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-rw-r--r--kernel/events/core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index f6ea33a9f904..80f456ec5d89 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5246,8 +5246,8 @@ void perf_event_update_userpage(struct perf_event *event)
userpg = rb->user_page;
/*
- * Disable preemption so as to not let the corresponding user-space
- * spin too long if we get preempted.
+ * Disable preemption to guarantee consistent time stamps are stored to
+ * the user page.
*/
preempt_disable();
++userpg->lock;