src/share/vm/gc_implementation/g1/heapRegionRemSet.cpp

rev 7558 : 8048179: Early reclaim of large objects that are referenced by a few objects
Summary:
Reviewed-by:
rev 7559 : imported patch bengt-review
rev 7560 : [mq]: bengt-review2

*** 679,688 ****
--- 679,700 ----
    // Since we may have deleted a from_card_cache entry from the RS, clear
    // the FCC.
    clear_fcc();
  }
  
+ bool OtherRegionsTable::occupancy_less_or_equal_than(size_t limit) const {
+   if (limit <= (size_t)G1RSetSparseRegionEntries) {
+     return occ_coarse() == 0 && _first_all_fine_prts == NULL && occ_sparse() <= limit;      
+   } else {
+     // Current uses of this method may only use values less than G1RSetSparseRegionEntries
+     // for the limit. The solution, comparing against occupied() would be too slow
+     // at this time.
+     Unimplemented();
+     return false;
+   }
+ }
+ 
  bool OtherRegionsTable::is_empty() const {
    return occ_sparse() == 0 && occ_coarse() == 0 && _first_all_fine_prts == NULL;
  }
  
  size_t OtherRegionsTable::occupied() const {