diff options
Diffstat (limited to 'kernel/events')
| -rw-r--r-- | kernel/events/core.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index ce64f3fed5c6..294f1927f944 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -3673,10 +3673,7 @@ unlock: static inline u64 perf_event_count(struct perf_event *event) { - if (event->pmu->count) - return event->pmu->count(event); - - return __perf_event_count(event); + return local64_read(&event->count) + atomic64_read(&event->child_count); } /* @@ -3707,15 +3704,6 @@ int perf_event_read_local(struct perf_event *event, u64 *value) goto out; } - /* - * It must not have a pmu::count method, those are not - * NMI safe. - */ - if (event->pmu->count) { - ret = -EOPNOTSUPP; - goto out; - } - /* If this is a per-task event, it must be for current */ if ((event->attach_state & PERF_ATTACH_TASK) && event->hw.target != current) { |