src/share/vm/runtime/biasedLocking.cpp

*** 40,52 ****
  BiasedLockingCounters BiasedLocking::_counters;
  
  static GrowableArray<Handle>*  _preserved_oop_stack  = NULL;
  static GrowableArray<markOop>* _preserved_mark_stack = NULL;
  
! static void enable_biased_locking(Klass* k) {
    k->set_prototype_header(markOopDesc::biased_locking_prototype());
! }
  
  class VM_EnableBiasedLocking: public VM_Operation {
   private:
    bool _is_cheap_allocated;
   public:
--- 40,56 ----
  BiasedLockingCounters BiasedLocking::_counters;
  
  static GrowableArray<Handle>*  _preserved_oop_stack  = NULL;
  static GrowableArray<markOop>* _preserved_mark_stack = NULL;
  
! class EnableBiasedLocking : public KlassClosure {
!   void do_klass(Klass* k) {
!     if (k->is_instance_klass()) {
        k->set_prototype_header(markOopDesc::biased_locking_prototype());
!     }
!   }
! };
  
  class VM_EnableBiasedLocking: public VM_Operation {
   private:
    bool _is_cheap_allocated;
   public:
*** 56,66 ****
    bool is_cheap_allocated() const { return _is_cheap_allocated; }
  
    void doit() {
      // Iterate the system dictionary enabling biased locking for all
      // currently loaded classes
!     SystemDictionary::classes_do(enable_biased_locking);
      // Indicate that future instances should enable it as well
      _biased_locking_enabled = true;
  
      log_info(biasedlocking)("Biased locking enabled");
    }
--- 60,71 ----
    bool is_cheap_allocated() const { return _is_cheap_allocated; }
  
    void doit() {
      // Iterate the system dictionary enabling biased locking for all
      // currently loaded classes
!     EnableBiasedLocking enable_biased_locking;
!     ClassLoaderDataGraph::loaded_classes_do(&enable_biased_locking);
      // Indicate that future instances should enable it as well
      _biased_locking_enabled = true;
  
      log_info(biasedlocking)("Biased locking enabled");
    }