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authorFrederic Weisbecker <frederic@kernel.org>2024-02-25 23:55:00 +0100
committerThomas Gleixner <tglx@linutronix.de>2024-02-26 11:37:31 +0100
commitf04e51220ad5cf35540f67f3ca15c8617c1f0bef (patch)
treeb271e38923c83973d8e02cdd246ff158795aee6e /kernel
parenttick: Start centralizing tick related CPU hotplug operations (diff)
downloadlinux-f04e51220ad5cf35540f67f3ca15c8617c1f0bef.tar.xz
linux-f04e51220ad5cf35540f67f3ca15c8617c1f0bef.zip
tick: Move tick cancellation up to CPUHP_AP_TICK_DYING
The tick hrtimer is cancelled right before hrtimers are migrated. This is done from the hrtimer subsystem even though it shouldn't know about its actual users. Move instead the tick hrtimer cancellation to the relevant CPU hotplug state that aims at centralizing high level tick shutdown operations so that the related flow is easy to follow. Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20240225225508.11587-9-frederic@kernel.org
Diffstat (limited to 'kernel')
-rw-r--r--kernel/time/hrtimer.c2
-rw-r--r--kernel/time/tick-common.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 95f1f351dcd9..3e95474199ac 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -2229,8 +2229,6 @@ int hrtimers_cpu_dying(unsigned int dying_cpu)
int i, ncpu = cpumask_any_and(cpu_active_mask, housekeeping_cpumask(HK_TYPE_TIMER));
struct hrtimer_cpu_base *old_base, *new_base;
- tick_cancel_sched_timer(dying_cpu);
-
old_base = this_cpu_ptr(&hrtimer_bases);
new_base = &per_cpu(hrtimer_bases, ncpu);
diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index a89ef450fda7..b4af8c743b73 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -410,6 +410,8 @@ int tick_cpu_dying(unsigned int dying_cpu)
if (tick_do_timer_cpu == dying_cpu)
tick_do_timer_cpu = cpumask_first(cpu_online_mask);
+ tick_cancel_sched_timer(dying_cpu);
+
return 0;
}