src/hotspot/share/runtime/objectMonitor.hpp

rev 57560 : imported patch 8236035.patch.cr0
rev 57561 : dholmes CR - rename simply_set_owner_from() -> set_owner_from() and simply_set_owner_from_BasicLock() -> set_owner_from_BasicLock(); rename release_clear_owner_with_barrier() -> release_clear_owner() and refactor barrier code back into the call sites.

@@ -230,11 +230,19 @@
   const char* is_busy_to_string(stringStream* ss);
 
   intptr_t  is_entered(Thread* current) const;
 
   void*     owner() const;
-  void      set_owner(void* owner);
+  // Clear _owner field; current value must match old_value.
+  void      release_clear_owner(void* old_value);
+  // Simply set _owner field to new_value; current value must match old_value.
+  void      set_owner_from(void* old_value, void* new_value);
+  // Simply set _owner field to self; current value must match basic_lock_p.
+  void      set_owner_from_BasicLock(void* basic_lock_p, Thread* self);
+  // Try to set _owner field to new_value if the current value matches
+  // old_value. Otherwise, does not change the _owner field.
+  void*     try_set_owner_from(void* old_value, void* new_value);
 
   jint      waiters() const;
 
   jint      contentions() const;
   intx      recursions() const                                         { return _recursions; }