--- old/src/share/vm/gc/g1/heapRegion.cpp	2016-07-15 15:55:07.449128596 +0200
+++ new/src/share/vm/gc/g1/heapRegion.cpp	2016-07-15 15:55:07.359125910 +0200
@@ -167,7 +167,7 @@
   init_top_at_mark_start();
 }
 
-void HeapRegion::hr_clear(bool par, bool clear_space, bool locked) {
+void HeapRegion::hr_clear(bool keep_remset, bool clear_space, bool locked) {
   assert(_humongous_start_region == NULL,
          "we should have already filtered out humongous regions");
   assert(!in_collection_set(),
@@ -179,15 +179,14 @@
   set_free();
   reset_pre_dummy_top();
 
-  if (!par) {
-    // If this is parallel, this will be done later.
-    HeapRegionRemSet* hrrs = rem_set();
+  if (!keep_remset) {
     if (locked) {
-      hrrs->clear_locked();
+      rem_set()->clear_locked();
     } else {
-      hrrs->clear();
+      rem_set()->clear();  
     }
   }
+
   zero_marked_bytes();
 
   init_top_at_mark_start();