1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index 53abcbefa0b..d988dfb4bba 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -50,7 +50,7 @@ static atomic_t nr_task_counters __read_mostly;
  *  1 - disallow cpu counters to unpriv
  *  2 - disallow kernel profiling to unpriv
  */
-int sysctl_perf_counter_paranoid __read_mostly;
+int sysctl_perf_counter_paranoid __read_mostly = 1;
 
 static inline bool perf_paranoid_cpu(void)
 {
@@ -4103,6 +4103,7 @@ perf_counter_alloc(struct perf_counter_attr *attr,
         hwc->sample_period = attr->sample_period;
         if (attr->freq && attr->sample_freq)
                 hwc->sample_period = 1;
+        hwc->last_period = hwc->sample_period;
 
         atomic64_set(&hwc->period_left, hwc->sample_period);