diff options
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kernel/perf_cpum_sf.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c index eaab9a7cb3be..a8e832166417 100644 --- a/arch/s390/kernel/perf_cpum_sf.c +++ b/arch/s390/kernel/perf_cpum_sf.c @@ -1510,7 +1510,6 @@ static void cpumf_measurement_alert(struct ext_code ext_code, static int cpumf_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu) { - unsigned int cpu = (long) hcpu; int flags; /* Ignore the notification if no events are scheduled on the PMU. @@ -1523,11 +1522,15 @@ static int cpumf_pmu_notifier(struct notifier_block *self, case CPU_ONLINE: case CPU_DOWN_FAILED: flags = PMC_INIT; - smp_call_function_single(cpu, setup_pmc_cpu, &flags, 1); + local_irq_disable(); + setup_pmc_cpu(&flags); + local_irq_enable(); break; case CPU_DOWN_PREPARE: flags = PMC_RELEASE; - smp_call_function_single(cpu, setup_pmc_cpu, &flags, 1); + local_irq_disable(); + setup_pmc_cpu(&flags); + local_irq_enable(); break; default: break; |