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8158854: Ensure release_store is paired with load_acquire in lock-free code

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Reviewed-by: shade, dcubed, zgu
This commit is contained in:
David Holmes 2016-08-29 20:13:45 -04:00
parent 56ff858c45
commit 6db26ca5bf
10 changed files with 87 additions and 23 deletions
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39
hotspot/src/share/vm/oops/arrayKlass.inline.hpp Normal file
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/*
* Copyright (c) 2016, 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_OOPS_ARRAYKLASS_INLINE_HPP
#define SHARE_VM_OOPS_ARRAYKLASS_INLINE_HPP
#include "runtime/orderAccess.inline.hpp"
#include "oops/arrayKlass.hpp"
inline Klass* ArrayKlass::higher_dimension_acquire() const {
return (Klass*) OrderAccess::load_ptr_acquire(&_higher_dimension);
}
inline void ArrayKlass::release_set_higher_dimension(Klass* k) {
OrderAccess::release_store_ptr(&_higher_dimension, k);
}
#endif // SHARE_VM_OOPS_ARRAYKLASS_INLINE_HPP