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8160539: Stack frame scanning acquires DerivedPointerTableGC_lock mutex

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Use lock-free stack for accumulating table entries.

Reviewed-by: tschatzl, kvn
This commit is contained in:
Kim Barrett 2019-05-16 20:14:54 -04:00
parent 989fa190a6
commit 4af7663979
4 changed files with 43 additions and 43 deletions
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2
src/hotspot/share/runtime/mutexLocker.cpp
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@ -89,7 +89,6 @@ Mutex* MarkStackFreeList_lock = NULL;
Mutex* MarkStackChunkList_lock = NULL;
Mutex* MonitoringSupport_lock = NULL;
Mutex* ParGCRareEvent_lock = NULL;
Mutex* DerivedPointerTableGC_lock = NULL;
Monitor* CGCPhaseManager_lock = NULL;
Mutex* Compile_lock = NULL;
Monitor* MethodCompileQueue_lock = NULL;
@ -250,7 +249,6 @@ void mutex_init() {
def(StringDedupTable_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
}
def(ParGCRareEvent_lock , PaddedMutex , leaf , true, Monitor::_safepoint_check_always);
def(DerivedPointerTableGC_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
def(CGCPhaseManager_lock , PaddedMonitor, leaf, false, Monitor::_safepoint_check_always);
def(CodeCache_lock , PaddedMutex , special, true, Monitor::_safepoint_check_never);
def(RawMonitor_lock , PaddedMutex , special, true, Monitor::_safepoint_check_never);