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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 57105C636D3 for ; Mon, 6 Feb 2023 19:25:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id EB7636B0072; Mon, 6 Feb 2023 14:25:26 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id E66716B0073; Mon, 6 Feb 2023 14:25:26 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CE0C86B0074; Mon, 6 Feb 2023 14:25:26 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id C04946B0072 for ; Mon, 6 Feb 2023 14:25:26 -0500 (EST) Received: from smtpin12.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 8FD5F160207 for ; Mon, 6 Feb 2023 19:25:26 +0000 (UTC) X-FDA: 80437845852.12.2AB66CD Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by imf01.hostedemail.com (Postfix) with ESMTP id 0E5094001C for ; Mon, 6 Feb 2023 19:25:22 +0000 (UTC) Authentication-Results: imf01.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=U5BX8HTq; spf=pass (imf01.hostedemail.com: domain of ira.weiny@intel.com designates 134.134.136.126 as permitted sender) smtp.mailfrom=ira.weiny@intel.com; arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}"); dmarc=pass (policy=none) header.from=intel.com ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1675711523; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=Za/JtZkbEPL8ZVROqvUmqbOV+nIB4bfZPRat2o8SDIg=; b=l1WqIoU/EmKktQ4QUl43pUkDG9VgXRCpRprC64jUFRwcHpy4T7Db92clw9vJOainAXHRWA Luyy2kT17An7xs7YwpECHnUtq30fzH79fdg21+Hd28XcYhgbrrPGlTAVxczWg6fGP5BLUO hMU0Z5FTEOALp67QeBtSTm5TNLsvFGw= ARC-Authentication-Results: i=2; imf01.hostedemail.com; dkim=pass header.d=intel.com header.s=Intel header.b=U5BX8HTq; spf=pass (imf01.hostedemail.com: domain of ira.weiny@intel.com designates 134.134.136.126 as permitted sender) smtp.mailfrom=ira.weiny@intel.com; arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}"); dmarc=pass (policy=none) header.from=intel.com ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1675711523; a=rsa-sha256; cv=fail; b=qNUe3ckBHJMmrNJA/zjDsa/mv8RgtUjdxi6UZbC7YfvBUVsi0YFX6CbQSOP8jAzXszVoVv xZaWA/fOlvaWhreBuBdBPomZOm1R5+YVSSZ35714Xalmon00WitvkBACC+xnInhnQisA62 lTjHG8IYyGnDjNTviVtVHKDNL/+EaaQ= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1675711523; x=1707247523; h=date:from:to:cc:subject:message-id:references: in-reply-to:mime-version; bh=gYuesCMPotltzNQ/M53YYWH5JAa++gGb79KbX36kk2I=; b=U5BX8HTqp2tHLWRbcsoyDwvjdMciyNeNc6EHilprvHqVjY8VondKRD8b qfRf7UJurmDa9JGKlMf3N/tbQD/iiAlmebTtJZAvNxlKmOMMocXiEHkxc ZK9JZFXtXz2SvHaewqslqNpzFJ1sr/9O9sG6h1qDmCQZSMgERLFMscby7 FU5uGdB/4QASFq3Mi4DArd12IlhWRQ0kxPdxHAm8FFyHMgcal1ULC66lz dXt5bQxUpSl5CkZZZxKrwcyjznx+/Vekj2yPI3lDZCoMoT6cwEk75B0gO 0C6c+de6IiXp1GoKYR0x0X2Hf5wt/O2Ia2fk4YfatZRAPAHbgKYKy3vEz Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10613"; a="312949589" X-IronPort-AV: E=Sophos;i="5.97,276,1669104000"; d="scan'208";a="312949589" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Feb 2023 11:25:21 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10613"; a="659938898" X-IronPort-AV: E=Sophos;i="5.97,276,1669104000"; d="scan'208";a="659938898" Received: from orsmsx601.amr.corp.intel.com ([10.22.229.14]) by orsmga007.jf.intel.com with ESMTP; 06 Feb 2023 11:25:21 -0800 Received: from orsmsx610.amr.corp.intel.com (10.22.229.23) 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 15.1.2507.16; Mon, 6 Feb 2023 11:25:21 -0800 Received: from orsmsx610.amr.corp.intel.com (10.22.229.23) by ORSMSX610.amr.corp.intel.com (10.22.229.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.16; Mon, 6 Feb 2023 11:25:20 -0800 Received: from ORSEDG601.ED.cps.intel.com (10.7.248.6) by orsmsx610.amr.corp.intel.com (10.22.229.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.16 via Frontend Transport; Mon, 6 Feb 2023 11:25:20 -0800 Received: from NAM12-MW2-obe.outbound.protection.outlook.com (104.47.66.46) 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 15.1.2507.16; Mon, 6 Feb 2023 11:25:20 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ESUjJy2qmZadR1m+dI8UVLRJzZg1nHfvchtHyDFRsFsFMRv4Pae9PBWTCP+wAV53GobP8CEMWrR8zZdFHHnPOreoBAjnJ6UYWwavrgbaq/bGCyocYR/DmmVDX7XDwutSl7jPLgoABY8skqiYeEvL6WgkvFjXlJubNEYEk92B2SUhM3MCuh+Zlf7YnsAPMIdqpbkiT3jGAXnI2ax4VJbF9PXlmZD9EKYxS0XrhukIZqyQu96U59DjDCv4dpPxCgNKvAz+QvVa16rG1Fein4OH//bDynXLvAbxBvk1+jthj3h0zr2xCcmnVoEADKkaCDJXsMmAxnw66oX5t2RaQgy+kQ== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=Za/JtZkbEPL8ZVROqvUmqbOV+nIB4bfZPRat2o8SDIg=; b=DTzuK33H4+FyDfpAh9HBxP4mJWZYgdnPFirCid9xft4oA8/27ZfIKkw7FmD+yXCgWMdiQTAPL/7VPx3HFpEWO7tSKQUxj6xz2NtEJ85iP6DtEJpTBBF6UarFHsEB06hCxRlf4MLuIhJMPvDu1Tudav8TOzKsDtnMTb7JRJRqF0IRwwldt4AzAY9eouy8S5XsMzEpy0ghH9fu0OHkfEwQgputkSu7fvBy1UlB4o66psT4fkuuzmPw9yVfToPtYgN+r+hH1VYm4TKH9OfVs+64Q1Jn/zd4xr0VjcDZAMjyP51oadazzVYHQeuU99v7uJdD/cj2nTE224Oy5Pjn/B7Tpw== 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 Received: from SA1PR11MB6733.namprd11.prod.outlook.com (2603:10b6:806:25c::17) by CO1PR11MB4836.namprd11.prod.outlook.com (2603:10b6:303:9d::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6064.32; Mon, 6 Feb 2023 19:25:18 +0000 Received: from SA1PR11MB6733.namprd11.prod.outlook.com ([fe80::6851:3db2:1166:dda6]) by SA1PR11MB6733.namprd11.prod.outlook.com ([fe80::6851:3db2:1166:dda6%9]) with mapi id 15.20.6064.034; Mon, 6 Feb 2023 19:25:18 +0000 Date: Mon, 6 Feb 2023 11:25:15 -0800 From: Ira Weiny To: Dan Williams , CC: , , Subject: Re: [PATCH 05/18] cxl/region: Add volatile region creation support Message-ID: <63e1541bc45b1_fd49e29414@iweiny-mobl.notmuch> References: <167564534874.847146.5222419648551436750.stgit@dwillia2-xfh.jf.intel.com> <167564537678.847146.4066579806086171091.stgit@dwillia2-xfh.jf.intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <167564537678.847146.4066579806086171091.stgit@dwillia2-xfh.jf.intel.com> X-ClientProxiedBy: BY5PR03CA0002.namprd03.prod.outlook.com (2603:10b6:a03:1e0::12) To SA1PR11MB6733.namprd11.prod.outlook.com (2603:10b6:806:25c::17) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA1PR11MB6733:EE_|CO1PR11MB4836:EE_ X-MS-Office365-Filtering-Correlation-Id: 06ed585d-b9bf-4da1-369f-08db0877e16a X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SA1PR11MB6733.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230025)(39860400002)(346002)(376002)(136003)(396003)(366004)(451199018)(44832011)(2906002)(6666004)(4744005)(5660300002)(38100700002)(6506007)(478600001)(82960400001)(26005)(8936002)(6486002)(186003)(6512007)(41300700001)(9686003)(4326008)(316002)(8676002)(66476007)(86362001)(66556008)(66946007);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?iBBSQRH5TNswPOp74MQdw/XCdcDdWxaLSsVJL9CftB/INUDH7OH7ME98Nome?= =?us-ascii?Q?3GM65R4zEIqprqLXcdWEkvJcNjMVeYxW+zooEmx7bRhciezgOvI0S08CTdWB?= =?us-ascii?Q?BVzUkvM7HC/Kx/AAIQ3ROGMN1JRQA+ifFcgcrKKvk1QZVbi+6ZJs2xkdXwcP?= =?us-ascii?Q?i/gQpmWe3njQPuw+mGOxASxNsM1EQ4SRQdjFPWLbhYTnVCCseCd1LUHYlQsu?= =?us-ascii?Q?A9aoxJjZ+7RArVzqhZp1P8/rSIv1VvIB/jm6G6fAtesJdo7SaaWvafKwUR1i?= =?us-ascii?Q?WP2/e2X7bLBVWcxdzir6Z1CIlto/7KtrJj2Wou0mO3cbBFHLBzc2vZLizMj4?= =?us-ascii?Q?IsT+ESXVrBZj9E+PA47JZlSApkmd3Wx71dps38yvBxWjWXKsF7LT7t2peMC8?= =?us-ascii?Q?lOeYtEAhBdXv1/g0H/pgDp4+d/jpUjhX5JIY7m4n36B9MRsghsauHOvX8Sl+?= =?us-ascii?Q?KMPi4R/eCisKoCr1i/aJcYdA86E3dJwWxqsm5zSvT6DnTGBRbjqNASqF7gUS?= =?us-ascii?Q?n+hb+uM5o9L3oi/qR3xARyBTv1Y3WP/Szori6JQwdyek8E112goYuj7GBv3w?= =?us-ascii?Q?6HRV12+PlYCmzvRKVKDkdhGWo7A3aP8pwbhjGtQSq4vezut5febvLI6EHRDt?= =?us-ascii?Q?301n9/4axMtnDsrwTpELvT8ZFvGDTvWfDJLBb1CxFzPL/SzCM4radYYOQQLU?= =?us-ascii?Q?qpwDrl3DARjorjlSG0HFVX+pqEjmI/lc+X+G5mp5vXEqUos7GG0GgCieH/n6?= =?us-ascii?Q?k4UBOymCHHBuxy5GXb8UQA2WsbMkNVogJaSM18sQhRmlzF7h3A3kgByc/+Lm?= =?us-ascii?Q?vn5f8imbDprQvD+A94g9sp8+3zX7Xe12LO0EYYjtZcwHM244mgeDDtJRWjiV?= =?us-ascii?Q?vu/oc57Fp+cI+AUtfg5iRgkhd5XuYMuGQsHiH2ygUsAAdikk9jAoEaRDY6u/?= =?us-ascii?Q?K+5rnvSFmz8Uxc1uS9ytnMTD2P0YBQLKryfqo4yT6JK9w/Ibow5CR6c2qNCh?= =?us-ascii?Q?UxaqKMCfD11Ct+FvkJ6JOfOc8W3NT8JYnbNYZ1km6MH/o5OeYvdDC2kgM74H?= =?us-ascii?Q?YdbVnh+rQQGD1lZIH5s2G+awyovkxGZMQh6qM1kSWwNDs1fxJ+y9xkxbQFg4?= =?us-ascii?Q?NnY4iL4dT3P/gM93sDN4yD1npsvSzR4gKCtI8bnQcri80lAeIoYDPYHGo6Mf?= =?us-ascii?Q?WamRy99TbtY2mrkIGCPiusMUrFrNxieXEVD87RlWkfwhE5cqHtHruhoDYNR7?= =?us-ascii?Q?Zneo5951cuFRcwaa3gsqfClenRKLUWxDLHOeCiJswZUtwza7rcapF5/PRydL?= =?us-ascii?Q?xNHHZ/txT9nhl+86ZXienLf5oJWEaBxCBEfeXrFxjXa6vniycNFoxmrkan/0?= =?us-ascii?Q?qW1Bkuzf2qqdB+RgMy78MThCa0aCmdYmHsTgnmcWTVivT6M1C4EU/fu9umZ9?= =?us-ascii?Q?s7HSNplWHfAZI1VgDkXjBF5dXZoy1OE3zHluRJIpccZaCBcyLtJ10bufSCCV?= =?us-ascii?Q?RhWwcp4NTduIDPbeLnZiLGm1ivBYlzrDnfpb9q/icnWS01WBPtTWcDGYV8Pc?= =?us-ascii?Q?AP6IoyIHZ60KQnfdJ6vZbcdzV1KAdvQo7C5Igrp6?= X-MS-Exchange-CrossTenant-Network-Message-Id: 06ed585d-b9bf-4da1-369f-08db0877e16a X-MS-Exchange-CrossTenant-AuthSource: SA1PR11MB6733.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Feb 2023 19:25:18.1379 (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: HRR/WZhTr4kSqxkMRsyF2rDkatZowWR2HLNmSFl+FKwV8tM2CG2phGbWjqwYA9lsTMV8mheFZ+5mHPBFf79HGQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR11MB4836 X-OriginatorOrg: intel.com X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 0E5094001C X-Stat-Signature: idsm7ikesdb6hjr4a5xz9jeaou1g6m1i X-HE-Tag: 1675711522-594061 X-HE-Meta: U2FsdGVkX1+lMGBbTpbdwMPeKzb2pGYQ9OUWqwEzmgnkRGr8tCoXjluMYY7F0SsHZmoXnjVwJZDVj9TaitqvZX/ORV1PrTIJuHJLV+/oxshUg+HmPTAALraxcdY6eQOinFAlzJ8QBaEub8AqKloLmy9nNsq3JbLfrMJA+cmhw2BgRkfDny2UkFiokTBwlbp9l06uWWkLV9fmXsGYddEENhPF3xUKMUM0d8fwR8j4OpTbaPmWwLKOejoOU6PU3JL+QK7oYjGcVCeXF+NaUJe0Mw3AZzZDz/jFwYPRMFpRxNTT//sYfidgQ4kQjFtjOk9u9zvMaFy8AIR+ic6QmGtH13zAooKqKge/w8jF0DDP2uYvWE6s32u9bfP7nQJjNxwSMDFGWPgawGGjQfkzo5WYGww1MRUhpLVZCBny0nnEnYZsY0KReqdfqartXBJ9xuMhJcWfg0W3jtrvztU6cvd0r8sykN/gNT53lcqXmhB6QE7h8r1Na6rnLh0TT8+2RuGEWGG6JD/mE/WGtchD9YxdLRWSQt78a4XZB9KsUBT1hrU7TV7wspleZeFX8HDQqIDQoS0nJ5jM/JeUPtmSp6HhO58BxLr7W6lQtNxSybVzVsbOYEiX+Kg6k22Vl0oQbhsFQGPCsoyighQJZj7ypwbE+6YnE1bQm7GmMh/xEzPD9zSQAzoIljtqh9I8Xr2j2mqjkBfmt8dnWHNf23Sokvlwdz3re9h9matyR1BwN7+ByTKoQU2q8y/uCi9mUxkZxOqoPILBTCU5EMVOS1XT+L1LeFu7pYJH5CyEAnuZlR3sQDujjNldZBaUy0hcMr99RMy8rF0/pMp0yT7v2UdRBVIhz/pY/bR0PT+nBQnNBlwzrLuyGE9Upkypcd2pUxB5jG4LsUOhShWT4a5kywRuTDYYao7tbgC47pdx6mcSZ7oLaHmjZM8lFJQ0yOfWkSPOsy6KOzsxhe2YKlHbH4K46f8 J9rWOYCB XhYHhzFP3G0zH5Q9XplOPXOVbPqZhth2qvVkjsSwISInQUVCYQ6get98+J7Yk9Lk7F6GRUvHZSOvTh65F+l95TOYifnEyaV1lcCwnyIpJ7gBTbHSZOpIohGTkCDonfSQ3I7uTwe0Vco76USi+OdiT1+ZqdydUe/eewYRTV5UhPgWpiUGZwZqT5/NHV2omEPilsRRiUziW4s9ZWPz1IyeEHJpWSOxEyMHzcqN6f466lmtheyF0Y2sTpEueLS7IimCK40lsITQpEzvmYORL3/DpVfcjXA== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000003, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Dan Williams wrote: > Expand the region creation infrastructure to enable 'ram' > (volatile-memory) regions. The internals of create_pmem_region_store() > and create_pmem_region_show() are factored out into helpers > __create_region() and __create_region_show() for the 'ram' case to > reuse. > > Signed-off-by: Dan Williams Reviewed-by: Ira Weiny