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8186837: Memory ordering nmethod, _state and _stack_traversal_mark

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Reviewed-by: dholmes, rkennke
This commit is contained in:
Robbin Ehn 2017-08-31 08:18:47 +02:00
parent de3cc93ca6
commit d38975f83c
4 changed files with 9 additions and 8 deletions
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8
hotspot/src/share/vm/code/nmethod.hpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2017, 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
@ -136,7 +136,7 @@ class nmethod : public CompiledMethod {
// stack. An not_entrant method can be removed when there are no
// more activations, i.e., when the _stack_traversal_mark is less than
// current sweep traversal index.
volatile jlong _stack_traversal_mark;
volatile long _stack_traversal_mark;
// The _hotness_counter indicates the hotness of a method. The higher
// the value the hotter the method. The hotness counter of a nmethod is
@ -396,8 +396,8 @@ public:
public:
// Sweeper support
jlong stack_traversal_mark() { return OrderAccess::load_acquire(&_stack_traversal_mark); }
void set_stack_traversal_mark(jlong l) { OrderAccess::release_store(&_stack_traversal_mark, l); }
long stack_traversal_mark() { return _stack_traversal_mark; }
void set_stack_traversal_mark(long l) { _stack_traversal_mark = l; }
// implicit exceptions support
address continuation_for_implicit_exception(address pc);