diff --git a/src/hotspot/share/gc/g1/g1BarrierSet.hpp b/src/hotspot/share/gc/g1/g1BarrierSet.hpp
index 0234c8c..21a9780 100644
--- a/src/hotspot/share/gc/g1/g1BarrierSet.hpp
+++ b/src/hotspot/share/gc/g1/g1BarrierSet.hpp
@@ -49,9 +49,13 @@ class G1BarrierSet: public CardTableBarrierSet {
 
   static void enqueue_if_weak_or_archive(DecoratorSet decorators, oop value);
 
-  template <class T> void write_ref_array_pre_work(T* dst, int count);
-  virtual void write_ref_array_pre(oop* dst, int count, bool dest_uninitialized);
-  virtual void write_ref_array_pre(narrowOop* dst, int count, bool dest_uninitialized);
+  template <class T> void write_ref_array_pre_work(T* dst, size_t count);
+  virtual void write_ref_array_pre(oop* dst, size_t count, bool dest_uninitialized);
+  virtual void write_ref_array_pre(narrowOop* dst, size_t count, bool dest_uninitialized);
+
+  static void write_ref_array_pre_oop_entry(oop* dst, size_t length);
+  static void write_ref_array_pre_narrow_oop_entry(narrowOop* dst, size_t length);
+  static void write_ref_array_post_entry(HeapWord* dst, size_t length);
 
   template <DecoratorSet decorators, typename T>
   void write_ref_field_pre(T* field);