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-rw-r--r--kernel/events/internal.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/events/internal.h b/kernel/events/internal.h
index 09097dd8116..64568a69937 100644
--- a/kernel/events/internal.h
+++ b/kernel/events/internal.h
@@ -22,6 +22,9 @@ struct ring_buffer {
local_t lost; /* nr records lost */
long watermark; /* wakeup watermark */
+ /* poll crap */
+ spinlock_t event_lock;
+ struct list_head event_list;
struct perf_event_mmap_page *user_page;
void *data_pages[0];