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8226228: Make Threads_lock an always safepoint checked lock

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Reviewed-by: coleenp, dcubed, dholmes
This commit is contained in:
Robbin Ehn 2019-08-09 11:04:08 +02:00
parent 98fb7b85e5
commit c6446d44b7
10 changed files with 32 additions and 20 deletions
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2
src/hotspot/share/runtime/mutexLocker.cpp
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@ -287,7 +287,7 @@ void mutex_init() {
// CMS_bitMap_lock leaf 1
// CMS_freeList_lock leaf 2
def(Threads_lock , PaddedMonitor, barrier, true, Monitor::_safepoint_check_sometimes); // Used for safepoint protocol.
def(Threads_lock , PaddedMonitor, barrier, true, Monitor::_safepoint_check_always); // Used for safepoint protocol.
def(NonJavaThreadsList_lock , PaddedMutex, leaf, true, Monitor::_safepoint_check_never);
def(NonJavaThreadsListSync_lock , PaddedMutex, leaf, true, Monitor::_safepoint_check_never);