src/hotspot/share/gc/g1/heapRegionManager.hpp

*** 170,184 ****
--- 170,195 ----
    inline HeapRegion* addr_to_region(HeapWord* addr) const;
  
    // Insert the given region into the free region list.
    inline void insert_into_free_list(HeapRegion* hr);
  
+   // Abandon the current free list to allow for a rebuild. The actual
+   // region in the free list must be handled separately.
+   void abandon_free_list() {
+     _free_list.abandon();
+   }
+ 
    // Insert the given region list into the global free region list.
    void insert_list_into_free_list(FreeRegionList* list) {
      _free_list.add_ordered(list);
    }
  
+   // Append the list to the current list, requires the lists to be sorted.
+   void append_to_free_list(FreeRegionList* list) {
+     _free_list.append_ordered(list);
+   }
+ 
    // Allocate a free region with specific node index. If fails allocate with next node index.
    virtual HeapRegion* allocate_free_region(HeapRegionType type, uint requested_node_index);
  
    inline void allocate_free_regions_starting_at(uint first, uint num_regions);