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McKenney" , Boqun Feng , Jonathan Corbet , Prakash Sangappa , Madadi Vineeth Reddy , Steven Rostedt , Sebastian Andrzej Siewior , Arnd Bergmann , References: <20250908225709.144709889@linutronix.de> <20250908225753.077967162@linutronix.de> Content-Language: en-US From: K Prateek Nayak In-Reply-To: <20250908225753.077967162@linutronix.de> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Received-SPF: None (SATLEXMB04.amd.com: kprateek.nayak@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN3PEPF0000B06E:EE_|SJ1PR12MB6196:EE_ X-MS-Office365-Filtering-Correlation-Id: cc1c4b16-f63c-4f65-f091-08ddf05c0661 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|1800799024|7416014|36860700013|376014; X-Microsoft-Antispam-Message-Info: =?utf-8?B?WFY3dWxjbUhMNUJGVDU1U0o2UHVYVnYyRjBSU2IzRzJ4UjMzQlRHanRPbFNM?= =?utf-8?B?Tisxdkp2a1QrTEtSaEJRdDNZSmJiQXBaZXEwaDBtRVN0cDhiK1hkcndFRHlG?= =?utf-8?B?eFlEbkpKRkhiVUJocWxsY0lVaDBuS29vZ2tKTVozSlk3WjN6cVpteVNINVZ0?= =?utf-8?B?cjVpV3B1RnlPcXdSMHEwWTNtNnNZZFlZYkUyOURqQzhJY0QxSkRpamxXMUxL?= =?utf-8?B?TEZKK29QeHg4c2hlVWN4Z1NDcUgzUW9Wb3k4YkZxQUwwNTFrbFhNVEd3S1JC?= =?utf-8?B?cGdPamVRbThidFAwM01MWGZUcnBDcW5OTCs4TlJYdmNSSU1TS3pKcU4xNkxt?= =?utf-8?B?cEtHL2NPQnVYaEQrTDFWR3hnUVRTdjMraTc0K3VkbUhvemk2aXFFY241bXhr?= =?utf-8?B?NXdzL1dvRUZadjdWejdmaSthclFHdXNLbExhdHVIUlYvVXRIUytYcExKWC9E?= =?utf-8?B?VHV6Z1hLVXQ3YXJBM3R1MWpHd0hMRStsVUE5VGR2aFdEWldnRHl5TnNRSDc5?= =?utf-8?B?aXdRdmNoWGhyekI0Yk15ZmxYcWRVUHNxaXQxcXNFQkt0bS9RanYxWUIxeWp4?= =?utf-8?B?djZFbFJJNC8wc1JqMXJnS1VMK0FXMTV6L0tNNlJzSStjYmQ1K2NLTG5TTzVC?= =?utf-8?B?eWhrR2FHb0VNVGttWFBtRWNoRWluMlNNdEE3RENhbTEzQnliblR6Lyt6SFJF?= =?utf-8?B?azdQdnQ3NVU4U0xCeDJUbjdpaDhLWDU4YXM1MWdYV0puSEJ4OHNtcXlka0RI?= =?utf-8?B?Rm1hSnVOeWtUdTdOVzJhVVdVL3JGYUpxb29JZmM1UnI1aVkzYlBEZlRBbW1k?= =?utf-8?B?bWppRkxTTllqZGJzTXM0WGV0cTFZMWtmT2VuTVlnUmljR0pJNWEzTDhSYnVl?= =?utf-8?B?a1BhY2lrNlN5eVVlZmZTd25NdSszUW0vai9qbkJGTXNoNjV4a29uQmZlWDhM?= =?utf-8?B?cjJJZzdyVmdKaFEvQTk5cFVvUVd3aXBWa014czlQWXpVTmdpcVQxc0ptOTkv?= =?utf-8?B?TlpRMWtLcFRXaDFyemtncm5CQUVXOVpkWW13RC91ZEhzbjBCaVpNUXBCWUc5?= =?utf-8?B?YS9sU3NrNUhJSG5XN0V3UWlETXhScFZwQmRtd01md1VXTUxvRXViTUJzVG11?= =?utf-8?B?UVM5NGo3aDc3S0JHSi9keHIzelV6d0dRRlM2QzFsby9peU5MMDZnYUZBMFln?= =?utf-8?B?cTJQS3VZcSs1WmFab0UvOCt4ZGsrYXliTDBPc1ZDQjlRUmNYUnFRcEtFMWR2?= =?utf-8?B?ZGU5UnZwU0NMUGZ4WnRENEYxU3Y4UnJXVktsTmJCMG55eXZPK0VmVllWQWZF?= =?utf-8?B?RzEwOUFDSE1zdFFCc2E5Y3M3bmtXeGliQUw5NVJnMGt4KzFOM0xQVDdRekx1?= =?utf-8?B?NXNnVHh6VEtkV3F5cTk2QUpnL1lPZ1Z0NUk5MFVQM2RqNWEzdEZDblRhUS8w?= =?utf-8?B?akJCTlJTOEM3dCtPa2pDTExUN1VhZFExaTZPM2szL20wbkcyRTlUNmpnOHhC?= =?utf-8?B?ZHlucHlsdEwvVTNsVHNNL2ltMzdJbDBEZnk2ZWdBSkNUdXJ0dFdsQkUxN2Zx?= =?utf-8?B?NEVtNVRETDMxUmpKbFEranZ1eGNlZGYwRlhSenNwbGx2aVFHckM0dTE3OWZG?= =?utf-8?B?Q21sa3ZuSW10dittNWhJYys4bm5YcHZXMHlVVVZqenJXU0g1ekpFZVE5ekU2?= =?utf-8?B?b24wRnk1YmVETFloMTNZa3MzbzlQNURVVGFDbnh0QU1PQUpRYTFVaTFNaVBR?= =?utf-8?B?a2grVGM5TkVNVjA2cjdKYXVsbWNVSU1RU3RTNytXc2RLVVBoYXBoZWo5dS9v?= =?utf-8?B?WnFyY1E0WmNYWnpLblEzcE1pclViWWQxNnd6V3BKZTNxYjRyRUlWWlBkblA3?= =?utf-8?B?cGs0bFVkdWdnaU5ISnpoZUp1RVlIVVhURU15K3FoWklpTWRhSUhncVEydVVw?= =?utf-8?B?Nll5aG9lV3dpTExzMjYyelJpZS9rUHZzUXBTUmxNZm9BYWRHME9GMHRqSzNK?= =?utf-8?B?cnVkN0lCMjcxWDk5WmJPU1ZvR1FVNzVEMFZBeU5LSXNHS3hYSjZlYVN6MURr?= =?utf-8?Q?AS0yVg?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(82310400026)(1800799024)(7416014)(36860700013)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Sep 2025 11:20:19.0797 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: cc1c4b16-f63c-4f65-f091-08ddf05c0661 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B06E.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ1PR12MB6196 Hello Thomas, On 9/9/2025 4:30 AM, Thomas Gleixner wrote: > The timer is armed when an extenstion was granted right before actually nit. s/extenstion/extension/ > returning to user mode in rseq_exit_to_user_mode_restart(). [..snip..] > +static void rseq_cancel_slice_extension_timer(void) > +{ > + struct slice_timer *st = this_cpu_ptr(&slice_timer); > + > + /* > + * st->cookie can be safely read as preemption is disabled and the > + * timer is CPU local. The active check can obviously race with the > + * hrtimer interrupt, but that's better than disabling interrupts > + * unconditionaly right away. nit. s/unconditionaly/unconditionally/ -- Thanks and Regards, Prateek