--- old/src/hotspot/share/runtime/threadSMR.inline.hpp	2019-11-21 11:58:32.688374169 +0100
+++ new/src/hotspot/share/runtime/threadSMR.inline.hpp	2019-11-21 11:58:32.200365929 +0100
@@ -56,7 +56,7 @@
 // they are called by public inline update_tlh_stats() below:
 
 inline void ThreadsSMRSupport::add_tlh_times(uint add_value) {
-  Atomic::add(add_value, &_tlh_times);
+  Atomic::add(&_tlh_times, add_value);
 }
 
 inline void ThreadsSMRSupport::inc_tlh_cnt() {
@@ -70,7 +70,7 @@
       // No need to update max value so we're done.
       break;
     }
-    if (Atomic::cmpxchg(new_value, &_tlh_time_max, cur_value) == cur_value) {
+    if (Atomic::cmpxchg(&_tlh_time_max, cur_value, new_value) == cur_value) {
       // Updated max value so we're done. Otherwise try it all again.
       break;
     }