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: 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/20210803141621.780504-11-bigeasy@linutronix.de

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index ac6fd2d..7011e87 100644 (file)
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -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;
 }

diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
index b044577..7f406c1 100644 (file)
--- a/arch/x86/events/intel/pt.c
+++ b/arch/x86/events/intel/pt.c
@@ -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);