msg/async: remove the unnecessary checking to wakup event_wait

Signed-off-by: Zhi Zhang <zhangz.david@outlook.com>
Abhishekvrshny · Jun 27, 2016 · 560dc32 · 560dc32
1 parent 14999db
commit 560dc32
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/msg/async/Event.cc b/src/msg/async/Event.cc
@@ -262,15 +262,15 @@ void EventCenter::delete_time_event(uint64_t id)
 
 void EventCenter::wakeup()
 {
-  if (already_wakeup.compare_and_swap(0, 1)) {
     ldout(cct, 1) << __func__ << dendl;
+    already_wakeup.compare_and_swap(0, 1);
+
     char buf[1];
     buf[0] = 'c';
     // wake up "event_wait"
     int n = write(notify_send_fd, buf, 1);
     // FIXME ?
     assert(n == 1);
-  }
 }
 
 int EventCenter::process_time_events()