1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 9cea32a0655d..6bc250039738 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -106,6 +106,7 @@ enum perf_counter_sample_format {
         PERF_SAMPLE_CALLCHAIN           = 1U << 5,
         PERF_SAMPLE_ID                  = 1U << 6,
         PERF_SAMPLE_CPU                 = 1U << 7,
+        PERF_SAMPLE_PERIOD              = 1U << 8,
 };
 
 /*
@@ -260,6 +261,7 @@ enum perf_event_type {
          * struct {
          *      struct perf_event_header        header;
          *      u64                             time;
+         *      u64                             id;
          *      u64                             sample_period;
          * };
          */