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src/hotspot/share/gc/shared/cardTableBarrierSet.inline.hpp

8202083_CMS_cleanup_runtime
 #include "runtime/orderAccess.inline.hpp"
 
 template <DecoratorSet decorators, typename T>
 inline void CardTableBarrierSet::write_ref_field_post(T* field, oop newVal) {
   volatile jbyte* byte = _card_table->byte_for(field);
-  if (UseConcMarkSweepGC) {
+  if (_card_table->scanned_concurrently()) {
     // Perform a releasing store if using CMS so that it may
     // scan and clear the cards concurrently during pre-cleaning.
     OrderAccess::release_store(byte, CardTable::dirty_card_val());
   } else {
     *byte = CardTable::dirty_card_val();
    
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