The following commit has been merged into the timers/core branch of tip:
Commit-ID: bfa788dc2ddaea7d7930f63a5c7c8f3668a3f2c5
Gitweb: https://git.kernel.org/tip/bfa788dc2ddaea7d7930f63a5c7c8f3668a3f2c5
Author: Yury Norov [NVIDIA] <yury.norov@gmail.com>
AuthorDate: Sat, 14 Jun 2025 11:50:30 -04:00
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Sat, 14 Jun 2025 20:09:44 +02:00
clocksource: Use cpumask_next_wrap() in clocksource_watchdog()
cpumask_next_wrap() is more verbose and efficient comparing to
cpumask_next() followed by cpumask_first().
Signed-off-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/all/20250614155031.340988-3-yury.norov@gmail.com
---
kernel/time/clocksource.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index a2f2e9f..e400fe1 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -587,9 +587,7 @@ static void clocksource_watchdog(struct timer_list *unused)
* Cycle through CPUs to check if the CPUs stay synchronized
* to each other.
*/
- next_cpu = cpumask_next(raw_smp_processor_id(), cpu_online_mask);
- if (next_cpu >= nr_cpu_ids)
- next_cpu = cpumask_first(cpu_online_mask);
+ next_cpu = cpumask_next_wrap(raw_smp_processor_id(), cpu_online_mask);
/*
* Arm timer if not already pending: could race with concurrent