diff options
| -rw-r--r-- | arch/x86/kernel/cpu/perf_counter.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index 886dcf334bc..5bfd30ab392 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -286,6 +286,9 @@ static int __hw_perf_counter_init(struct perf_counter *counter) hwc->nmi = 1; } + if (!hwc->irq_period) + hwc->irq_period = x86_pmu.max_period; + atomic64_set(&hwc->period_left, min(x86_pmu.max_period, hwc->irq_period)); |