diff options
Diffstat (limited to 'kernel/events')
| -rw-r--r-- | kernel/events/core.c | 4 |
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; |