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=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, T_DKIMWL_WL_HIGH 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 7E0C7C46469 for ; Wed, 12 Sep 2018 17:47:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0E72E20880 for ; Wed, 12 Sep 2018 17:47:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=microsoft.com header.i=@microsoft.com header.b="Zc4nmD8M" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0E72E20880 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=microsoft.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727852AbeILWxM (ORCPT ); Wed, 12 Sep 2018 18:53:12 -0400 Received: from mail-dm3nam03on0103.outbound.protection.outlook.com ([104.47.41.103]:31331 "EHLO NAM03-DM3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727417AbeILWxM (ORCPT ); Wed, 12 Sep 2018 18:53:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=XiBehmwPyi27BO4zlLbLMLS0MoVsSaTRzoTWuCE4RBQ=; b=Zc4nmD8MDyTdF0byI1T62aeZf8iXCwoqOObg98FrDoKfwdgmDQmhzDfAh+d7UkK6rIK01Xho9HYUZoH0uqfmomMrbm5f7bGG5DsUf40VJlZzwvKMODlzKFp+5AyBJnRHXCMcT055CkJIFSDv6zmbxdbrUx+ssP4zEhuecRlC+4Y= Received: from MWHPR21MB0510.namprd21.prod.outlook.com (10.172.95.140) by MWHPR21MB0638.namprd21.prod.outlook.com (10.175.141.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1164.5; Wed, 12 Sep 2018 17:46:53 +0000 Received: from MWHPR21MB0510.namprd21.prod.outlook.com ([fe80::a9a4:7c1a:2713:ad83]) by MWHPR21MB0510.namprd21.prod.outlook.com ([fe80::a9a4:7c1a:2713:ad83%7]) with mapi id 15.20.1143.010; Wed, 12 Sep 2018 17:46:53 +0000 From: Pasha Tatashin To: Dan Williams , Alexander Duyck CC: linux-mm , LKML , linux-nvdimm , Michal Hocko , Dave Jiang , Ingo Molnar , Dave Hansen , =?utf-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Andrew Morton , Logan Gunthorpe , "Kirill A. Shutemov" Subject: Re: [PATCH 3/4] mm: Defer ZONE_DEVICE page initialization to the point where we init pgmap Thread-Topic: [PATCH 3/4] mm: Defer ZONE_DEVICE page initialization to the point where we init pgmap Thread-Index: AQHUSWAslrWv/zH2WkS0OitWO4yfnaTsrtUAgAAebwCAABFtAIAAD6yA Date: Wed, 12 Sep 2018 17:46:53 +0000 Message-ID: References: <20180910232615.4068.29155.stgit@localhost.localdomain> <20180910234354.4068.65260.stgit@localhost.localdomain> <7b96298e-9590-befd-0670-ed0c9fcf53d5@microsoft.com> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [137.117.57.82] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;MWHPR21MB0638;6:+Erw1LVILAQZPXK8Agg9OED7i1ntNB1VRZcAfbDZlIYbqgqMFx28351tTJnrTvx9yehXyk26yCxtbFbQ3jXe7/Gin2djfq2l3hbB+ql/+IrsSlvhvWHgapDZ7WLdQhbRRXVzwU5KL+cc2e/kMcplLsUR+r6SkXgbiPybcN4hjYzASFULhvIOu7evE/rUC0CDAnijS2Ynp2fAzTFgbPJ9cWV/xquqUSTRaD5NWynJlxGPYZnytPZPwJRQOrXlTU5FqA5JDAASs6s3CrhHoEiXU0mSlWZgMARpYnNra5p6mJiW2ynJpJkDsIXD1xXis5f7vBk+47asu3hLGxW3RtKTGkT1553Jor6iTf/xDVnLd6qtXmjNjKq7AWOwyFBDq7x/e849VNcY1XMytlbZcwaLO1KomYUD6hIUzl6i01EgV6zi9sIkrVEqJzl5T4Kdfsx/zytDMmi1KjraiMls/moUpg==;5:DX7DL3BYNKXmplYm4KxRRcOqa/il5TvlvsYAhBwanArOGySxS0d2PsUnZEM82X06hIH4yRLrtXTGnOGdebBrahYd85oClkdSIpo+ikKlfVP/0M2pliGYBxOu2q6yn0Fx8OfBIMzug7r3QKP4pGpGqc3mugV2R9LFxjIq1ivUM0E=;7:tnBclubSbHvsk7kPjQCr7LKSDmCUsylQCF4Jcz9IhR16H0Z7RZlaFirHzOMk9AXgQ2T1+haIuYOiL6z1go44c4uMtl7W1KaHzB6Ad1cH6UmireIxsVQKfTzsl8Vughs9dImor+y3P1SF6fXrUE7x8Vdgi94ruXJRl7lrGqvkYAWheOh/eNw0f952KjSuGayxG1LT4T76l1Tnt5KR5GqC8HJ17rIeJ0EGNQ1PQE1y5TxKwp8hDwAE1iBaY9Yr5+DU x-ms-exchange-antispam-srfa-diagnostics: SOS; x-ms-office365-filtering-correlation-id: fd873c65-c4f9-4cfa-bb0b-08d618d7b9e0 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(7020095)(4652040)(8989137)(4534165)(4627221)(201703031133081)(201702281549075)(8990107)(5600074)(711020)(4618075)(2017052603328)(7193020);SRVR:MWHPR21MB0638; x-ms-traffictypediagnostic: MWHPR21MB0638: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(89211679590171)(85827821059158); x-ms-exchange-senderadcheck: 1 x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(6040522)(2401047)(8121501046)(5005006)(3002001)(3231344)(944501410)(52105095)(2018427008)(10201501046)(93006095)(93001095)(6055026)(149027)(150027)(6041310)(20161123564045)(20161123558120)(20161123562045)(20161123560045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(201708071742011)(7699050)(76991041);SRVR:MWHPR21MB0638;BCL:0;PCL:0;RULEID:;SRVR:MWHPR21MB0638; x-forefront-prvs: 07935ACF08 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(39860400002)(366004)(396003)(376002)(346002)(136003)(199004)(189003)(72206003)(8676002)(81166006)(53546011)(10090500001)(256004)(10290500003)(478600001)(5660300001)(7416002)(66066001)(3846002)(6116002)(486006)(446003)(6246003)(2616005)(11346002)(14454004)(81156014)(476003)(99286004)(6436002)(6486002)(110136005)(105586002)(54906003)(6512007)(53936002)(5250100002)(8936002)(2900100001)(229853002)(106356001)(2906002)(26005)(102836004)(316002)(186003)(68736007)(6346003)(76176011)(22452003)(7736002)(6506007)(86362001)(305945005)(97736004)(86612001)(31696002)(36756003)(31686004)(4326008)(39060400002)(25786009)(93886005);DIR:OUT;SFP:1102;SCL:1;SRVR:MWHPR21MB0638;H:MWHPR21MB0510.namprd21.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Pavel.Tatashin@microsoft.com; x-microsoft-antispam-message-info: 9HD5qOlE7WYizcORx45eIggqRwGQXwL7xl3L7GgXuGD5t+SmylAN5NSww4md5VCrgQJfookH+L0W2sowH1BL0aMqjCnByMeBtNgIvkqXM9W0SmYYIGyk83pM/N3o1Dl19jYjOljMCXPKCRg/GWO/8Mshx8lYGO2Hx+z/gOJy/9DvjOFeBIYTdQpo6NiX8rIqcjQGXcywKGZWYEs9sxnBJY/dk4X/6HK6adFJ3wpNbx6nJJKbWfwkOAJDOP80+Eo8QwyEtoIGCuTcBS14rpnFnJMg7wWEWxB09DB6PzBcvRxHPvWWqbhNgFvm7mMI4uJif2dtvU62eKOm3k4+FqmCZpiqIMtCY/DM285X010Q8+s= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: <6BC95DA5D70D7B4B9356E05A6683025F@namprd21.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: fd873c65-c4f9-4cfa-bb0b-08d618d7b9e0 X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Sep 2018 17:46:53.2760 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR21MB0638 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DQoNCk9uIDkvMTIvMTggMTI6NTAgUE0sIERhbiBXaWxsaWFtcyB3cm90ZToNCj4gT24gV2VkLCBT ZXAgMTIsIDIwMTggYXQgODo0OCBBTSwgQWxleGFuZGVyIER1eWNrDQo+IDxhbGV4YW5kZXIuZHV5 Y2tAZ21haWwuY29tPiB3cm90ZToNCj4+IE9uIFdlZCwgU2VwIDEyLCAyMDE4IGF0IDY6NTkgQU0g UGFzaGEgVGF0YXNoaW4NCj4+IDxQYXZlbC5UYXRhc2hpbkBtaWNyb3NvZnQuY29tPiB3cm90ZToN Cj4+Pg0KPj4+IEhpIEFsZXgsDQo+Pg0KPj4gSGkgUGF2ZWwsDQo+Pg0KPj4+IFBsZWFzZSByZS1i YXNlIG9uIGxpbnV4LW5leHQsICBtZW1tYXBfaW5pdF96b25lKCkgaGFzIGJlZW4gdXBkYXRlZCB0 aGVyZQ0KPj4+IGNvbXBhcmVkIHRvIG1haW5saW5lLiBZb3UgbWlnaHQgZXZlbiBmaW5kIGEgd2F5 IHRvIHVuaWZ5IHNvbWUgcGFydHMgb2YNCj4+PiBtZW1tYXBfaW5pdF96b25lIGFuZCBtZW1tYXBf aW5pdF96b25lX2RldmljZSBhcyBtZW1tYXBfaW5pdF96b25lKCkgaXMgYQ0KPj4+IGxvdCBzaW1w bGVyIG5vdy4NCj4+DQo+PiBUaGlzIHBhdGNoIGFwcGxpZWQgdG8gdGhlIGxpbnV4LW5leHQgdHJl ZSB3aXRoIG9ubHkgYSBsaXR0bGUgYml0IG9mDQo+PiBmdXp6LiBJdCBsb29rcyBsaWtlIGl0IGlz IG1vc3RseSBkdWUgdG8gc29tZSBjb2RlIHlvdSBoYWQgYWRkZWQgYWJvdmUNCj4+IHRoZSBmdW5j dGlvbiBhcyB3ZWxsLiBJIGhhdmUgdXBkYXRlZCB0aGlzIHBhdGNoIHNvIHRoYXQgaXQgd2lsbCBh cHBseQ0KPj4gdG8gYm90aCBsaW51eCBhbmQgbGludXgtbmV4dCBieSBqdXN0IG1vdmluZyB0aGUg bmV3IGZ1bmN0aW9uIHRvDQo+PiB1bmRlcm5lYXRoIG1lbW1hcF9pbml0X3pvbmUgaW5zdGVhZCBv ZiBhYm92ZSBpdC4NCj4+DQo+Pj4gSSB0aGluayBfX2luaXRfc2luZ2xlX3BhZ2UoKSBzaG91bGQg c3RheSBsb2NhbCB0byBwYWdlX2FsbG9jLmMgdG8ga2VlcA0KPj4+IHRoZSBpbmxpbmluZyBvcHRp bWl6YXRpb24uDQo+Pg0KPj4gSSBhZ3JlZS4gSW4gYWRkaXRpb24gaXQgd2lsbCBtYWtlIHB1bGxp bmcgY29tbW9uIGluaXQgdG9nZXRoZXIgaW50bw0KPj4gb25lIHNwYWNlIGVhc2llci4gSSB3b3Vs ZCByYXRoZXIgbm90IGhhdmUgdXMgY3JlYXRlIGFuIG9wcG9ydHVuaXR5IGZvcg0KPj4gdGhpbmdz IHRvIGZ1cnRoZXIgZGl2ZXJnZSBieSBtYWtpbmcgaXQgYXZhaWxhYmxlIGZvciBhbnlib2R5IHRv IHVzZS4NCj4gDQo+IEknbGwgYnV5IHRoZSBpbmxpbmUgYXJndW1lbnQgZm9yIGtlZXBpbmcgdGhl IG5ldyByb3V0aW5lIGluDQo+IHBhZ2VfYWxsb2MuYywgYnV0IEkgb3RoZXJ3aXNlIGRvIG5vdCBz ZWUgdGhlIGRpdmVyZ2VuY2UgZGFuZ2VyIG9yDQo+ICJtYWtpbmcgX19pbml0X3NpbmdsZV9wYWdl KCkgYXZhaWxhYmxlIGZvciBhbnlib2R5IiBnaXZlbiB0aGUgdGhlDQo+IGRlY2xhcmF0aW9uIGlz IGxpbWl0ZWQgaW4gc2NvcGUgdG8gYSBtbS8gbG9jYWwgaGVhZGVyIGZpbGUuDQo+IA0KDQpIaSBE YW4sDQoNCkl0IGlzIG11Y2ggaGFyZGVyIGZvciBjb21waWxlciB0byBkZWNpZGUgdGhhdCBmdW5j dGlvbiBjYW4gYmUgaW5saW5lZA0Kb25jZSBpdCBpcyBub24tc3RhdGljLiBPZiBjb3Vyc2UsIHdl IGNhbiBzaW1wbHkgbW92ZSB0aGlzIGZ1bmN0aW9uIHRvIGENCmhlYWRlciBmaWxlLCBhbmQgZGVj bGFyZSBpdCBpbmxpbmUgdG8gYmVnaW4gd2l0aC4NCg0KQnV0LCBzdGlsbCBfX2luaXRfc2luZ2xl X3BhZ2UoKSBpcyBzbyBwZXJmb3JtYW5jZSBzZW5zaXRpdmUsIHRoYXQgSSdkDQpsaWtlIHRvIHJl ZHVjZSBudW1iZXIgb2YgY2FsbGVycyB0byB0aGlzIGZ1bmN0aW9uLCBhbmQga2VlcCBpdCBpbiAu YyBmaWxlLg0KDQpUaGFuayB5b3UsDQpQYXZlbA==