diff options
Diffstat (limited to 'kernel/perf_counter.c')
| -rw-r--r-- | kernel/perf_counter.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 36f65e2b8b57..d7cbc579fc80 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) { @@ -1791,7 +1791,7 @@ static int perf_counter_read_group(struct perf_counter *counter, size += err; list_for_each_entry(sub, &leader->sibling_list, list_entry) { - err = perf_counter_read_entry(counter, read_format, + err = perf_counter_read_entry(sub, read_format, buf + size); if (err < 0) return err; @@ -4066,6 +4066,7 @@ 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); |