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=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no 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 F1480C4363A for ; Mon, 26 Oct 2020 18:57:44 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 404BE21D41 for ; Mon, 26 Oct 2020 18:57:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=intel.onmicrosoft.com header.i=@intel.onmicrosoft.com header.b="CNt2PJpH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 404BE21D41 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 3B5D16B005C; Mon, 26 Oct 2020 14:57:43 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 33DF66B0062; Mon, 26 Oct 2020 14:57:43 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 191566B0068; Mon, 26 Oct 2020 14:57:43 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0112.hostedemail.com [216.40.44.112]) by kanga.kvack.org (Postfix) with ESMTP id D63B66B005C for ; Mon, 26 Oct 2020 14:57:42 -0400 (EDT) Received: from smtpin03.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 64612180AD801 for ; Mon, 26 Oct 2020 18:57:42 +0000 (UTC) X-FDA: 77414985564.03.value05_5b0d91827275 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin03.hostedemail.com (Postfix) with ESMTP id 3474328A4E9 for ; Mon, 26 Oct 2020 18:57:42 +0000 (UTC) X-HE-Tag: value05_5b0d91827275 X-Filterd-Recvd-Size: 12359 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by imf20.hostedemail.com (Postfix) with ESMTP for ; Mon, 26 Oct 2020 18:57:38 +0000 (UTC) IronPort-SDR: nm2skm1kZtT2IQYgTO+AqchlVjVOVspc9gyuchHkc0h9PKyK3sL+h/kdrLsLG2oQz7LHZswFG3 WP0X9hIFFN6g== X-IronPort-AV: E=McAfee;i="6000,8403,9786"; a="165381217" X-IronPort-AV: E=Sophos;i="5.77,420,1596524400"; d="scan'208";a="165381217" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Oct 2020 11:57:36 -0700 IronPort-SDR: kDCuGF/INurHLzkGxp1atk6PecmLBn+41125sYA6Q4z690BfomjRZkbSkFslIQU4FbWDNQy8SR hMAuuCKdljbw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,420,1596524400"; d="scan'208";a="361099020" Received: from orsmsx601.amr.corp.intel.com ([10.22.229.14]) by orsmga007.jf.intel.com with ESMTP; 26 Oct 2020 11:57:36 -0700 Received: from orsmsx611.amr.corp.intel.com (10.22.229.24) by ORSMSX601.amr.corp.intel.com (10.22.229.14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 26 Oct 2020 11:57:35 -0700 Received: from orsmsx601.amr.corp.intel.com (10.22.229.14) by ORSMSX611.amr.corp.intel.com (10.22.229.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 26 Oct 2020 11:57:35 -0700 Received: from ORSEDG601.ED.cps.intel.com (10.7.248.6) by orsmsx601.amr.corp.intel.com (10.22.229.14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5 via Frontend Transport; Mon, 26 Oct 2020 11:57:35 -0700 Received: from NAM10-DM6-obe.outbound.protection.outlook.com (104.47.58.101) by edgegateway.intel.com (134.134.137.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.1713.5; Mon, 26 Oct 2020 11:57:35 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=YRtcACMT18VEnjz5dQkzdP9yk8z4iGtrnCS5VScWmhATTM/DBgoNGeRA2xaEpZMToTX38H6JqIcrlhV3P9T5KtSqHQDULXRDmLmVsvKCMza4708Wj/xhUmb+GqAjLpX5sSLTLgJD63VFDF7iZVJjGuo5YX9lowV0C5UEZdr11hbDmhYmbEBX6J7umyur2ewrLhCN2v0IgwhqaGzH3ulhTUe2hmcFMCUFYd2DFCy6clFJvQ0dU8ttdLDnsccnkeZB1AaVT8odD6yuUb3nQ8DDneXcwktwJoS6qqPtIbOEWCbgLJt1p4oKGrZeVz9ReSyPN0rbA44BI0QIq0xr3BxRfQ== 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-SenderADCheck; bh=VT/jmZB+JeNW9FSro3Zu1DhxjPqZtbl1rGi0ooZOMnY=; b=hqwrYaHKk2Eus3utHyYsdXAmPWEibzmLZBwpiKeF9rOWvqaieXUzL2THop+AbiJRVw4JnImeHGZoW361kiS0Z1kqQstI75v9daT8Zxgk/0H97TxM7Bm3rN8SSAZdkDttaMCWK21NJ9Swqm9BbeXig/OAgSxmTm8FzyVZWIj6xMYlyV7giJFEMD+xOdVcHFLWHD5+P3cmcrDXxtvvdq8RAMG50UQFxyVg9NHRNNFZk7VNqoJc2BSOUKmPpBF13J8U2Dz8Q1n5Mdfs9NhaXC2SYDtmwp+gdYtYQN+5261pBY11mLwexBjTlgu4RaZD6JBkEtY7xDTfbIxv/FeLi1Li3g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel.onmicrosoft.com; s=selector2-intel-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=VT/jmZB+JeNW9FSro3Zu1DhxjPqZtbl1rGi0ooZOMnY=; b=CNt2PJpHMNccCX8emcaKNwstcrNWJNuoOsjMVCdQA/8OzUDsVa3ZfUeMFsGiq90B4G/PUysEDYx59me+g8b+oWfZ3Ey6WzIBmuVPzF6gWaLtFtG1iriEShwaP1X/Fu1HOkpgyB1msqz4qsfFN/ujGdJxnkAFrsxbyMC1rDg0hSE= Received: from SN6PR11MB3184.namprd11.prod.outlook.com (2603:10b6:805:bd::17) by SN6PR11MB2670.namprd11.prod.outlook.com (2603:10b6:805:61::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3477.25; Mon, 26 Oct 2020 18:57:33 +0000 Received: from SN6PR11MB3184.namprd11.prod.outlook.com ([fe80::b901:8e07:4340:6704]) by SN6PR11MB3184.namprd11.prod.outlook.com ([fe80::b901:8e07:4340:6704%7]) with mapi id 15.20.3477.028; Mon, 26 Oct 2020 18:57:33 +0000 From: "Edgecombe, Rick P" To: "rppt@kernel.org" CC: "david@redhat.com" , "cl@linux.com" , "gor@linux.ibm.com" , "hpa@zytor.com" , "peterz@infradead.org" , "catalin.marinas@arm.com" , "dave.hansen@linux.intel.com" , "borntraeger@de.ibm.com" , "penberg@kernel.org" , "linux-mm@kvack.org" , "iamjoonsoo.kim@lge.com" , "will@kernel.org" , "aou@eecs.berkeley.edu" , "kirill@shutemov.name" , "rientjes@google.com" , "rppt@linux.ibm.com" , "paulus@samba.org" , "hca@linux.ibm.com" , "bp@alien8.de" , "pavel@ucw.cz" , "sparclinux@vger.kernel.org" , "akpm@linux-foundation.org" , "luto@kernel.org" , "davem@davemloft.net" , "mpe@ellerman.id.au" , "benh@kernel.crashing.org" , "linuxppc-dev@lists.ozlabs.org" , "rjw@rjwysocki.net" , "tglx@linutronix.de" , "linux-riscv@lists.infradead.org" , "x86@kernel.org" , "linux-pm@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "palmer@dabbelt.com" , "Brown, Len" , "mingo@redhat.com" , "linux-s390@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "paul.walmsley@sifive.com" Subject: Re: [PATCH 2/4] PM: hibernate: improve robustness of mapping pages in the direct map Thread-Topic: [PATCH 2/4] PM: hibernate: improve robustness of mapping pages in the direct map Thread-Index: AQHWqrf6LRJhAvsqzE2DP+hB1ynbOKmpCzYAgACQkACAAKKAgA== Date: Mon, 26 Oct 2020 18:57:32 +0000 Message-ID: References: <20201025101555.3057-1-rppt@kernel.org> <20201025101555.3057-3-rppt@kernel.org> <20201026091554.GB1154158@kernel.org> In-Reply-To: <20201026091554.GB1154158@kernel.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Evolution 3.30.1 (3.30.1-1.fc29) authentication-results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=intel.com; x-originating-ip: [134.134.137.79] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 7ff5ae49-7b36-4024-8d5d-08d879e0fefc x-ms-traffictypediagnostic: SN6PR11MB2670: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:9508; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: gbW+iMo/Bs82ZT7ywfNN/D9qUA2XLqXil+b1CHYx05cm2iGVWywoMc5gq9B3sBg0JvowexS4GirlAOJECkMFYKxdk2b7RGdhJfhC+I7/svp/pGrOsr1UHXmhxCuJP2+Y0i11oA4b2WgrFheOLWdvdqQKNrdo0mFE1MyUv5ms0MfUS7jsycLluESb8IKMKR6PHtS6j2Fy3qvF+lvH3r7bua+1Yw82EmIUimxU5HjzZMGY+Zd/qkUxu3yE4FH6JA6F2W463PzGndBfIbeIEUY6K4Ait98fjJVHMPYiAlopkA1A/nZscj8s3sK1YQbueETL x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SN6PR11MB3184.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(366004)(136003)(346002)(396003)(39860400002)(376002)(86362001)(4001150100001)(6506007)(6486002)(6916009)(26005)(8676002)(6512007)(7406005)(8936002)(2616005)(36756003)(186003)(7416002)(2906002)(91956017)(76116006)(71200400001)(478600001)(5660300002)(66476007)(64756008)(66946007)(66446008)(54906003)(83380400001)(66556008)(316002)(4326008);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata: 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 Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SN6PR11MB3184.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7ff5ae49-7b36-4024-8d5d-08d879e0fefc X-MS-Exchange-CrossTenant-originalarrivaltime: 26 Oct 2020 18:57:32.9485 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: rJEotTFxYRcT5AhVWylIGfgF/JtWN8OP/KguE9Q+/4woG0+Dq3ohn9pjeth1BF3Gf0wEPYPnJ8SFUeYMKgvoj1W2/UA/ZzcQhJ/ZWz7+RnA= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR11MB2670 X-OriginatorOrg: intel.com 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: T24gTW9uLCAyMDIwLTEwLTI2IGF0IDExOjE1ICswMjAwLCBNaWtlIFJhcG9wb3J0IHdyb3RlOg0K PiBPbiBNb24sIE9jdCAyNiwgMjAyMCBhdCAxMjozODozMkFNICswMDAwLCBFZGdlY29tYmUsIFJp Y2sgUCB3cm90ZToNCj4gPiBPbiBTdW4sIDIwMjAtMTAtMjUgYXQgMTI6MTUgKzAyMDAsIE1pa2Ug UmFwb3BvcnQgd3JvdGU6DQo+ID4gPiBGcm9tOiBNaWtlIFJhcG9wb3J0IDxycHB0QGxpbnV4Lmli bS5jb20+DQo+ID4gPiANCj4gPiA+IFdoZW4gREVCVUdfUEFHRUFMTE9DIG9yIEFSQ0hfSEFTX1NF VF9ESVJFQ1RfTUFQIGlzIGVuYWJsZWQgYSBwYWdlDQo+ID4gPiBtYXkNCj4gPiA+IGJlDQo+ID4g PiBub3QgcHJlc2VudCBpbiB0aGUgZGlyZWN0IG1hcCBhbmQgaGFzIHRvIGJlIGV4cGxpY2l0bHkg bWFwcGVkDQo+ID4gPiBiZWZvcmUNCj4gPiA+IGl0DQo+ID4gPiBjb3VsZCBiZSBjb3BpZWQuDQo+ ID4gPiANCj4gPiA+IE9uIGFybTY0IGl0IGlzIHBvc3NpYmxlIHRoYXQgYSBwYWdlIHdvdWxkIGJl IHJlbW92ZWQgZnJvbSB0aGUNCj4gPiA+IGRpcmVjdA0KPiA+ID4gbWFwDQo+ID4gPiB1c2luZyBz ZXRfZGlyZWN0X21hcF9pbnZhbGlkX25vZmx1c2goKSBidXQgX19rZXJuZWxfbWFwX3BhZ2VzKCkN Cj4gPiA+IHdpbGwNCj4gPiA+IHJlZnVzZQ0KPiA+ID4gdG8gbWFwIHRoaXMgcGFnZSBiYWNrIGlm IERFQlVHX1BBR0VBTExPQyBpcyBkaXNhYmxlZC4NCj4gPiANCj4gPiBJdCBsb29rcyB0byBtZSB0 aGF0IGFybTY0IF9fa2VybmVsX21hcF9wYWdlcygpIHdpbGwgc3RpbGwgYXR0ZW1wdA0KPiA+IHRv DQo+ID4gbWFwIGl0IGlmIHJvZGF0YV9mdWxsIGlzIHRydWUsIGhvdyBkb2VzIHRoaXMgaGFwcGVu Pw0KPiANCj4gVW5sZXNzIEkgbWlzcmVhZCB0aGUgY29kZSwgYXJtNjQgcmVxdWlyZXMgYm90aCBy b2RhdGFfZnVsbCBhbmQNCj4gZGVidWdfcGFnZWFsbG9jX2VuYWJsZWQoKSB0byBiZSB0cnVlIGZv ciBfX2tlcm5lbF9tYXBfcGFnZXMoKSB0byBkbw0KPiBhbnl0aGluZy4NCj4gQnV0IHJvZGF0YV9m dWxsIGNvbmRpdGlvbiBhcHBsaWVzIHRvIHNldF9kaXJlY3RfbWFwXypfbm9mbHVzaCgpIGFzDQo+ IHdlbGwsDQo+IHNvIHdpdGggIXJvZGF0YV9mdWxsIHRoZSBsaW5lYXIgbWFwIHdvbid0IGJlIGV2 ZXIgY2hhbmdlZC4NCg0KSG1tLCBsb29rcyB0byBtZSB0aGF0IF9fa2VybmVsX21hcF9wYWdlcygp IHdpbGwgb25seSBza2lwIGl0IGlmIGJvdGgNCmRlYnVnIHBhZ2VhbGxvYyBhbmQgcm9kYXRhX2Z1 bGwgYXJlIGZhbHNlLg0KDQpCdXQgbm93IEknbSB3b25kZXJpbmcgaWYgbWF5YmUgd2UgY291bGQg c2ltcGxpZnkgdGhpbmdzIGJ5IGp1c3QgbW92aW5nDQp0aGUgaGliZXJuYXRlIHVubWFwcGVkIHBh Z2UgbG9naWMgb2ZmIG9mIHRoZSBkaXJlY3QgbWFwLiBPbiB4ODYsDQp0ZXh0X3Bva2UoKSB1c2Vk IHRvIHVzZSB0aGlzIHJlc2VydmVkIGZpeG1hcCBwdGUgdGhpbmcgdGhhdCBpdCBjb3VsZA0KcmVs eSBvbiB0byByZW1hcCBtZW1vcnkgd2l0aC4gSWYgaGliZXJuYXRlIGhhZCBzb21lIHNlcGFyYXRl IHB0ZSBmb3INCnJlbWFwcGluZyBsaWtlIHRoYXQsIHRoZW4gd2UgY291bGQgbm90IGhhdmUgYW55 IGRpcmVjdCBtYXAgcmVzdHJpY3Rpb25zDQpjYXVzZWQgYnkgaXQva2VybmVsX21hcF9wYWdlcygp LCBhbmQgaXQgd291bGRuJ3QgaGF2ZSB0byB3b3JyeSBhYm91dA0KcmVseWluZyBvbiBhbnl0aGlu ZyBlbHNlLg0K