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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MSGID_FROM_MTA_HEADER,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 79A5FC10F27 for ; Tue, 10 Mar 2020 18:57:10 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 252DC208C3 for ; Tue, 10 Mar 2020 18:57:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="KVBNO5WW"; dkim=pass (1024-bit key) header.d=fb.onmicrosoft.com header.i=@fb.onmicrosoft.com header.b="VSMYNsVp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 252DC208C3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=fb.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C025B6B0006; Tue, 10 Mar 2020 14:57:09 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BB1516B0007; Tue, 10 Mar 2020 14:57:09 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id A79D96B0008; Tue, 10 Mar 2020 14:57:09 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0103.hostedemail.com [216.40.44.103]) by kanga.kvack.org (Postfix) with ESMTP id 8CF3B6B0006 for ; Tue, 10 Mar 2020 14:57:09 -0400 (EDT) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 037A5814B for ; Tue, 10 Mar 2020 18:57:09 +0000 (UTC) X-FDA: 76580360178.08.blood87_5b6dffedfb353 X-HE-Tag: blood87_5b6dffedfb353 X-Filterd-Recvd-Size: 8420 Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by imf20.hostedemail.com (Postfix) with ESMTP for ; Tue, 10 Mar 2020 18:57:08 +0000 (UTC) Received: from pps.filterd (m0001303.ppops.net [127.0.0.1]) by m0001303.ppops.net (8.16.0.42/8.16.0.42) with SMTP id 02AIt1MR013754; Tue, 10 Mar 2020 11:57:03 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=date : from : to : cc : subject : message-id : references : content-type : in-reply-to : mime-version; s=facebook; bh=KuNVEVHTR4A3WgLSASOCwFqCg5pWdMgDYeQ10bZV6mI=; b=KVBNO5WWGqXfEWEo4bh3DlifBFfmUbUvLWE1MEAKgbpbj4G4E5y68l3wDh+BjoG9x0KC smqdi8b9sZXuFLFkSv9PxYjlIY9NNAYXvqWgCcYg/H4xNJlInWneobkFTGfO39KmpIpH /5F4rI6ToXGWuUkd76Q7TRm6+F2KgExWXNc= Received: from maileast.thefacebook.com ([163.114.130.16]) by m0001303.ppops.net with ESMTP id 2yme3vp3vj-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Tue, 10 Mar 2020 11:57:03 -0700 Received: from NAM11-BN8-obe.outbound.protection.outlook.com (100.104.31.183) by o365-in.thefacebook.com (100.104.35.172) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1847.3; Tue, 10 Mar 2020 11:57:02 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=oPzfTqcmayBjEMdI1ac3/nvsWmBC3pXapxGQ1yjLXhriFOdx19NoedVTyvBHEpFm4ADYNObKdvMMpdmpnZ5ojVc/TKA1lN+m83Uu4l+ISWXCedXDFmytf3qxzu5KwoJU5UYECe/56MT/h9zZ64WyH+VUnKSAwXH5sVWBIQtCVekq6GAvxL/GF9klK8IEZ34pcw5lhZBrS4sIwGBElQhc++RO8agB8rkQMoIp0xArrsDC6/ksiZFi4OQJwmmwcHR23e0uejywuP4JWL6sW/UTl+mYxu5C4jLc8LxzHtFVLt6kT2CktzlwhEKpo1DNo5YqJPLCXM5pVHGvfUprUZN/pQ== 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=KuNVEVHTR4A3WgLSASOCwFqCg5pWdMgDYeQ10bZV6mI=; b=BCMxa31g+k6gr0zHU044O9Z6C74dBsq+JW4bUdEquD93VEwk15DSKA/w2TS+iWRgO2SYHAXRE3AXeS/DE9hn1N0wsDScByoH1kak7Q4QisSzYDnpMYtWMaSv2tgTv3aXuyZRuEEMAPO+ML39AR7E8SpPBbBT1aPR1TfzHW8VgM2OBzzpDMtHS3uiiJdhOYuIsuXds4+Ll2CfSQP2RR7tTv67y4MxkntrYSqfXmeSUD3CU49ODg+aXlLlaUibHpgVPxJy3vmOxLrvdrtW1exsXPoT76yAZLSXwdmCMfAQKvW/dyu2/6f7wvg418q8iY4qijSdQ5issIbi2+aV1Udo8w== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=fb.com; dmarc=pass action=none header.from=fb.com; dkim=pass header.d=fb.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.onmicrosoft.com; s=selector2-fb-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=KuNVEVHTR4A3WgLSASOCwFqCg5pWdMgDYeQ10bZV6mI=; b=VSMYNsVpy++V4F7saxHGroyHgB8M59e8Cl8tntG6GTKDEB1dqVdG6QJURU0P2yAGD4ztNdvtIzXDEdMQxiZR4yliQIqfUhw0vFop5oogbGfINY543tYOO3fmChOrE/nYICAxlgJ9mIH9AKwnLZOXpeHeQB9vVtbS0zI8zB9jiyE= Received: from MWHPR15MB1661.namprd15.prod.outlook.com (2603:10b6:300:124::23) by MWHPR15MB1791.namprd15.prod.outlook.com (2603:10b6:301:4e::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2793.15; Tue, 10 Mar 2020 18:56:56 +0000 Received: from MWHPR15MB1661.namprd15.prod.outlook.com ([fe80::f930:6bf2:6d2:93ef]) by MWHPR15MB1661.namprd15.prod.outlook.com ([fe80::f930:6bf2:6d2:93ef%8]) with mapi id 15.20.2793.013; Tue, 10 Mar 2020 18:56:56 +0000 Date: Tue, 10 Mar 2020 11:56:52 -0700 From: Roman Gushchin To: Andreas Schaufler CC: Mike Kravetz , Andrew Morton , Johannes Weiner , Michal Hocko , , , , Rik van Riel Subject: Re: [PATCH v2] mm: hugetlb: optionally allocate gigantic hugepages using cma Message-ID: <20200310185652.GE85000@carbon.dhcp.thefacebook.com> References: <20200310002524.2291595-1-guro@fb.com> <5cfa9031-fc15-2bcc-adb9-9779285ef0f7@oracle.com> <20200310180558.GD85000@carbon.dhcp.thefacebook.com> <4b78a8a9-7b5a-eb62-acaa-2677e615bea1@oracle.com> <1b5ada08-1baf-4f2d-3ecd-b940e7ee0e0d@gmx.de> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1b5ada08-1baf-4f2d-3ecd-b940e7ee0e0d@gmx.de> X-ClientProxiedBy: MWHPR17CA0054.namprd17.prod.outlook.com (2603:10b6:300:93::16) To MWHPR15MB1661.namprd15.prod.outlook.com (2603:10b6:300:124::23) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from carbon.dhcp.thefacebook.com (2620:10d:c090:400::5:5285) by MWHPR17CA0054.namprd17.prod.outlook.com (2603:10b6:300:93::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2793.11 via Frontend Transport; Tue, 10 Mar 2020 18:56:55 +0000 X-Originating-IP: [2620:10d:c090:400::5:5285] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 4adc3047-3381-4483-2b17-08d7c524cdb9 X-MS-TrafficTypeDiagnostic: MWHPR15MB1791: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-FB-Source: Internal X-MS-Oob-TLC-OOBClassifiers: OLM:9508; X-Forefront-PRVS: 033857D0BD X-Forefront-Antispam-Report: SFV:NSPM;SFS:(10019020)(376002)(366004)(136003)(396003)(39860400002)(346002)(189003)(199004)(16526019)(66946007)(66556008)(6916009)(5660300002)(66476007)(9686003)(55016002)(478600001)(186003)(1076003)(316002)(54906003)(6666004)(81156014)(81166006)(86362001)(6506007)(8936002)(33656002)(7696005)(52116002)(2906002)(4744005)(4326008)(8676002);DIR:OUT;SFP:1102;SCL:1;SRVR:MWHPR15MB1791;H:MWHPR15MB1661.namprd15.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; Received-SPF: None (protection.outlook.com: fb.com does not designate permitted sender hosts) X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: sy/mN/F6ElzquYampSIh0R5ouUkXo0WqQ77C/pXDOWY6FNYD13qGWBAcDYx4ZqK/iNaXTSCjYf8Yvw1VsDGHKazhA3o6PNsKKk+Jz5G0oa0ZkSvAzfMywlmd9QJ0m44oSJPvoVc+y3WAsefbpNSdodzjSfNMHLmSasRstt/wclFkuDEunZpgmwefD+Bmzp6kp2z8yMUbYYO86AedCFu4Ep2BSqx/cq4Ha0oWnaM6sNawD1p+fOt9dgkGbClBJe9SSTawE8JBONSjLpNWehNcAaCZQjOe1zACWBElWglFCQIC9a49lAjvXt2eAV/DBBfetvnAXms+nBpxLUs4fd5HfWKBltHwgOXZ814IkmWtCe/ONyDWOVx4ZaTwKUyjDcLlrJ7kHsjwr/QTOhSsZI6VUPbovprWVxdmsPdquYSy9ukzfRldP7INLqXYrySQMz9d X-MS-Exchange-AntiSpam-MessageData: E2TVaEROfg/pEXEhRrHZKbOz+iCy/ejErp+NEfu9a4UAsnARJxRPx46c53z+Ibc363IStbL0mApFK0JjoTzr0OwceQwpa55meKz5kTIP6z7Rdb6RgsXVLaY/gtDpGGSrnvxQP88iXWMgzK+1M6RpIy/3R+evF5mEr7Dvh+0J28vGhCcnew50MSdFhk0or+4t X-MS-Exchange-CrossTenant-Network-Message-Id: 4adc3047-3381-4483-2b17-08d7c524cdb9 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Mar 2020 18:56:55.9832 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 8ae927fe-1255-47a7-a2af-5f3a069daaa2 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: N1PcyMV0YiZlrTW43AKrdSv/UHx+8psgmDVyg+AgYiUw1qwS7TTu7xhwfOEu/nMp X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR15MB1791 X-OriginatorOrg: fb.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-03-10_13:2020-03-10,2020-03-10 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 bulkscore=0 malwarescore=0 impostorscore=0 phishscore=0 mlxlogscore=881 suspectscore=1 priorityscore=1501 mlxscore=0 adultscore=0 spamscore=0 lowpriorityscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003100111 X-FB-Internal: deliver 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: On Tue, Mar 10, 2020 at 07:54:58PM +0100, Andreas Schaufler wrote: > Hi all, > > sorry for bumping into this discussion, but this is exactly the feature > I am currently looking for on ARM64. You may browse under > linux-arm-msm@vger.kernel.org for a message I posted there recently. > > I read somewhere in this thread that it should be easily portable to > other architectures than x86. I am ready to give it a try, but I would > need a few pointers where to hook in in the ARM64 code. I'll try to add arm support in the next version and will really appreciate if you'll be able to test it. Thanks!