1 files changed, 4 insertions, 2 deletions

diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index d8c0eb480f9a..5b966472b458 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -366,6 +366,7 @@ struct hw_perf_counter {
         };
         atomic64_t                      prev_count;
         u64                             sample_period;
+        u64                             last_period;
         atomic64_t                      period_left;
         u64                             interrupts;
 
@@ -606,8 +607,9 @@ extern int hw_perf_group_sched_in(struct perf_counter *group_leader,
 extern void perf_counter_update_userpage(struct perf_counter *counter);
 
 struct perf_sample_data {
-        struct pt_regs  *regs;
-        u64             addr;
+        struct pt_regs          *regs;
+        u64                     addr;
+        u64                     period;
 };
 
 extern int perf_counter_overflow(struct perf_counter *counter, int nmi,