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-rw-r--r--include/linux/perf_event.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 441992a9775c..f34dab9b275e 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -671,6 +671,7 @@ struct perf_event {
enum perf_event_active_state state;
unsigned int attach_state;
atomic64_t count;
+ atomic64_t child_count;
/*
* These are the total time in nanoseconds that the event