--- old/src/hotspot/share/runtime/threadSMR.cpp	2019-11-21 11:58:32.004362620 +0100
+++ new/src/hotspot/share/runtime/threadSMR.cpp	2019-11-21 11:58:31.476353704 +0100
@@ -134,7 +134,7 @@
 // 'inline' functions first so the definitions are before first use:
 
 inline void ThreadsSMRSupport::add_deleted_thread_times(uint add_value) {
-  Atomic::add(add_value, &_deleted_thread_times);
+  Atomic::add(&_deleted_thread_times, add_value);
 }
 
 inline void ThreadsSMRSupport::inc_deleted_thread_cnt() {
@@ -156,7 +156,7 @@
       // No need to update max value so we're done.
       break;
     }
-    if (Atomic::cmpxchg(new_value, &_deleted_thread_time_max, cur_value) == cur_value) {
+    if (Atomic::cmpxchg(&_deleted_thread_time_max, cur_value, new_value) == cur_value) {
       // Updated max value so we're done. Otherwise try it all again.
       break;
     }
@@ -170,7 +170,7 @@
 }
 
 inline ThreadsList* ThreadsSMRSupport::xchg_java_thread_list(ThreadsList* new_list) {
-  return (ThreadsList*)Atomic::xchg(new_list, &_java_thread_list);
+  return (ThreadsList*)Atomic::xchg(&_java_thread_list, new_list);
 }
 
 // Hash table of pointers found by a scan. Used for collecting hazard