1 /*
 2  * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
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24 
25 #ifndef SHARE_VM_GC_SHARED_CARDTABLEMODREFBS_INLINE_HPP
26 #define SHARE_VM_GC_SHARED_CARDTABLEMODREFBS_INLINE_HPP
27 
28 #include "gc/shared/cardTableModRefBS.hpp"
29 #include "gc/shared/cardTable.hpp"
30 #include "runtime/orderAccess.inline.hpp"
31 
32 template <DecoratorSet decorators, typename T>
33 inline void CardTableModRefBS::write_ref_field_post(T* field, oop newVal) {
34   volatile jbyte* byte = _card_table->byte_for(field);
35   if (UseConcMarkSweepGC) {
36     // Perform a releasing store if using CMS so that it may
37     // scan and clear the cards concurrently during pre-cleaning.
38     OrderAccess::release_store(byte, CardTable::dirty_card_val());
39   } else {
40     *byte = CardTable::dirty_card_val();
41   }
42 }
43 
44 #endif // SHARE_VM_GC_SHARED_CARDTABLEMODREFBS_INLINE_HPP