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Mon, 12 Jan 2026 21:24:50 +0000 From: Date: Mon, 12 Jan 2026 13:24:49 -0800 To: Yury Norov , Gregory Price CC: Balbir Singh , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Message-ID: <696566a1e228d_2071810076@dwillia2-mobl4.notmuch> In-Reply-To: References: <20260108203755.1163107-1-gourry@gourry.net> <6604d787-1744-4acf-80c0-e428fee1677e@nvidia.com> Subject: Re: [RFC PATCH v3 0/8] mm,numa: N_PRIVATE node isolation for device-managed memory Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SJ0PR03CA0382.namprd03.prod.outlook.com (2603:10b6:a03:3a1::27) To PH8PR11MB8107.namprd11.prod.outlook.com (2603:10b6:510:256::6) Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH8PR11MB8107:EE_|PH3PPF4324011F4:EE_ X-MS-Office365-Filtering-Correlation-Id: 5c77a6b2-a64c-4fbb-3b6b-08de522104d9 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|7416014|376014|1800799024; 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To me (OK, an almost random reader in this discussion), > N_PRIVATE is a pretty confusing name. It doesn't answer the question: > private what? N_PRIVATE_MEMORY is better in that department, isn't? > > But taking into account isolcpus, maybe N_ISOLMEM? > > > - we could call it N_BOBERT until we find consensus. > > Please give it the right name well describing the scope and purpose of > the new restriction policy before moving forward. ...this is the definition of a bikeshed discussion, and bikeshed's are important for building consensus. The argument for N_PRIVATE is with respect to looking at this from the perspective of the other node_states that do not have the _MEMORY designation particularly _ONLINE and the fact that the other _MEMORY states implied zone implications whereas N_PRIVATE can span zones. I agree with Gregory the name does not matter as much as the documentation explaining what the name means. I am ok if others do not sign onto the rationale for why not include _MEMORY, but lets capture something that tries to clarify that this is a unique node state that can have "all of the above" memory types relative to the existing _MEMORY states.