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Wed, 5 May 2021 22:37:54 +0000 Subject: Re: [PATCH v1 05/11] mm/sparse-vmemmap: add a pgmap argument to section activation To: Dan Williams References: <20210325230938.30752-1-joao.m.martins@oracle.com> <20210325230938.30752-6-joao.m.martins@oracle.com> From: Joao Martins Message-ID: <52195943-3344-ec9b-3c7f-1e6d415c390e@oracle.com> Date: Wed, 5 May 2021 23:37:45 +0100 In-Reply-To: Content-Language: en-US X-Originating-IP: [94.61.1.144] X-ClientProxiedBy: PR0P264CA0220.FRAP264.PROD.OUTLOOK.COM (2603:10a6:100:1e::16) To BYAPR10MB3077.namprd10.prod.outlook.com (2603:10b6:a03:8c::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [192.168.1.67] (94.61.1.144) by PR0P264CA0220.FRAP264.PROD.OUTLOOK.COM (2603:10a6:100:1e::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4108.24 via Frontend Transport; Wed, 5 May 2021 22:37:51 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 86288165-3515-4cca-7c97-08d910166c0c X-MS-TrafficTypeDiagnostic: BY5PR10MB4115: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:3631; 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no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; suspicious-header CC: Linux MM , linux-nvdimm , Matthew Wilcox , Jason Gunthorpe , Jane Chu , Muchun Song , Mike Kravetz , Andrew Morton , Oscar Salvador X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On 5/5/21 11:34 PM, Dan Williams wrote: > On Thu, Mar 25, 2021 at 4:10 PM Joao Martins wrote: >> >> @altmap is stored in a dev_pagemap, but it will be repurposed for >> hotplug memory for storing the memmap in the hotplugged memory[*] and >> reusing the altmap infrastructure to that end. This is to say that >> altmap can't be replaced with a @pgmap as it is going to cover more than >> dev_pagemap backend altmaps. > > I was going to say, just pass the pgmap and lookup the altmap from > pgmap, but Oscar added a use case for altmap independent of pgmap. So > you might refresh this commit message to clarify why passing pgmap by > itself is not sufficient. > Isn't that what I am doing above with that exact paragraph? I even reference his series at the end of commit description :) in [*] > Other than that, looks good. > /me nods _______________________________________________ Linux-nvdimm mailing list -- linux-nvdimm@lists.01.org To unsubscribe send an email to linux-nvdimm-leave@lists.01.org