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Mon, 7 Sep 2026 02:10:36 +0000 Message-ID: <425a1c9f-7051-4baf-a884-65524e8f4fe4@intel.com> Date: Mon, 7 Sep 2026 10:10:26 +0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/5] x86,fs/resctrl: Remove "arch_needs_linear" To: Reinette Chatre CC: , , , , , , , , , , , , , , , References: <62904217290f2cd3225d8608c19e284d6dde3aec.1788452481.git.reinette.chatre@intel.com> <35759986-3bd3-4ada-b2ce-434090cdc1cb@intel.com> Content-Language: en-US From: "Chen, Yu C" In-Reply-To: <35759986-3bd3-4ada-b2ce-434090cdc1cb@intel.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SI3PR01CA0013.apcprd01.prod.exchangelabs.com (2603:1096:4:296::12) To DM4PR11MB6020.namprd11.prod.outlook.com (2603:10b6:8:61::19) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM4PR11MB6020:EE_|PH8PR11MB8061:EE_ X-MS-Office365-Filtering-Correlation-Id: a0c18519-cd42-47a9-dd6e-08df0c853476 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|366016|23010399003|1800799024|6133799003|10067099003|56012099006|4143699003|11063799006|18002099003|22082099003; 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>> >> In the previous patch, a "Non Linear delay-bw map" warning is triggered >> during the actual write operation. Similarly, displaying such a message >> during bootup in this patch might also be helpful. > ok ... but who will the message be helpful to? This is a check of > hardware state, not x86 resctrl driver state as in the previous patch. > This can be used by the admin (not the driver) to query why MBA is not enabled by checking the boot message, IMO. thanks, Chenyu