Received: by 2002:a05:6358:1087:b0:cb:c9d3:cd90 with SMTP id j7csp7710354rwi; Mon, 24 Oct 2022 19:22:42 -0700 (PDT) X-Google-Smtp-Source: AMsMyM4eqHb3e/HxWy/h2uiWKubgrHfzZbnun/xprZLRGvU220DVoy7dybSaES1o8zUxP1TfCBVU X-Received: by 2002:a05:6402:847:b0:453:944a:ba8e with SMTP id b7-20020a056402084700b00453944aba8emr32887949edz.326.1666664562537; Mon, 24 Oct 2022 19:22:42 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1666664562; cv=pass; d=google.com; s=arc-20160816; b=LmUJxa82hLXXIAYxEr3xsRXJp4plLhCsjdEVphRxC6akOPLw2BKk2aXWwrUb474wzK cz2IJAuqQ5oUZvUtPpkUkJkXjXFcxGtjYaelRFLiBHNSbGQ+Cyk0rLNB7F7z/Zl4blWN W++5f62rDTLOMfdTFyQfOmF0spfvXM2Cz4xaWKqIZAmDtneIHed5+0Wf3gGTulOIXgZt +oee1gWUKxmvNX+Ub1vJBe/4B8DhzyVaMl7AqK9Tz/sXBZaOJhJ10vj/0WNN67eg54Xt GVLMuL1NPclSLAL0FViPBd5O9NXj98y8aLbRUiaCxdxnAUcn4xxVM9wnsjGXqrmqcWHH /hfA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :content-id:user-agent:content-language:accept-language:in-reply-to :references:message-id:date:thread-index:thread-topic:subject:cc:to :from:dkim-signature; bh=ZZ/cDWYIl/00p8Qp4oGLhqOmOJJ0XdecIt8K2JKXfxg=; b=A1RK091OPJItBemtsXYwiYceSMvryKpXmoUxPRWziuEtvsUvF+A9CkXTSw4N42478a jQ1gibpLCmrcYYGAOLj6rcku1egdggVhNf8RUqECsoYvSe8KvgPbkTQNIUX1+H98q5A+ YegwDT6tDkQN3mvoHJmgzh+XZgZlZfdBUY7htG9FzjH16YGeNouOa+RSYGFODTDEx30Q TQIOp+OqLfOarFpATZ5XQwyJRfc9lnQSBGFx3ttNTl06Y7HE3xzpEDF1J5jvSHHA6bGw pCwcuGH5WGcBV1R1/LZQ8gLkqkVDJa77yKS4BKn+6SCPFVodNOFaQDrzuBtiC5M80Bol Jtng== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=gHFIVH4E; arc=pass (i=1 spf=pass spfdomain=nvidia.com dkim=pass dkdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id oz30-20020a1709077d9e00b0077fd5b45e18si1527018ejc.929.2022.10.24.19.22.18; Mon, 24 Oct 2022 19:22:42 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=gHFIVH4E; arc=pass (i=1 spf=pass spfdomain=nvidia.com dkim=pass dkdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231411AbiJYBni (ORCPT + 99 others); Mon, 24 Oct 2022 21:43:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37216 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231603AbiJYBnX (ORCPT ); Mon, 24 Oct 2022 21:43:23 -0400 Received: from NAM02-BN1-obe.outbound.protection.outlook.com (mail-bn1nam07on2060b.outbound.protection.outlook.com [IPv6:2a01:111:f400:7eb2::60b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 645DC9588; Mon, 24 Oct 2022 18:26:49 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=FFYlFiC71p1kg1Rl1DlibGMZEm1FHc0TTfvsqIJTkOrLy0Tkm4UNT/6IRPM42QKJzk59F9lXIhmuIMZNm0HAPCA3eSuGOs7On4R5z6GSc15NR9JN18x3LrIJacFbImq735wFWkwVnKfuoxdcMMeQ/LjbRr7IDiBVjl0aE+PX3oj9921H+K81i9fpcPVIoQYvXiJtF5ISf6YS/DXunEVjxA/lk0M00z0if5Nf07YjsOPy9zFvSB9QlSMaKjR4FMhdgLNW/KdOXJaFEWNKEJUk7lu+IBN1Dxs3Q9iKC134ia54qOYJNYRYD2/bnz9JRd1slyDdo+ZELCppsq3JWAE4Jg== 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=ZZ/cDWYIl/00p8Qp4oGLhqOmOJJ0XdecIt8K2JKXfxg=; b=eeLbjCRJGm4JDsCAL9wHp14wQKJKfYmilb4w06a1i25c3ZlplEL0L5hH48sNf1cMezgMBDtnzwIjtJkK2Bzq8It/XFDQg39RwdtgaK9xl7hwyOsH1fE092Xos6Ep1TaLnjBBFwlJS4Qkr/gsdh9XU0oaEKw1hQpPgHGzpmSedl8VIgq9Zx2o1AjEUjLvqNGubatSDwA9XRzwu62KWPVvDh2a+FvVe6XVpmY1MXMYHdDwhb6SladPjkkQFBkz0+f5xKmXSj4vbTTwWUjACPiZqJg6sHH3kDQ5X0u8SOwjNHkCrT3SwyyZYPqXtuLhaHcjLTAK5M13jyLpH5CuuPIPzQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ZZ/cDWYIl/00p8Qp4oGLhqOmOJJ0XdecIt8K2JKXfxg=; b=gHFIVH4E7gpjPpg4ZtvU1PtF8isfJndLwfcaxt7j5mfs8dW6lZPIp+VYLPDUdhC39aA2Tt9LUG67a9qGCKAtbDUXZOAqhj0P+P2zKsXjnnF99K0msz7LLHspXLczXXCVUaiPCufao4GCILGvgYBMGTBBC+tiRCQ6LZPZMa/ee6xjwFX3xGu4Y1KuSa/sRtP2ZqdiYUfSzJPb6HrRTsAsImYrN/YKNLhxDD0TvV/4Xwwl4OPef9uI/NhzVi+zShru9sEDc5mgc955dKaw/71j45NB/3ZpaNbbWofKJ+o/3ZlosI074bCTkH/rWHshCykZVkaF9D1K5w4tE+7cvms93Q== Received: from MW2PR12MB4667.namprd12.prod.outlook.com (2603:10b6:302:12::28) by MW6PR12MB7071.namprd12.prod.outlook.com (2603:10b6:303:238::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5746.21; Tue, 25 Oct 2022 01:26:45 +0000 Received: from MW2PR12MB4667.namprd12.prod.outlook.com ([fe80::1402:a17a:71c1:25a3]) by MW2PR12MB4667.namprd12.prod.outlook.com ([fe80::1402:a17a:71c1:25a3%7]) with mapi id 15.20.5746.021; Tue, 25 Oct 2022 01:26:45 +0000 From: Chaitanya Kulkarni To: Logan Gunthorpe , "linux-kernel@vger.kernel.org" , "linux-nvme@lists.infradead.org" , "linux-block@vger.kernel.org" , "linux-pci@vger.kernel.org" , "linux-mm@kvack.org" CC: Christoph Hellwig , Greg Kroah-Hartman , Dan Williams , Jason Gunthorpe , =?utf-8?B?Q2hyaXN0aWFuIEvDtm5pZw==?= , John Hubbard , Don Dutile , Matthew Wilcox , Daniel Vetter , Minturn Dave B , Jason Ekstrand , Dave Hansen , Xiong Jianxin , Bjorn Helgaas , Ira Weiny , Robin Murphy , Martin Oliveira , Chaitanya Kulkarni , Ralph Campbell , Stephen Bates Subject: Re: [PATCH v11 7/9] block: set FOLL_PCI_P2PDMA in bio_map_user_iov() Thread-Topic: [PATCH v11 7/9] block: set FOLL_PCI_P2PDMA in bio_map_user_iov() Thread-Index: AQHY5XRd3ZgDhJqZp0ODtc6iwuzMGK4eVsYA Date: Tue, 25 Oct 2022 01:26:45 +0000 Message-ID: References: <20221021174116.7200-1-logang@deltatee.com> <20221021174116.7200-8-logang@deltatee.com> In-Reply-To: <20221021174116.7200-8-logang@deltatee.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.0 authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: MW2PR12MB4667:EE_|MW6PR12MB7071:EE_ x-ms-office365-filtering-correlation-id: 909294e2-5c36-4d42-ca2a-08dab627fae5 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:MW2PR12MB4667.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230022)(4636009)(376002)(346002)(396003)(39860400002)(136003)(366004)(451199015)(122000001)(5660300002)(186003)(2616005)(83380400001)(38100700002)(38070700005)(86362001)(31696002)(2906002)(8936002)(4744005)(7416002)(478600001)(54906003)(6486002)(41300700001)(91956017)(316002)(4326008)(71200400001)(76116006)(6506007)(66946007)(64756008)(66476007)(66556008)(6512007)(8676002)(110136005)(66446008)(53546011)(36756003)(31686004)(45980500001)(43740500002);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?aEhNOUFLR1F4dUI0L2NnUDhKT0NCbDJtcElDZVlwd1ZNejBQenFhOGxJRCtZ?= =?utf-8?B?YlRCc054UzJucG10WkVqdWREQy9sOU5HUmVWR0pYaktxa2ljY2JLRnFmMmNS?= =?utf-8?B?WndaYll6WVgxNkxJVXU4ekdYR3RqQ3lBR2Jvano3K1B6bGorbC9aT2hFa3pl?= =?utf-8?B?MWQzeXllSzkwNTNWcm5TaXcxTEZqZXhwMGpnUEJoMjhuNUpaVUtwTnN3dFNz?= =?utf-8?B?QkVaNnVUb1ppNVk5emhpeTdoUVY0RkpHeVUxd0xYYkJxVGx4TkdpUXp5OENa?= =?utf-8?B?RnArZmJZNFUvRVBHc3JHeEhsazRoYTNveThacm92eHlEYXlTaFlkMVdFZ09l?= =?utf-8?B?YnFMM1p6czR0TGpRNDVYclh3QVZjb2JJcEN5b2FMdjRSeVpibXphLzRJLzE1?= =?utf-8?B?WTBsZUFSRU04WWhyWlZ1UEhPdmxvU2xOYVdoblRJNXNJcGY1UGdXeUZLNnZh?= =?utf-8?B?NlZiblZsUFUzenIrMm1oYjlYdUdzd1ppOVlFMit6dExZR1NMVkVrVHluNTRt?= =?utf-8?B?WHI4TUJZMGtGblc1T3Nic1VFdWl6NFJpMXRYVHIzVXc5UW5XVVhwL0xOWXhM?= =?utf-8?B?cjZMOXJ4VDFHcGpXYWlqdXpZS3RUSjRGK2I2VzV2VUUzbjMrWnYrT2E4ekhG?= =?utf-8?B?KzVvWm5zRXdEaGVFOUJzcXFwaFp4MnVheU14eFZWNHNsVHhXOTNUSVl2ci9v?= =?utf-8?B?WE8yWGhmb2k1WDRZaVJWdTJVa2Zjdjc1L1FCVW5xZDFWVzB2L1l5bWlvOWhl?= =?utf-8?B?cTgrNG1uSnZ6ZWNGU3NIQWhBc3dZaXRkdk83NGtyZG5GTkZQU2xheGFjNHRE?= =?utf-8?B?WUhJOXRMcndvRHBpSGRveTM4LzU5QUptUWRaZzBBQXE2T04vTUY4Ym84Q2Vu?= =?utf-8?B?YjFGUTcwZkN3YUFNNUwrOEJCaXY0MUg1WHM0bW9EbTJIdFhFVlc4Tm02RElC?= =?utf-8?B?bnZ2a3d5T28rZ0Y3R3hyTXdyL0NjVFg2OTRhWE5rNkZVeVFPSjVHY1BMbFVZ?= =?utf-8?B?S0dWVXlaZkFBeWpJbG9vcGNzQ09lOFoyaWU3VEJnM3lHZnFCMllRWGNvOHJK?= =?utf-8?B?QS9BbS8yTXFRWE9Nb2FoMFMzZTRmVUg1TzVUckFIbkxFajl3K3FOVFo4NCtW?= =?utf-8?B?YmhlalhXN0t5NnRpLzZEK3ZSVkM4bXhmdUhCbEwrU3ZwNzRwUElFODBjWlYr?= =?utf-8?B?cmVBL2ZiYTZtdzEwcWV1SzB3U0dBM1ltemRXZGFoQXZKMWNOWER1VXdIM09V?= =?utf-8?B?VWJFL2M4U2kxaXFBZWRyZEI1cFJ1eExucko3ZVR2UFBaSktvK3BYMnRzVFN1?= =?utf-8?B?dURVaUpRMXAvNjB6MGVwR1hwYkhYd3YrSnYwVjdDaytYMi92TW9nT0NOR0NO?= =?utf-8?B?VWFrZ0hRNHZ3OVE2QnY2SFpwc0lEcy8wVzl2SmpPSUorSXhYWDdOYmhvUllM?= =?utf-8?B?Z24zVWxkY25kTXJtcm92K2xaMUFGTWR6d2loam8vRXg4Qmo3TjZxVnRnUUhF?= =?utf-8?B?UkdjYzZvc1g2QnkycjlxU2Y3SzA2QTRjQlF1SHZ0ZUxBWXVJd2hNcU1qQlFu?= =?utf-8?B?bURPWXhZNVVTOTRESFVLdkIvYTg1M0Rybm0zZm1UNzFSWlVXWDdkZEYycDVy?= =?utf-8?B?eG5QdW5EakdXSzdDK2VYUUoyeW5UTTRsQ3I2b2xBZjdyME15QlBZb016RmNH?= =?utf-8?B?NzBja2dJcXB1OXkrdm1IczNTV2ROcEI0RjFtNmZXY05iUm1JZm9UbDhkMU1p?= =?utf-8?B?QlNaV3hzRFQ1eEFKb2JqK2pZMFZlbC83MjBraU9iRFBubndrK3RBbW9PQ2g3?= =?utf-8?B?THRpQUtvZEpHZHNzYzFrUEZMK21zU1U3Mk1vUjJXK2ZrQ29OSlpLT2NuZGxF?= =?utf-8?B?ZTh6M1ZuZnVyWDZKNWJVUXFydDFmdEdSZGlwYzdraVMvL2FLTFhYeWRIampB?= =?utf-8?B?c2ZQRlVsUDl0K0l0dDNJeFlJSC9za0luZVEycGxQSFJ5eFZjWjNHUmJURy9D?= =?utf-8?B?YjA3OTgxNXpRdGEzU0tWQ0JQZHJEWUlDTDhqaDFQckpPNStCWFNYTnYzL050?= =?utf-8?B?aTFKVVdYeDRaZW1VUnpCVWg4SWhFOGtpUWZFQklDS0JIRmNDVG1wNStVaTlI?= =?utf-8?B?TTVsNmY5YVhYb09kN3V2VkYrSDFJWU5IOGl4OUF6VDUxbHZUcFR5dmJVYnFF?= =?utf-8?B?RFE9PQ==?= Content-Type: text/plain; charset="utf-8" Content-ID: <0C72CE779DA2FD46BD880B8DE7BAB2D0@namprd12.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MW2PR12MB4667.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 909294e2-5c36-4d42-ca2a-08dab627fae5 X-MS-Exchange-CrossTenant-originalarrivaltime: 25 Oct 2022 01:26:45.5533 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: BOHRnX9pgRu0yLWhihxUpn85it+MNqfi8P3DKLVUipRO6nuqLa4JxTF5mvMjNiiX5vBPW/rSb4lPITMZ372uhQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW6PR12MB7071 X-Spam-Status: No, score=-1.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, NICE_REPLY_A,SPF_HELO_PASS,SPF_NONE,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gMTAvMjEvMjIgMTA6NDEsIExvZ2FuIEd1bnRob3JwZSB3cm90ZToNCj4gV2hlbiBhIGJpbydz IHF1ZXVlIHN1cHBvcnRzIFBDSSBQMlBETUEsIHNldCBGT0xMX1BDSV9QMlBETUEgZm9yDQo+IGlv dl9pdGVyX2dldF9wYWdlc19mbGFncygpLiBUaGlzIGFsbG93cyBQQ0kgUDJQRE1BIHBhZ2VzIHRv IGJlDQo+IHBhc3NlZCBmcm9tIHVzZXJzcGFjZSBhbmQgZW5hYmxlcyB0aGUgTlZNZSBwYXNzdGhy dSByZXF1ZXN0cyB0bw0KPiB1c2UgUDJQRE1BIHBhZ2VzLg0KPiANCj4gU2lnbmVkLW9mZi1ieTog TG9nYW4gR3VudGhvcnBlIDxsb2dhbmdAZGVsdGF0ZWUuY29tPg0KPiBSZXZpZXdlZC1ieTogQ2hy aXN0b3BoIEhlbGx3aWcgPGhjaEBsc3QuZGU+DQo+IFJldmlld2VkLWJ5OiBKb2huIEh1YmJhcmQg PGpodWJiYXJkQG52aWRpYS5jb20+DQo+IC0tLQ0KPiAgIGJsb2NrL2Jsay1tYXAuYyB8IDEyICsr KysrKysrLS0tLQ0KDQpSZXZpZXdlZC1ieTogQ2hhaXRhbnlhIEt1bGthcm5pIDxrY2hAbnZpZGlh LmNvbT4NCg0KLWNrDQoNCg0K