diff -r 902cef494e66 -r 91a758925be7 src/hotspot/share/runtime/vmOperations.hpp
--- a/src/hotspot/share/runtime/vmOperations.hpp	Thu Aug 15 14:00:36 2019 +0800
+++ b/src/hotspot/share/runtime/vmOperations.hpp	Thu Aug 15 09:06:42 2019 +0200
@@ -146,7 +146,6 @@
 
  private:
   Thread*         _calling_thread;
-  ThreadPriority  _priority;
   long            _timestamp;
   VM_Operation*   _next;
   VM_Operation*   _prev;
@@ -160,8 +159,7 @@
 
   // VM operation support (used by VM thread)
   Thread* calling_thread() const                 { return _calling_thread; }
-  ThreadPriority priority()                      { return _priority; }
-  void set_calling_thread(Thread* thread, ThreadPriority priority);
+  void set_calling_thread(Thread* thread);
 
   long timestamp() const              { return _timestamp; }
   void set_timestamp(long timestamp)  { _timestamp = timestamp; }