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8183198: Factor out thread state serialization into a proper helper function

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Reviewed-by: tschatzl, eosterlund, coleenp
This commit is contained in:
Mikael Gerdin 2017-06-26 15:25:25 +02:00
parent cf0d8c433e
commit d39a34d689
10 changed files with 50 additions and 233 deletions
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12
hotspot/src/share/vm/runtime/thread.cpp
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@ -2398,16 +2398,8 @@ void JavaThread::check_safepoint_and_suspend_for_native_trans(JavaThread *thread
thread->set_thread_state(_thread_blocked);
thread->java_suspend_self();
thread->set_thread_state(state);
// Make sure new state is seen by VM thread
if (os::is_MP()) {
if (UseMembar) {
// Force a fence between the write above and read below
OrderAccess::fence();
} else {
// Must use this rather than serialization page in particular on Windows
InterfaceSupport::serialize_memory(thread);
}
}
InterfaceSupport::serialize_thread_state_with_handler(thread);
}
if (SafepointSynchronize::do_call_back()) {