--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/shared/cardTableBarrierSet.inline.hpp	Mon Mar 19 07:38:18 2018 +0100
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP
+#define SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP
+
+#include "gc/shared/cardTableBarrierSet.hpp"
+#include "gc/shared/cardTable.hpp"
+#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) {
+    // 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();
+  }
+}
+
+#endif // SHARE_VM_GC_SHARED_CARDTABLEBARRIERSET_INLINE_HPP