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

rev 8825 : [mq]: rev2
rev 8826 : [mq]: rev3

*** 239,248 ****
--- 239,252 ----
  
    // Uncommit up to num_regions_to_remove regions that are completely free.
    // Return the actual number of uncommitted regions.
    uint shrink_by(uint num_regions_to_remove);
  
+   // Uncommit a number of regions starting at the specified index, which must be available,
+   // empty, and free.
+   void shrink_at(uint index, size_t num_regions);
+ 
    void verify();
  
    // Do some sanity checking.
    void verify_optional() PRODUCT_RETURN;
  };