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, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 7B06DC31E45 for ; Thu, 13 Jun 2019 20:40:50 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 251512133D for ; Thu, 13 Jun 2019 20:40:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=Mellanox.com header.i=@Mellanox.com header.b="URF2uSJY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 251512133D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mellanox.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id CB2F86B000A; Thu, 13 Jun 2019 16:40:49 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C64E88E0002; Thu, 13 Jun 2019 16:40:49 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B2D256B000D; Thu, 13 Jun 2019 16:40:49 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mail-ed1-f70.google.com (mail-ed1-f70.google.com [209.85.208.70]) by kanga.kvack.org (Postfix) with ESMTP id 602726B000A for ; Thu, 13 Jun 2019 16:40:49 -0400 (EDT) Received: by mail-ed1-f70.google.com with SMTP id d13so474385edo.5 for ; Thu, 13 Jun 2019 13:40:49 -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:content-id:content-transfer-encoding:mime-version; bh=PX9Eys8Q8xmnOpn1Ekl1bpVYtyk5txyOqqCNrhyPFYU=; b=jC5uFWbFtyB+ayrMyyw2PM7WwbUpAyPuSSOsrpF36pnTnoq0agsuVeyQ65ecFx0VdJ iAOtUnGfPkdAGDJWCj/XuSCc3w/iOrn21sdszswTxXP3x7mRNm48Q4rMFd1BxtM/Jxuj p4qypNl9Hj9JkM7mus3Gj4djRK7w++jMcXkGO7KD3oPn65qT3EaCo7zb6e5yLc4UzSZm lDLJq1/8aBfQpSdtfnTxhDCPntVnAg4uLUyaOJqu0JI3b6hvLoPRhUJLIEjNAzkyWnV3 s5Zz22biGxMss/8zK0sRwbvl+JwvWM0/4iyPKH2DAxisgQWG4ZLbiC6HhkBUVHmDJsKx 0ejg== X-Gm-Message-State: APjAAAXNiYdwY5l073BZFaCmbLjPkrzZgHc2/gzYIPxMOnDIBCDRzZDI tDExSjLHrJCj9gGfI2gBE4b6AowyFkZQHMkw6XGb0UTEUc0Ykg5wGn18Yo8FEW7kq8RLHuObBRw aqTWADixxJIighrSFdQxYgKiZBVqSpd3iAQW0A1zxZdc6tjPR1QeH+AKbvPaEhwgaAQ== X-Received: by 2002:a17:906:7ac5:: with SMTP id k5mr3326422ejo.128.1560458448930; Thu, 13 Jun 2019 13:40:48 -0700 (PDT) X-Google-Smtp-Source: APXvYqwGQoN6Q9egSpc19uTjx3LgnsX+QEeREuXy9CMxKBJoRndTHYOOOHm3kJdmP47mvNF74baD X-Received: by 2002:a17:906:7ac5:: with SMTP id k5mr3326361ejo.128.1560458448013; Thu, 13 Jun 2019 13:40:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1560458448; cv=none; d=google.com; s=arc-20160816; b=WA2PNWvkEH3hTBVFoL5CPx3tKKH87d5kGaVXCanCVlEx9gxZoRMvcDdvRnPWHGDdE5 Wx1nRf2HG17QtUKU75cq5VsfuG9KAvEuGNjnQ0crcUqs+IOfNWywlQF28GArkkgUAkMp 43xiS75+mtexLP2qzycA2eIivum0cbB/B/Bc6MFe4baGAa3PEouMl35jzMvLpywnfSZ8 ErOguqwKwIhLS4qPdAFOj4036xJtgdv9kPw3mmhYahtr4LdFE35kjMSktPhh07Ezxi0e uIA4xoKcg/sjBl9T4Dl9Ms3pMwXLWfKORjcwPl8S/RO5tca4fCGYGN8pIQpSf2YmedPV ZEXg== 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:content-language :accept-language:in-reply-to:references:message-id:date:thread-index :thread-topic:subject:cc:to:from:dkim-signature; bh=PX9Eys8Q8xmnOpn1Ekl1bpVYtyk5txyOqqCNrhyPFYU=; b=GSZGDOGU8yJg80hxfTxFx0jX6vQ0Kq0zPe8jsV2TB57EWvlFmtnNydouK/qCP2Fpfw zyDu0XMR4DSSyEjzydtIytfcePNLE0XuK2QBmCTbUEIDCmx37RzN9rb1QGvh3H4UezC+ N8pPm2fZUm+8jJT0ZBs6TjkMubSItySw3mVRTRc3GG2MaJbmZVQY2N/kpDfJTX4XbtCC RwCjYyxzKaTnxYF5bS8yuGTrLwWyWGS+ko8RTSLsYxcQinlYz9EGOexgmQuzw4zOlfNJ SkvnqmTDOh2+nvXFR+vUZbWnHlqUO34KPiHM30bb82CavBcYNNdlP4EK4j+cSs//tQgK rCPA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@Mellanox.com header.s=selector2 header.b=URF2uSJY; spf=pass (google.com: domain of jgg@mellanox.com designates 40.107.2.82 as permitted sender) smtp.mailfrom=jgg@mellanox.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mellanox.com Received: from EUR02-VE1-obe.outbound.protection.outlook.com (mail-eopbgr20082.outbound.protection.outlook.com. [40.107.2.82]) by mx.google.com with ESMTPS id i20si633691ejv.210.2019.06.13.13.40.47 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 13 Jun 2019 13:40:47 -0700 (PDT) Received-SPF: pass (google.com: domain of jgg@mellanox.com designates 40.107.2.82 as permitted sender) client-ip=40.107.2.82; Authentication-Results: mx.google.com; dkim=pass header.i=@Mellanox.com header.s=selector2 header.b=URF2uSJY; spf=pass (google.com: domain of jgg@mellanox.com designates 40.107.2.82 as permitted sender) smtp.mailfrom=jgg@mellanox.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mellanox.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Mellanox.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=PX9Eys8Q8xmnOpn1Ekl1bpVYtyk5txyOqqCNrhyPFYU=; b=URF2uSJYN6xjfsDoOg3OcSWCsk/8ctWmC21ScNLKDpkwEtHJ77Vj0z41hA5Ec74JGDldBLZArLu5+S1sKmWbY1DMZNe7mhUfYpp2fx5Q/f3aOCCLDECz4wNM3EafC1Z9gcgvAOWNOJa9Jk5hWMKGL/4tbDvR5wOkPbeaKzUyz1g= Received: from VI1PR05MB4141.eurprd05.prod.outlook.com (10.171.182.144) by VI1PR05MB5455.eurprd05.prod.outlook.com (20.177.201.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1987.12; Thu, 13 Jun 2019 20:40:46 +0000 Received: from VI1PR05MB4141.eurprd05.prod.outlook.com ([fe80::c16d:129:4a40:9ba1]) by VI1PR05MB4141.eurprd05.prod.outlook.com ([fe80::c16d:129:4a40:9ba1%6]) with mapi id 15.20.1987.012; Thu, 13 Jun 2019 20:40:46 +0000 From: Jason Gunthorpe To: Dan Williams CC: Christoph Hellwig , =?utf-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Ben Skeggs , Linux MM , "nouveau@lists.freedesktop.org" , Maling list - DRI developers , linux-nvdimm , "linux-pci@vger.kernel.org" , Linux Kernel Mailing List , Andrew Morton Subject: Re: dev_pagemap related cleanups Thread-Topic: dev_pagemap related cleanups Thread-Index: AQHVIcx5DdVrUhs/HUiF5V2FmmsvzKaZ58OAgAAlLoA= Date: Thu, 13 Jun 2019 20:40:46 +0000 Message-ID: <20190613204043.GD22062@mellanox.com> References: <20190613094326.24093-1-hch@lst.de> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: AM5PR0602CA0012.eurprd06.prod.outlook.com (2603:10a6:203:a3::22) To VI1PR05MB4141.eurprd05.prod.outlook.com (2603:10a6:803:4d::16) authentication-results: spf=none (sender IP is ) smtp.mailfrom=jgg@mellanox.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [156.34.55.100] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: de96dcdd-fcb6-4b31-c96c-08d6f03f6962 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(5600148)(711020)(4605104)(1401327)(4618075)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7193020);SRVR:VI1PR05MB5455; x-ms-traffictypediagnostic: VI1PR05MB5455: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:1751; x-forefront-prvs: 0067A8BA2A x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(376002)(396003)(366004)(39860400002)(136003)(346002)(199004)(189003)(68736007)(53936002)(7116003)(14454004)(476003)(486006)(76176011)(1076003)(2616005)(256004)(14444005)(229853002)(8676002)(66476007)(66946007)(6436002)(66556008)(7416002)(6116002)(64756008)(446003)(81166006)(81156014)(11346002)(73956011)(6512007)(3846002)(8936002)(6486002)(66066001)(86362001)(2906002)(102836004)(6246003)(6916009)(478600001)(6506007)(66446008)(186003)(4326008)(52116002)(33656002)(36756003)(5660300002)(66574012)(99286004)(26005)(7736002)(71200400001)(71190400001)(316002)(25786009)(305945005)(54906003)(53546011)(386003);DIR:OUT;SFP:1101;SCL:1;SRVR:VI1PR05MB5455;H:VI1PR05MB4141.eurprd05.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: mellanox.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: VOUbwNTtQRybG06If3HGlhEeAdyRzVHyFE1PeYAnM2YST+XoV0HGXZmSRan2NLI4WzAL1uZHMOtxy2X19FOcN+ugIzEDUFaX/y9lsF432qn7eSAyrVCYonDHrej64NV4alsmCSSJokb9RspANzH4x63s7VqvMHLgzo59lUHDsWdAEVbzpL7WQ18EWRni5TbqLfFiUPRVpSCZGqmJDVxOTingKPJqTbNp+v0SquuxNy3Mex+3+W3QOi7ysRhyLQb0zSCh5J5QVp0cRn132iQGoWMQelu0ugQqizw44PX87UzQ2V2o6rwl6/4Hnvt21dLXxJjYf8VqxNV1nOX9BSxMnePDL//+83pg+owX+oZg6X73UgwJVYNPVw4bnFul+YoMR4T2/va4ViKQdFdOkUW3qT7Y3anPGP/LSkSZAo/2xrw= Content-Type: text/plain; charset="utf-8" Content-ID: <865564E19763524E9F69913C820BFA34@eurprd05.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: de96dcdd-fcb6-4b31-c96c-08d6f03f6962 X-MS-Exchange-CrossTenant-originalarrivaltime: 13 Jun 2019 20:40:46.4819 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: jgg@mellanox.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR05MB5455 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: T24gVGh1LCBKdW4gMTMsIDIwMTkgYXQgMTE6Mjc6MzlBTSAtMDcwMCwgRGFuIFdpbGxpYW1zIHdy b3RlOg0KPiBPbiBUaHUsIEp1biAxMywgMjAxOSBhdCAyOjQzIEFNIENocmlzdG9waCBIZWxsd2ln IDxoY2hAbHN0LmRlPiB3cm90ZToNCj4gPg0KPiA+IEhpIERhbiwgSsOpcsO0bWUgYW5kIEphc29u LA0KPiA+DQo+ID4gYmVsb3cgaXMgYSBzZXJpZXMgdGhhdCBjbGVhbnMgdXAgdGhlIGRldl9wYWdl bWFwIGludGVyZmFjZSBzbyB0aGF0DQo+ID4gaXQgaXMgbW9yZSBlYXNpbHkgdXNhYmxlLCB3aGlj aCByZW1vdmVzIHRoZSBuZWVkIHRvIHdyYXAgaXQgaW4gaG1tDQo+ID4gYW5kIHRodXMgYWxsb3dp bmcgdG8ga2lsbCBhIGxvdCBvZiBjb2RlDQo+ID4NCj4gPiBEaWZmc3RhdDoNCj4gPg0KPiA+ICAy MiBmaWxlcyBjaGFuZ2VkLCAyNDUgaW5zZXJ0aW9ucygrKSwgODAyIGRlbGV0aW9ucygtKQ0KPiAN Cj4gSG9vcmF5IQ0KPiANCj4gPiBHaXQgdHJlZToNCj4gPg0KPiA+ICAgICBnaXQ6Ly9naXQuaW5m cmFkZWFkLm9yZy91c2Vycy9oY2gvbWlzYy5naXQgaG1tLWRldm1lbS1jbGVhbnVwDQo+IA0KPiBJ IGp1c3QgcmVhbGl6ZWQgdGhpcyBjb2xsaWRlcyB3aXRoIHRoZSBkZXZfcGFnZW1hcCByZWxlYXNl IHJld29yayBpbg0KPiBBbmRyZXcncyB0cmVlIChjb21taXQgaWRzIGJlbG93IGFyZSBmcm9tIG5l eHQuZ2l0IGFuZCBhcmUgbm90IHN0YWJsZSkNCj4gDQo+IDQ0MjJlZTg0NzZmMCBtbS9kZXZtX21l bXJlbWFwX3BhZ2VzOiBmaXggZmluYWwgcGFnZSBwdXQgcmFjZQ0KPiA3NzFmMDcxNGQwZGMgUENJ L1AyUERNQTogdHJhY2sgcGdtYXAgcmVmZXJlbmNlcyBwZXIgcmVzb3VyY2UsIG5vdCBnbG9iYWxs eQ0KPiBhZjM3MDg1ZGU5MDYgbGliL2dlbmFsbG9jOiBpbnRyb2R1Y2UgY2h1bmsgb3duZXJzDQo+ IGUwMDQ3ZmY4YWE3NyBQQ0kvUDJQRE1BOiBmaXggdGhlIGdlbl9wb29sX2FkZF92aXJ0KCkgZmFp bHVyZSBwYXRoDQo+IDAzMTVkNDdkNmFlOSBtbS9kZXZtX21lbXJlbWFwX3BhZ2VzOiBpbnRyb2R1 Y2UgZGV2bV9tZW11bm1hcF9wYWdlcw0KPiAyMTY0NzVjN2VhYTggZHJpdmVycy9iYXNlL2RldnJl czogaW50cm9kdWNlIGRldm1fcmVsZWFzZV9hY3Rpb24oKQ0KPiANCj4gQ09ORkxJQ1QgKGNvbnRl bnQpOiBNZXJnZSBjb25mbGljdCBpbiB0b29scy90ZXN0aW5nL252ZGltbS90ZXN0L2lvbWFwLmMN Cj4gQ09ORkxJQ1QgKGNvbnRlbnQpOiBNZXJnZSBjb25mbGljdCBpbiBtbS9obW0uYw0KPiBDT05G TElDVCAoY29udGVudCk6IE1lcmdlIGNvbmZsaWN0IGluIGtlcm5lbC9tZW1yZW1hcC5jDQo+IENP TkZMSUNUIChjb250ZW50KTogTWVyZ2UgY29uZmxpY3QgaW4gaW5jbHVkZS9saW51eC9tZW1yZW1h cC5oDQo+IENPTkZMSUNUIChjb250ZW50KTogTWVyZ2UgY29uZmxpY3QgaW4gZHJpdmVycy9wY2kv cDJwZG1hLmMNCj4gQ09ORkxJQ1QgKGNvbnRlbnQpOiBNZXJnZSBjb25mbGljdCBpbiBkcml2ZXJz L252ZGltbS9wbWVtLmMNCj4gQ09ORkxJQ1QgKGNvbnRlbnQpOiBNZXJnZSBjb25mbGljdCBpbiBk cml2ZXJzL2RheC9kZXZpY2UuYw0KPiBDT05GTElDVCAoY29udGVudCk6IE1lcmdlIGNvbmZsaWN0 IGluIGRyaXZlcnMvZGF4L2RheC1wcml2YXRlLmgNCj4gDQo+IFBlcmhhcHMgd2Ugc2hvdWxkIHB1 bGwgdGhvc2Ugb3V0IGFuZCByZXNlbmQgdGhlbSB0aHJvdWdoIGhtbS5naXQ/DQoNCkl0IGNvdWxk IGJlIGRvbmUgLSBidXQgaG93IGJhZCBpcyB0aGUgY29uZmxpY3QgcmVzb2x1dGlvbj8NCg0KSSdk IGJlIG1vcmUgY29tZm9ydGFibGUgdG8gdGFrZSBhIFBSIGZyb20geW91IHRvIG1lcmdlIGludG8g aG1tLmdpdCwNCnJhdGhlciB0aGFuIHJhdyBwYXRjaGVzLCB0aGVuIGFwcGx5IENIJ3Mgc2VyaWVz IG9uIHRvcC4gSSB0aGluay4NCg0KVGhhdCB3YXkgaWYgc29tZXRoaW5nIGdvZXMgd3JvbmcgeW91 IGNhbiBzZW5kIHlvdXIgUFIgdG8gTGludXMNCmRpcmVjdGx5Lg0KDQo+IEl0IGFsc28gdHVybnMg b3V0IHRoZSBudmRpbW0gdW5pdCB0ZXN0cyBjcmFzaCB3aXRoIHRoaXMgc2lnbmF0dXJlIG9uDQo+ IHRoYXQgYnJhbmNoIHdoZXJlIGJhc2UgdjUuMi1yYzMgcGFzc2VzOg0KPiANCj4gICAgIEJVRzog a2VybmVsIE5VTEwgcG9pbnRlciBkZXJlZmVyZW5jZSwgYWRkcmVzczogMDAwMDAwMDAwMDAwMDAw OA0KPiAgICAgWy4uXQ0KPiAgICAgQ1BVOiAxNSBQSUQ6IDE0MTQgQ29tbTogbHQtbGlibmRjdGwg VGFpbnRlZDogRyAgICAgICAgICAgT0UNCj4gNS4yLjAtcmMzKyAjMzM5OQ0KPiAgICAgSGFyZHdh cmUgbmFtZTogUUVNVSBTdGFuZGFyZCBQQyAoaTQ0MEZYICsgUElJWCwgMTk5NiksIEJJT1MgMC4w LjAgMDIvMDYvMjAxNQ0KPiAgICAgUklQOiAwMDEwOnBlcmNwdV9yZWZfa2lsbF9hbmRfY29uZmly bSsweDFlLzB4MTgwDQo+ICAgICBbLi5dDQo+ICAgICBDYWxsIFRyYWNlOg0KPiAgICAgIHJlbGVh c2Vfbm9kZXMrMHgyMzQvMHgyODANCj4gICAgICBkZXZpY2VfcmVsZWFzZV9kcml2ZXJfaW50ZXJu YWwrMHhlOC8weDFiMA0KPiAgICAgIGJ1c19yZW1vdmVfZGV2aWNlKzB4ZjIvMHgxNjANCj4gICAg ICBkZXZpY2VfZGVsKzB4MTY2LzB4MzcwDQo+ICAgICAgdW5yZWdpc3Rlcl9kZXZfZGF4KzB4MjMv MHg1MA0KPiAgICAgIHJlbGVhc2Vfbm9kZXMrMHgyMzQvMHgyODANCj4gICAgICBkZXZpY2VfcmVs ZWFzZV9kcml2ZXJfaW50ZXJuYWwrMHhlOC8weDFiMA0KPiAgICAgIHVuYmluZF9zdG9yZSsweDk0 LzB4MTIwDQo+ICAgICAga2VybmZzX2ZvcF93cml0ZSsweGYwLzB4MWEwDQo+ICAgICAgdmZzX3dy aXRlKzB4YjcvMHgxYjANCj4gICAgICBrc3lzX3dyaXRlKzB4NWMvMHhkMA0KPiAgICAgIGRvX3N5 c2NhbGxfNjQrMHg2MC8weDI0MA0KDQpUb28gYmFkIHRoZSB0cmFjZSBkaWRuJ3Qgc2F5IHdoaWNo IGRldm0gY2xlYW51cCB0cmlnZ2VyZWQgaXQuLiBEaWQNCmRldl9wYWdlbWFwX3BlcmNwdV9leGl0 IGdldCBjYWxsZWQgd2l0aCBhIE5VTEwgcGdtYXAtPnJlZiA/DQoNCkphc29uDQo=