Commit eda8a2c5 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Ingo Molnar
Browse files

perf/x86/intel: 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: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210803141621.780504-11-bigeasy@linutronix.de
parent 4f32da76

arch/x86/events/intel/core.c

+4 −4
Original line number Diff line number Diff line
@@ -5032,9 +5032,9 @@ static ssize_t freeze_on_smi_store(struct device *cdev, 


	x86_pmu.attr_freeze_on_smi = val;



	get_online_cpus();

	cpus_read_lock();

	on_each_cpu(flip_smm_bit, &val, 1);

	put_online_cpus();

	cpus_read_unlock();

done:

	mutex_unlock(&freeze_on_smi_mutex);
@@ -5077,9 +5077,9 @@ static ssize_t set_sysctl_tfa(struct device *cdev, 


	allow_tsx_force_abort = val;



	get_online_cpus();

	cpus_read_lock();

	on_each_cpu(update_tfa_sched, NULL, 1);

	put_online_cpus();

	cpus_read_unlock();



	return count;

}

arch/x86/events/intel/pt.c

+2 −2
Original line number Diff line number Diff line
@@ -1708,7 +1708,7 @@ static __init int pt_init(void) 
	if (!boot_cpu_has(X86_FEATURE_INTEL_PT))

		return -ENODEV;



	get_online_cpus();

	cpus_read_lock();

	for_each_online_cpu(cpu) {

		u64 ctl;
@@ -1716,7 +1716,7 @@ static __init int pt_init(void) 
		if (!ret && (ctl & RTIT_CTL_TRACEEN))

			prior_warn++;

	}

	put_online_cpus();

	cpus_read_unlock();



	if (prior_warn) {

		x86_add_exclusive(x86_lbr_exclusive_pt);