diff options
Diffstat (limited to 'arch/x86/kernel/cpu/perf_counter.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_counter.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index 49f2585..240ca56 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -696,10 +696,11 @@ static int __hw_perf_counter_init(struct perf_counter *counter) if (!attr->exclude_kernel) hwc->config |= ARCH_PERFMON_EVENTSEL_OS; - if (!hwc->sample_period) + if (!hwc->sample_period) { hwc->sample_period = x86_pmu.max_period; + atomic64_set(&hwc->period_left, hwc->sample_period); + } - atomic64_set(&hwc->period_left, hwc->sample_period); counter->destroy = hw_perf_counter_destroy; /* |