbb760ac3.2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384); Thu, 16 Dec 2021 03:00:20 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=aChYb7+DG1MYETZdfLZVB+plC4puEqyrzAC5vZng08h20ujiUwbi4bpxojHrcWqwPXnKcaAfUYqyQ7PpFNMIVyoQlQa8uZTOXRk9LP93auZWvThlzjKAHibWKBZLkJBnvkwTFc5cQ4Qsl1wGV1TdVodpSF27nyvAzNUpoqi635Rbb6quGGU40BbwFpkT0C5i0TXwLVwaqtHEdeFpEWGq6acG6OyYO2iO2IW3ANssPnfwz3snYkPdSFzoFOwYw72Sc7vAVd5pZnCAnwH8UIy/8qFF+wcwqDWv6RtYbwaAZGgDJMW+caYmZSX+wTgX2YP35EEj4uXcedV1B2TiF1yAQw== 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=zIDfGjeW3s3c3XplrcZfJMqT2NBzPbr6ukgDO/ghw4s=; b=FKG/4Jf1JZPNXTwZpQh0XOCV3oGkubnQmIlqGV3NpDU6Bgnj+i3chLRiRiioJ5RZwW4ooDc2qF+2LgNmENnCuQNb44xNqdTpZYXl+/3dtZROZKYlJbp0uV8vEaoaDJuhEszEN+dzdyIKxQ1rr7QxFrkL2yHyvnK1jhCXiVHyNSUKmv6hW86VxCuGXKednOQ7Z9oK5ENy8yCORpltu6obc9Wpj82wPyL83CGIdKzg3Qedvj8H6BhDb2PAF1Pyo7mt0qjl5UOYAXKQTx9S1GySpld33GjdHKDQC0BYZPjpEunZS5JogubK2voOBGEUAv7opJ91DnVkPgqcB/h83hsmNA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=arm.com; dmarc=pass action=none header.from=arm.com; dkim=pass header.d=arm.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=zIDfGjeW3s3c3XplrcZfJMqT2NBzPbr6ukgDO/ghw4s=; b=sqMir2w2eV23afQ0YycRu3MriaDuSboDiF/pSSAw4sHF4DiaSrNlh/eT3GXrKRDxFYBOT1/Mwws8MImYpAEDE00JPTzg9MU/SjwGXSeMXjm3QMVOfHwiZ7DjxDhevP6WvHEJ8twnvEeNmjXhIIAoDVEsYn2t8wp9gQnY56svrnU= Received: from AM9PR08MB7276.eurprd08.prod.outlook.com (2603:10a6:20b:437::11) by AM9PR08MB7273.eurprd08.prod.outlook.com (2603:10a6:20b:434::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4801.14; Thu, 16 Dec 2021 03:00:19 +0000 Received: from AM9PR08MB7276.eurprd08.prod.outlook.com ([fe80::89be:706d:4ae6:fd14]) by AM9PR08MB7276.eurprd08.prod.outlook.com ([fe80::89be:706d:4ae6:fd14%3]) with mapi id 15.20.4755.028; Thu, 16 Dec 2021 03:00:18 +0000 From: Jianyong Wu To: David Hildenbrand , Catalin Marinas , Qian Cai CC: "will@kernel.org" , Anshuman Khandual , "akpm@linux-foundation.org" , "ardb@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "gshan@redhat.com" , Justin He , nd Subject: RE: [PATCH v2] arm64/mm: avoid fixmap race condition when create pud mapping Thread-Topic: [PATCH v2] arm64/mm: avoid fixmap race condition when create pud mapping Thread-Index: AQHX7awGuMgrKU0nsEmmvzNEMV7iBKwzoI+AgAAeioCAAABiAIAAtj0g Date: Thu, 16 Dec 2021 03:00:17 +0000 Message-ID: References: <20211210095432.51798-1-jianyong.wu@arm.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ts-tracking-id: 09149359E6FB5F40BCE6C9740ED48C20.0 x-checkrecipientchecked: true Authentication-Results-Original: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=arm.com; X-MS-Office365-Filtering-Correlation-Id: 9c4c7a3b-e936-43e1-b8f9-08d9c04035bd x-ms-traffictypediagnostic: AM9PR08MB7273:EE_|AM5EUR03FT044:EE_|DB9PR08MB6796: X-Microsoft-Antispam-PRVS: x-checkrecipientrouted: true nodisclaimer: true x-ms-oob-tlc-oobclassifiers: OLM:7691;OLM:7691; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM9PR08MB7276.eurprd08.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(366004)(54906003)(9686003)(7696005)(110136005)(55016003)(33656002)(122000001)(86362001)(38100700002)(5660300002)(6506007)(8676002)(83380400001)(52536014)(53546011)(316002)(2906002)(4326008)(8936002)(508600001)(66946007)(64756008)(71200400001)(186003)(66446008)(26005)(66476007)(76116006)(66556008)(38070700005);DIR:OUT;SFP:1101; Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM9PR08MB7273 Original-Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=arm.com; X-EOPAttributedMessage: 0 X-MS-Exchange-Transport-CrossTenantHeadersStripped: AM5EUR03FT044.eop-EUR03.prod.protection.outlook.com X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id-Prvs: 15db0a17-487c-40b8-0ab5-08d9c0403105 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:63.35.35.123;CTRY:IE;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:64aa7808-outbound-1.mta.getcheckrecipient.com;PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com;CAT:NONE;SFS:(4636009)(36840700001)(46966006)(40470700001)(54906003)(40460700001)(7696005)(4326008)(110136005)(52536014)(55016003)(86362001)(336012)(36860700001)(316002)(5660300002)(53546011)(82310400004)(8936002)(6506007)(186003)(356005)(83380400001)(81166007)(9686003)(26005)(8676002)(70586007)(70206006)(2906002)(33656002)(47076005)(508600001);DIR:OUT;SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Dec 2021 03:00:26.1076 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9c4c7a3b-e936-43e1-b8f9-08d9c04035bd X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM5EUR03FT044.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB9PR08MB6796 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org VGhhbmtzIFFpYW4gdG8gcmVwb3J0IHRoaXMuDQpJIHdpbGwgY2hhbmdlIHRvIG11dGV4IGxvY2sg YW5kIHJlc2VuZCBpdCBsYXRlci4NCg0KVGhhbmtzDQpKaWFueW9uZw0KDQo+IC0tLS0tT3JpZ2lu YWwgTWVzc2FnZS0tLS0tDQo+IEZyb206IERhdmlkIEhpbGRlbmJyYW5kIDxkYXZpZEByZWRoYXQu Y29tPg0KPiBTZW50OiBUaHVyc2RheSwgRGVjZW1iZXIgMTYsIDIwMjEgMTI6MDQgQU0NCj4gVG86 IENhdGFsaW4gTWFyaW5hcyA8Q2F0YWxpbi5NYXJpbmFzQGFybS5jb20+OyBRaWFuIENhaQ0KPiA8 cXVpY19xaWFuY2FpQHF1aWNpbmMuY29tPg0KPiBDYzogSmlhbnlvbmcgV3UgPEppYW55b25nLld1 QGFybS5jb20+OyB3aWxsQGtlcm5lbC5vcmc7IEFuc2h1bWFuDQo+IEtoYW5kdWFsIDxBbnNodW1h bi5LaGFuZHVhbEBhcm0uY29tPjsgYWtwbUBsaW51eC1mb3VuZGF0aW9uLm9yZzsNCj4gYXJkYkBr ZXJuZWwub3JnOyBsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnOyBsaW51eC1hcm0tDQo+IGtl cm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnOyBnc2hhbkByZWRoYXQuY29tOyBKdXN0aW4gSGUNCj4g PEp1c3Rpbi5IZUBhcm0uY29tPjsgbmQgPG5kQGFybS5jb20+DQo+IFN1YmplY3Q6IFJlOiBbUEFU Q0ggdjJdIGFybTY0L21tOiBhdm9pZCBmaXhtYXAgcmFjZSBjb25kaXRpb24gd2hlbiBjcmVhdGUN Cj4gcHVkIG1hcHBpbmcNCj4gDQo+IE9uIDE1LjEyLjIxIDE3OjAyLCBDYXRhbGluIE1hcmluYXMg d3JvdGU6DQo+ID4gT24gV2VkLCBEZWMgMTUsIDIwMjEgYXQgMDk6MTM6MzdBTSAtMDUwMCwgUWlh biBDYWkgd3JvdGU6DQo+ID4+IE9uIEZyaSwgRGVjIDEwLCAyMDIxIGF0IDA1OjU0OjMyUE0gKzA4 MDAsIEppYW55b25nIFd1IHdyb3RlOg0KPiA+Pj4gZml4bWFwIGlzIGEgZ2xvYmFsIHJlc291cmNl IGFuZCBpcyB1c2VkIHJlY3Vyc2l2ZWx5IGluIGNyZWF0ZSBwdWQgbWFwcGluZy4NCj4gPj4+IEl0 IG1heSBsZWFkIHRvIHJhY2UgY29uZGl0aW9uIHdoZW4gYWxsb2NfaW5pdF9wdWQgaXMgY2FsbGVk IGNvbmN1cnJlbnRseS4NCj4gPj4+DQo+ID4+PiBGb3ggZXhhbXBsZToNCj4gPj4+IGFsbG9jX2lu aXRfcHVkIGlzIGNhbGxlZCB3aGVuIGtlcm5lbF9pbml0LiBJZiBtZW1vcnkgaG90cGx1ZyB0aHJl YWQsDQo+ID4+PiB3aGljaCB3aWxsIGFsc28gY2FsbCBhbGxvY19pbml0X3B1ZCwgaGFwcGVucyBk dXJpbmcga2VybmVsX2luaXQsIHRoZQ0KPiA+Pj4gcmFjZSBmb3IgZml4bWFwIG9jY3Vycy4NCj4g Pj4+DQo+ID4+PiBUaGUgcmFjZSBjb25kaXRpb24gZmxvdyBjYW4gYmU6DQo+ID4+Pg0KPiA+Pj4g KioqKioqKioqKioqKioqIGJlZ2luICoqKioqKioqKioqKioqDQo+ID4+Pg0KPiA+Pj4ga2VyZW5s X2luaXQgdGhyZWFkICAgICAgICAgICAgICAgICAgICAgICAgICB2aXJ0aW8tbWVtIHdvcmtxdWV1 ZSB0aHJlYWQNCj4gPj4+ID09PT09PT09PT09PT09PT09PSAgICAgICAgICAgICAgICAgICAgICAg ICAgPT09PT09PT0gPT09PT09PT09PT09PT09PT09DQo+ID4+PiBhbGxvY19pbml0X3B1ZCguLi4p DQo+ID4+PiAgIHB1ZHAgPSBwdWRfc2V0X2ZpeG1hcF9vZmZzZXQoLi4pICAgICAgICAgIGFsbG9j X2luaXRfcHVkKC4uLikNCj4gPj4+IC4uLiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgLi4uDQo+ID4+PiAgICAgUkVBRF9PTkNFKCpwdWRwKSAvL09LISAgICAgICAgICAg ICAgICAgICAgcHVkcCA9IHB1ZF9zZXRfZml4bWFwX29mZnNldCgNCj4gPj4+IC4uLiAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgLi4uDQo+ID4+PiAgIHB1ZF9jbGVhcl9m aXhtYXAoKSAvL2ZpeG1hcCBicmVhaw0KPiA+Pj4gICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgIFJFQURfT05DRSgqcHVkcCkgLy9DUkFTSCENCj4gPj4+DQo+ID4+ PiAqKioqKioqKioqKioqKioqIGVuZCAqKioqKioqKioqKioqKioNCj4gPj4+DQo+ID4+PiBIZW5j ZSwgYSBzcGluIGxvY2sgaXMgaW50cm9kdWNlZCB0byBwcm90ZWN0IHRoZSBmaXhtYXAgZHVyaW5n IGNyZWF0ZQ0KPiA+Pj4gcGRnIG1hcHBpbmcuDQo+ID4+Pg0KPiA+Pj4gU2lnbmVkLW9mZi1ieTog SmlhbnlvbmcgV3UgPGppYW55b25nLnd1QGFybS5jb20+DQo+ID4+DQo+ID4+IEkgYW0gYWZyYWlk IHRoZXJlIGlzIGEgcHJvYmxlbSB0byB0YWtlIGEgc3BpbmxvY2sgdGhlcmUuDQo+ID4+DQo+ID4+ IG5vZGUgMCBkZWZlcnJlZCBwYWdlcyBpbml0aWFsaXNlZCBpbiAyNzQwbXMNCj4gPj4gIHBnZGF0 aW5pdDAgKDE3NikgdXNlZCBncmVhdGVzdCBzdGFjayBkZXB0aDogNTkxODQgYnl0ZXMgbGVmdA0K PiA+PiAgZGV2dG1wZnM6IGluaXRpYWxpemVkDQo+ID4+ICBLQVNMUiBkaXNhYmxlZCBkdWUgdG8g bGFjayBvZiBzZWVkDQo+ID4+ICBCVUc6IHNsZWVwaW5nIGZ1bmN0aW9uIGNhbGxlZCBmcm9tIGlu dmFsaWQgY29udGV4dCBhdA0KPiA+PiBtbS9wYWdlX2FsbG9jLmM6NTE1MQ0KPiA+DQo+ID4gVGhh bmtzIGZvciB0aGUgcmVwb3J0LiBEZWZpbml0ZWx5IGEgYnVnLCBHRlBfS0VSTkVMX0FDQ09VTlQg YWxsb3dzIGZvcg0KPiA+IHRoZSBwYWdlIGFsbG9jYXRvciB0byBzbGVlcC4gSSdsbCBkcm9wIHRo ZSBwYXRjaCBmcm9tIHRoZSBhcm02NA0KPiA+IGZvci1uZXh0L2ZpeGVzIGJyYW5jaCBmb3Igbm93 IGFuZCBzb3J0IGl0IG91dCBsYXRlci4NCj4gPg0KPiANCj4gU291bmRzIGxpa2Ugd2UgbmVlZCBh IG11dGV4IHRoZW4uDQo+IA0KPiAtLQ0KPiBUaGFua3MsDQo+IA0KPiBEYXZpZCAvIGRoaWxkZW5i DQoNCg==