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perf/hw_breakpoint: Replace deprecated CPU-hotplug functions

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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>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210803141621.780504-12-bigeasy@linutronix.de
This commit is contained in:
Sebastian Andrzej Siewior 2021-08-03 16:15:54 +02:00 committed by Ingo Molnar
parent eda8a2c599
commit ffec09f9c7
1 changed files with 2 additions and 2 deletions
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4
kernel/events/hw_breakpoint.c
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@ -568,7 +568,7 @@ register_wide_hw_breakpoint(struct perf_event_attr *attr,
if (!cpu_events)
return (void __percpu __force *)ERR_PTR(-ENOMEM);
get_online_cpus();
cpus_read_lock();
for_each_online_cpu(cpu) {
bp = perf_event_create_kernel_counter(attr, cpu, NULL,
triggered, context);
@ -579,7 +579,7 @@ register_wide_hw_breakpoint(struct perf_event_attr *attr,
per_cpu(*cpu_events, cpu) = bp;
}
put_online_cpus();
cpus_read_unlock();
if (likely(!err))
return cpu_events;