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Wed, 3 Sep 2025 02:45:51 +0000 Message-ID: Date: Tue, 2 Sep 2025 19:45:48 -0700 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v17 27/33] fs/resctrl: Auto assign counters on mkdir and clean up on group removal To: Babu Moger , , , , , , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , References: <1ee0f8674f0ab48bdbc3e05c11b7df30d6fa53fe.1755224735.git.babu.moger@amd.com> From: Reinette Chatre Content-Language: en-US In-Reply-To: <1ee0f8674f0ab48bdbc3e05c11b7df30d6fa53fe.1755224735.git.babu.moger@amd.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MW4PR04CA0372.namprd04.prod.outlook.com (2603:10b6:303:81::17) To SJ2PR11MB7573.namprd11.prod.outlook.com (2603:10b6:a03:4d2::10) Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ2PR11MB7573:EE_|SA2PR11MB5129:EE_ X-MS-Office365-Filtering-Correlation-Id: 4f58018c-f668-462d-30ea-08ddea93ff10 X-LD-Processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|7416014|366016|7053199007; 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This maintains backward compatibility with original > resctrl support for these two events. > > Unassign and free counters belonging to a monitoring group when the group > is deleted. > > Monitor group creation does not fail if a counter cannot be assigned to one > or both events. There may be limited counters and users have the > flexibility to modify counter assignments at a later time. Log the error > message "Failed to allocate counter for in domain " in > /sys/fs/resctrl/info/last_cmd_status when a new monitoring group is created > but counter assignment failed. > > Signed-off-by: Babu Moger > --- Reviewed-by: Reinette Chatre Reinette