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Code Issues Releases Wiki Activity

clocksource: Replace deprecated CPU-hotplug functions. 

The functions get_online_cpus() and put_online_cpus() have been
deprecated during the CPU hotplug rework. They map directly to
cpus_read_lock() and cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210803141621.780504-35-bigeasy@linutronix.de
This commit is contained in:
Sebastian Andrzej Siewior 2021-08-03 16:16:17 +02:00 committed by Thomas Gleixner
parent 36a21d5172
commit 698429f9d0
1 changed files with 3 additions and 3 deletions
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6
kernel/time/clocksource.c
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@ -306,12 +306,12 @@ void clocksource_verify_percpu(struct clocksource *cs)
return;
cpumask_clear(&cpus_ahead);
cpumask_clear(&cpus_behind);
get_online_cpus();
cpus_read_lock();
preempt_disable();
clocksource_verify_choose_cpus();
if (cpumask_weight(&cpus_chosen) == 0) {
preempt_enable();
put_online_cpus();
cpus_read_unlock();
pr_warn("Not enough CPUs to check clocksource '%s'.\n", cs->name);
return;
}
@ -337,7 +337,7 @@ void clocksource_verify_percpu(struct clocksource *cs)
cs_nsec_min = cs_nsec;
}
preempt_enable();
put_online_cpus();
cpus_read_unlock();
if (!cpumask_empty(&cpus_ahead))
pr_warn(" CPUs %*pbl ahead of CPU %d for clocksource %s.\n",
cpumask_pr_args(&cpus_ahead), testcpu, cs->name);