src/hotspot/share/gc/g1/heapRegionSet.cpp

rev 51649 : version 1
rev 51878 : Minor changes
rev 52017 : All changes for G1 GC moved from 'combined' repo folder

@@ -232,10 +232,26 @@
          name(), length(), old_length, num_regions);
 
   verify_optional();
 }
 
+uint FreeRegionList::num_of_regions_in_range(uint start, uint end) const {
+  HeapRegion* cur = _head;
+  uint num = 0;
+  bool started = false;
+  while (cur != NULL && cur->hrm_index() <= end) {
+    if (!started && cur->hrm_index() >= start) {
+      started = true;
+    }
+    if(started) {
+      num++;
+    }
+    cur = cur->next();
+  }
+  return num;
+}
+
 void FreeRegionList::verify() {
   // See comment in HeapRegionSetBase::verify() about MT safety and
   // verification.
   check_mt_safety();