151   size_t max_size() const { return _reserved.byte_size(); }
 152 
 153   // The max this generation can grow to if the boundary between
 154   // the generations are allowed to move.
 155   size_t gen_size_limit() const { return _max_gen_size; }
 156 
 157   bool is_maximal_no_gc() const {
 158     return true;  // Never expands except at a GC
 159   }
 160 
 161   // Allocation
 162   HeapWord* allocate(size_t word_size) {
 163     HeapWord* result = eden_space()->cas_allocate(word_size);
 164     return result;
 165   }
 166 
 167   HeapWord* volatile* top_addr() const   { return eden_space()->top_addr(); }
 168   HeapWord** end_addr() const   { return eden_space()->end_addr(); }
 169 
 170   // Iteration.
 171   void oop_iterate(ExtendedOopClosure* cl);
 172   void object_iterate(ObjectClosure* cl);
 173 
 174   virtual void reset_after_change();
 175   virtual void reset_survivors_after_shrink();
 176 
 177   // Performance Counter support
 178   void update_counters();
 179 
 180   // Debugging - do not use for time critical operations
 181   void print() const;
 182   void print_on(outputStream* st) const;
 183   void print_used_change(size_t prev_used) const;
 184   virtual const char* name() const { return "PSYoungGen"; }
 185 
 186   void verify();
 187 
 188   // Space boundary invariant checker
 189   void space_invariants() PRODUCT_RETURN;
 190 
 191   // Helper for mangling survivor spaces.

 151   size_t max_size() const { return _reserved.byte_size(); }
 152 
 153   // The max this generation can grow to if the boundary between
 154   // the generations are allowed to move.
 155   size_t gen_size_limit() const { return _max_gen_size; }
 156 
 157   bool is_maximal_no_gc() const {
 158     return true;  // Never expands except at a GC
 159   }
 160 
 161   // Allocation
 162   HeapWord* allocate(size_t word_size) {
 163     HeapWord* result = eden_space()->cas_allocate(word_size);
 164     return result;
 165   }
 166 
 167   HeapWord* volatile* top_addr() const   { return eden_space()->top_addr(); }
 168   HeapWord** end_addr() const   { return eden_space()->end_addr(); }
 169 
 170   // Iteration.
 171   void oop_iterate(OopIterateClosure* cl);
 172   void object_iterate(ObjectClosure* cl);
 173 
 174   virtual void reset_after_change();
 175   virtual void reset_survivors_after_shrink();
 176 
 177   // Performance Counter support
 178   void update_counters();
 179 
 180   // Debugging - do not use for time critical operations
 181   void print() const;
 182   void print_on(outputStream* st) const;
 183   void print_used_change(size_t prev_used) const;
 184   virtual const char* name() const { return "PSYoungGen"; }
 185 
 186   void verify();
 187 
 188   // Space boundary invariant checker
 189   void space_invariants() PRODUCT_RETURN;
 190 
 191   // Helper for mangling survivor spaces.