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 X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72186C31E4B for ; Wed, 12 Jun 2019 17:54:41 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 0A3AF21743 for ; Wed, 12 Jun 2019 17:54:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amdcloud.onmicrosoft.com header.i=@amdcloud.onmicrosoft.com header.b="GwkF2zed" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0A3AF21743 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=amd.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 92CB76B0008; Wed, 12 Jun 2019 13:54:40 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8DD7A6B000A; Wed, 12 Jun 2019 13:54:40 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 77E3B6B000D; Wed, 12 Jun 2019 13:54:40 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mail-vs1-f70.google.com (mail-vs1-f70.google.com [209.85.217.70]) by kanga.kvack.org (Postfix) with ESMTP id 4C2606B0008 for ; Wed, 12 Jun 2019 13:54:40 -0400 (EDT) Received: by mail-vs1-f70.google.com with SMTP id k10so5657145vso.5 for ; Wed, 12 Jun 2019 10:54:40 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:dkim-signature:from:to:cc:subject:thread-topic :thread-index:date:message-id:references:in-reply-to:accept-language :content-language:user-agent:content-id:content-transfer-encoding :mime-version; bh=qsr+DrOReLLHaqJmxCSSxEENrX8ySUtZsI5ISTYzod8=; b=LtgUh/x7hOdoxArUwyX3guEbJVK7yS+W/xViS/S5+LKyKDkrs2i+aBq9Ux5ic23dfM SVm8Ecpp43wBRyWQYHYo0dVcVtgwpglXURq5Rg6uAHQZcT0dD4tZLsmbimO/2Z8zJGaN j0QRO7R+QCcfMbaw1mFUL+NOd7ZxlX5KrUmQ931RFPbwA54/+eiqZr4ORP7Twlo0PHhr kYThngG1HrilyVEP7bvRjyx7KMGr8LuYlX395ZKvO4a2hVMEyC+DSvSveuflZyG6UduK bZfHvUDF41pg5ffkdGnzEopIqXuTOIi0Xhz+z2aEM5E4Eci/uGLWAK6SQwOD9cRoQ1tM pDZg== X-Gm-Message-State: APjAAAUVBgwPN31VD+eJZ3FUyuuyeDD0g7seXOiWpJCT1fAX6ZeG5Ixt 0bUXelRqeJ+HhYh4mF25rKShL34KoUW2GOJCMGKHfVt1y9wFDS90UEMAus5lkO+69EYCpxJpfER cDVxweASO7OGdM+OE/AVZHEEcGaVFXu7x4b+zV2WPweMEs/Sw0WtkjjcU/DptQVY= X-Received: by 2002:a1f:bf07:: with SMTP id p7mr13608605vkf.8.1560362079878; Wed, 12 Jun 2019 10:54:39 -0700 (PDT) X-Google-Smtp-Source: APXvYqyqXHW/8tSsWN87iDKXE86HaobvbBLQGHYMVz6RcncdZB8nIyKSBeSrtc7EMhJj4n66Ikt9 X-Received: by 2002:a1f:bf07:: with SMTP id p7mr13608520vkf.8.1560362078883; Wed, 12 Jun 2019 10:54:38 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560362078; cv=none; d=google.com; s=arc-20160816; b=AsLUY0QFH5Vv13IB9qzvMXLbRzBFUVnnK76HWzVwQDXkiwGFEhPB7HV/VHeQpj8rMC wiWUoGHZhrQtkQd+4TWrst6kTSRE0dCm3uqTKa1yzkQ5LYqLBbUyy0l5rQzVYk/WpUBN hvAkFd9nXVOwJOKevfF/k2eH2kD7e142/KQekj12ANJywgU17yrlDyA3p2SDWAY8cR75 hzIhUQNKiAAwbpoCEzWwYOv90GE56FrF0oF6njsgfo2RVfn6RXykQ83LA6L6et+N5gFS z8QSnnkOZHRNbF0AHjDfZ0SqbiISlPg8qd3BoFzYMUP314L2OH/DTo0XUoS1eAk0bwb7 ZMQA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=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=qsr+DrOReLLHaqJmxCSSxEENrX8ySUtZsI5ISTYzod8=; b=N2lX63VbtGBADcCm82ekAhBviQOPiLdMG7v0K0jJGngkkAge6HjxkqGBkZVxsvDf2t tHjjRDYcrOj/+2OCNK/KEbTg193Z8BF6G/U1Vp8njmC21apojuKeVkpsxZmrBQ4RJswl P0fv7c4LdydHgLeY5fI0HkkizQ4fD/8kCVRse80X4brGshLo3pa4YOSfu1oiR5AAEyGY CQb7hyHp+awcE3qe9kwcpBIwQQ7AWxJFgQZwWyWvpaJ1wvyuU25rd3SvYl+WJ9Ap0h5z ffI6TfHmSiEnpiL7PFYWagfZQj9PfdoKDqNJWq8N4XUspOVvnd4S337S7wtQU/0hXoB0 /K7Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amdcloud.onmicrosoft.com header.s=selector1-amdcloud-onmicrosoft-com header.b=GwkF2zed; spf=neutral (google.com: 40.107.80.79 is neither permitted nor denied by best guess record for domain of felix.kuehling@amd.com) smtp.mailfrom=Felix.Kuehling@amd.com Received: from NAM03-DM3-obe.outbound.protection.outlook.com (mail-eopbgr800079.outbound.protection.outlook.com. [40.107.80.79]) by mx.google.com with ESMTPS id j3si142785vsd.407.2019.06.12.10.54.38 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 12 Jun 2019 10:54:38 -0700 (PDT) Received-SPF: neutral (google.com: 40.107.80.79 is neither permitted nor denied by best guess record for domain of felix.kuehling@amd.com) client-ip=40.107.80.79; Authentication-Results: mx.google.com; dkim=pass header.i=@amdcloud.onmicrosoft.com header.s=selector1-amdcloud-onmicrosoft-com header.b=GwkF2zed; spf=neutral (google.com: 40.107.80.79 is neither permitted nor denied by best guess record for domain of felix.kuehling@amd.com) smtp.mailfrom=Felix.Kuehling@amd.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector1-amdcloud-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=qsr+DrOReLLHaqJmxCSSxEENrX8ySUtZsI5ISTYzod8=; b=GwkF2zed8tO1nmGK9ADP7/FnBwPJF6wleN6lBrJdt2wkjrGTyLosw4z38Xj1cQZY7++Z21SWY/Zy0lWP70GshNxPD7io0yiDMLJ00GglXInt7ajBItDXYL5mayF4qO6znKnkAOATFUDXk4ntjwk/6aam/7HE2QT/uWrA4USInW8= Received: from DM6PR12MB3947.namprd12.prod.outlook.com (10.255.174.156) by DM6PR12MB3049.namprd12.prod.outlook.com (20.178.30.91) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1965.13; Wed, 12 Jun 2019 17:54:33 +0000 Received: from DM6PR12MB3947.namprd12.prod.outlook.com ([fe80::5964:8c3c:1b5b:c480]) by DM6PR12MB3947.namprd12.prod.outlook.com ([fe80::5964:8c3c:1b5b:c480%2]) with mapi id 15.20.1987.010; Wed, 12 Jun 2019 17:54:33 +0000 From: "Kuehling, Felix" To: Jason Gunthorpe , "Deucher, Alexander" , "Yang, Philip" CC: "linux-rdma@vger.kernel.org" , "linux-mm@kvack.org" , "dri-devel@lists.freedesktop.org" , "amd-gfx@lists.freedesktop.org" Subject: Re: [PATCH v2 hmm 00/11] Various revisions from a locking/code review Thread-Topic: [PATCH v2 hmm 00/11] Various revisions from a locking/code review Thread-Index: AQHVHJfr1/69N5Ix7UmcwouP0m28vaaW5DsAgAFyWoA= Date: Wed, 12 Jun 2019 17:54:33 +0000 Message-ID: <5d3b0ae2-3662-cab2-5e6c-82912f32356a@amd.com> References: <20190606184438.31646-1-jgg@ziepe.ca> <20190611194858.GA27792@ziepe.ca> In-Reply-To: <20190611194858.GA27792@ziepe.ca> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [165.204.53.123] user-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 x-clientproxiedby: BYAPR03CA0018.namprd03.prod.outlook.com (2603:10b6:a02:a8::31) To DM6PR12MB3947.namprd12.prod.outlook.com (2603:10b6:5:1cb::28) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Felix.Kuehling@amd.com; x-ms-exchange-messagesentrepresentingtype: 1 x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 0f18e1d3-d8ba-4759-24ff-08d6ef5f06af x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(4618075)(2017052603328)(7193020);SRVR:DM6PR12MB3049; x-ms-traffictypediagnostic: DM6PR12MB3049: x-ms-exchange-purlcount: 2 x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:10000; x-forefront-prvs: 0066D63CE6 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(346002)(39860400002)(376002)(136003)(396003)(366004)(199004)(189003)(58126008)(6116002)(110136005)(3846002)(6486002)(68736007)(53936002)(5660300002)(6246003)(8936002)(6306002)(14454004)(6512007)(81166006)(6436002)(2906002)(53546011)(6506007)(316002)(386003)(99286004)(102836004)(8676002)(6636002)(52116002)(65826007)(31686004)(81156014)(4326008)(76176011)(54906003)(65806001)(229853002)(478600001)(66446008)(64756008)(66556008)(66946007)(65956001)(66066001)(26005)(186003)(72206003)(25786009)(86362001)(66476007)(31696002)(73956011)(71190400001)(7736002)(256004)(446003)(305945005)(2616005)(36756003)(966005)(11346002)(486006)(14444005)(476003)(64126003)(71200400001);DIR:OUT;SFP:1101;SCL:1;SRVR:DM6PR12MB3049;H:DM6PR12MB3947.namprd12.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: amd.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: H4QJCFxP6VFSnZxvta9eC2tTmLzHCrdA6KLZgwJlGFRGgzPTPyU6MvV2Fp2+ovYil1Ng3KioxIScK1DgEa+A7VKoL/FZepLhRm5nZTik4IsZlvZCmtV2YINuonplc9ZcI0T7b9myM/6z9ygFKmTo5NIfXSN6OYerHHmiZvUT08uIZiUFwsNR2+bm916ln7avIu8vn4epN6RysadNVVFgY5R0FgKzzfUvkeBUorFKHz3qJFQ8tPB2ZQtSK7Pa1PQrmtP9Nn5dZVDOCrfcDGrNDkS1FbanF1mRuE6ktbwrv+ZeZ0SsAU8wDzfeG7hp12JwpB7fIzxXoR/Hv6khFgmdTDyV8T/G0hTYtd8ujFXUownM7veuVNIXLYMbCloGhXyU914eNYHqnD7/SgrsTszLs3oP8uQogVyWrIRxxM50Pkk= Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0f18e1d3-d8ba-4759-24ff-08d6ef5f06af X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Jun 2019 17:54:33.5765 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: fkuehlin@amd.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3049 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: WytQaGlsaXBdDQoNCkhpIEphc29uLA0KDQpJJ20gb3V0IG9mIHRoZSBvZmZpY2UgdGhpcyB3ZWVr Lg0KDQpIaSBQaGlsaXAsIGNhbiB5b3UgZ2l2ZSB0aGlzIGEgZ28/IE5vdCBzdXJlIGhvdyBtdWNo IHlvdSd2ZSBiZWVuIA0KZm9sbG93aW5nIHRoaXMgcGF0Y2ggc2VyaWVzIHJldmlldy4gTWVzc2Fn ZSBvciBjYWxsIG1lIG9uIFNreXBlIHRvIA0KZGlzY3VzcyBhbnkgcXVlc3Rpb25zLg0KDQpUaGFu a3MsDQogwqAgRmVsaXgNCg0KT24gMjAxOS0wNi0xMSAxMjo0OCwgSmFzb24gR3VudGhvcnBlIHdy b3RlOg0KPiBPbiBUaHUsIEp1biAwNiwgMjAxOSBhdCAwMzo0NDoyN1BNIC0wMzAwLCBKYXNvbiBH dW50aG9ycGUgd3JvdGU6DQo+PiBGcm9tOiBKYXNvbiBHdW50aG9ycGUgPGpnZ0BtZWxsYW5veC5j b20+DQo+Pg0KPj4gRm9yIGhtbS5naXQ6DQo+Pg0KPj4gVGhpcyBwYXRjaCBzZXJpZXMgYXJpc2Vk IG91dCBvZiBkaXNjdXNzaW9ucyB3aXRoIEplcm9tZSB3aGVuIGxvb2tpbmcgYXQgdGhlDQo+PiBP RFAgY2hhbmdlcywgcGFydGljdWxhcmx5IGluZm9ybWVkIGJ5IHVzZSBhZnRlciBmcmVlIHJhY2Vz IHdlIGhhdmUgYWxyZWFkeQ0KPj4gZm91bmQgYW5kIGZpeGVkIGluIHRoZSBPRFAgY29kZSAodGhh bmtzIHRvIHN5emthbGxlcikgd29ya2luZyB3aXRoIG1tdQ0KPj4gbm90aWZpZXJzLCBhbmQgdGhl IGRpc2N1c3Npb24gd2l0aCBSYWxwaCBvbiBob3cgdG8gcmVzb2x2ZSB0aGUgbGlmZXRpbWUgbW9k ZWwuDQo+Pg0KPj4gT3ZlcmFsbCB0aGlzIGJyaW5ncyBpbiBhIHNpbXBsaWZpZWQgbG9ja2luZyBz Y2hlbWUgYW5kIGVhc3kgdG8gZXhwbGFpbg0KPj4gbGlmZXRpbWUgbW9kZWw6DQo+Pg0KPj4gICBJ ZiBhIGhtbV9yYW5nZSBpcyB2YWxpZCwgdGhlbiB0aGUgaG1tIGlzIHZhbGlkLCBpZiBhIGhtbSBp cyB2YWxpZCB0aGVuIHRoZSBtbQ0KPj4gICBpcyBhbGxvY2F0ZWQgbWVtb3J5Lg0KPj4NCj4+ICAg SWYgdGhlIG1tIG5lZWRzIHRvIHN0aWxsIGJlIGFsaXZlIChpZSB0byBsb2NrIHRoZSBtbWFwX3Nl bSwgZmluZCBhIHZtYSwgZXRjKQ0KPj4gICB0aGVuIHRoZSBtbWdldCBtdXN0IGJlIG9idGFpbmVk IHZpYSBtbWdldF9ub3RfemVybygpLg0KPj4NCj4+IExvY2tpbmcgb2YgbW0tPmhtbSBpcyBzaGlm dGVkIHRvIHVzZSB0aGUgbW1hcF9zZW0gY29uc2lzdGVudGx5IGZvciBhbGwNCj4+IHJlYWQvd3Jp dGUgYW5kIHVubG9ja2VkIGFjY2Vzc2VzIGFyZSByZW1vdmVkLg0KPj4NCj4+IFRoZSB1c2UgdW5s b2NrZWQgcmVhZHMgb24gJ2htbS0+ZGVhZCcgYXJlIGFsc28gZWxpbWluYXRlZCBpbiBmYXZvdXIg b2YgdXNpbmcNCj4+IHN0YW5kYXJkIG1tZ2V0KCkgbG9ja2luZyB0byBwcmV2ZW50IHRoZSBtbSBm cm9tIGJlaW5nIHJlbGVhc2VkLiBNYW55IG9mIHRoZQ0KPj4gZGVidWdnaW5nIGNoZWNrcyBvZiAh cmFuZ2UtPmhtbSBhbmQgIWhtbS0+bW0gYXJlIGRyb3BwZWQgaW4gZmF2b3VyIG9mIHBvaXNvbiAt DQo+PiB3aGljaCBpcyBtdWNoIGNsZWFyZXIgYXMgdG8gdGhlIGxpZmV0aW1lIGludGVudC4NCj4+ DQo+PiBUaGUgdHJhaWxpbmcgcGF0Y2hlcyBhcmUganVzdCBzb21lIHJhbmRvbSBjbGVhbnVwcyBJ IG5vdGljZWQgd2hlbiByZXZpZXdpbmcNCj4+IHRoaXMgY29kZS4NCj4+DQo+PiBUaGlzIHYyIGlu Y29ycG9yYXRlcyBhbG90IG9mIHRoZSBnb29kIG9mZiBsaXN0IGNoYW5nZXMgJiBmZWVkYmFjayBK ZXJvbWUgaGFkLA0KPj4gYW5kIGFsbCB0aGUgb24tbGlzdCBjb21tZW50cyB0b28uIEhvd2V2ZXIs IG5vdyB0aGF0IHdlIGhhdmUgdGhlIHNoYXJlZCBnaXQgSQ0KPj4gaGF2ZSBrZXB0IHRoZSBvbmUg bGluZSBjaGFuZ2UgdG8gbm91dmVhdV9zdm0uYyByYXRoZXIgdGhhbiB0aGUgY29tcGF0DQo+PiBm dW50aW9ucy4NCj4+DQo+PiBJIGJlbGlldmUgd2UgY2FuIHJlc29sdmUgdGhpcyBtZXJnZSBpbiB0 aGUgRFJNIHRyZWUgbm93IGFuZCBrZWVwIHRoZSBjb3JlDQo+PiBtbS9obW0uYyBjbGVhbi4gRFJN IG1haW50YWluZXJzLCBwbGVhc2UgY29ycmVjdCBtZSBpZiBJJ20gd3JvbmcuDQo+Pg0KPj4gSXQg aXMgb24gdG9wIG9mIGhtbS5naXQsIGFuZCBJIGhhdmUgYSBnaXQgdHJlZSBvZiB0aGlzIHNlcmll cyB0byBlYXNlIHRlc3RpbmcNCj4+IGhlcmU6DQo+Pg0KPj4gaHR0cHM6Ly9naXRodWIuY29tL2pn dW50aG9ycGUvbGludXgvdHJlZS9obW0NCj4+DQo+PiBUaGVyZSBhcmUgc3RpbGwgc29tZSBvcGVu IGxvY2tpbmcgaXNzdWVzLCBhcyBJIHRoaW5rIHRoaXMgcmVtYWlucyB1bmFkZHJlc3NlZDoNCj4+ DQo+PiBodHRwczovL2xvcmUua2VybmVsLm9yZy9saW51eC1tbS8yMDE5MDUyNzE5NTgyOS5HQjE4 MDE5QG1lbGxhbm94LmNvbS8NCj4+DQo+PiBJJ20gbG9va2luZyBmb3Igc29tZSBtb3JlIGFja3Ms IHJldmlld3MgYW5kIHRlc3RzIHNvIHRoaXMgY2FuIG1vdmUgYWhlYWQgdG8NCj4+IGhtbS5naXQu DQo+IEFNRCBGb2xrcywgdGhpcyBpcyBsb29raW5nIHByZXR0eSBnb29kIG5vdywgY2FuIHlvdSBw bGVhc2UgZ2l2ZSBhdA0KPiBsZWFzdCBhIFRlc3RlZC1ieSBmb3IgdGhlIG5ldyBkcml2ZXIgY29k ZSB1c2luZyB0aGlzIHRoYXQgSSBzZWUgaW4NCj4gbGludXgtbmV4dD8NCj4NCj4gVGhhbmtzLA0K PiBKYXNvbg0K