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

rev 8825 : [mq]: rev2

@@ -239,10 +239,13 @@
 
   // 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 the region at the specified index, which must be available and free.
+  void shrink_at(uint index);
+
   void verify();
 
   // Do some sanity checking.
   void verify_optional() PRODUCT_RETURN;
 };