hg: jdk/jdk: 8153224: Monitor deflation prolong safepoints

[daniel.daugherty at oracle.com]

Changeset: 629b14c63b75
Author:    dcubed
Date:      2020-06-01 23:37 -0400
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/629b14c63b75

8153224: Monitor deflation prolong safepoints
Summary: Add support for AsyncDeflateIdleMonitors (default true); the async deflation work is performed by the ServiceThread.
Reviewed-by: dcubed, rehn, rkennke, cvarming, coleenp, acorn, dholmes, eosterlund
Contributed-by: varming at gmail.com, daniel.daugherty at oracle.com

! src/hotspot/share/prims/jvm.cpp
! src/hotspot/share/prims/jvmtiEnvBase.cpp
! src/hotspot/share/prims/whitebox.cpp
! src/hotspot/share/runtime/basicLock.cpp
! src/hotspot/share/runtime/globals.hpp
! src/hotspot/share/runtime/init.cpp
! src/hotspot/share/runtime/objectMonitor.cpp
! src/hotspot/share/runtime/objectMonitor.hpp
! src/hotspot/share/runtime/objectMonitor.inline.hpp
! src/hotspot/share/runtime/safepoint.cpp
! src/hotspot/share/runtime/serviceThread.cpp
! src/hotspot/share/runtime/sharedRuntime.cpp
! src/hotspot/share/runtime/synchronizer.cpp
! src/hotspot/share/runtime/synchronizer.hpp
! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/vframe.cpp
! src/hotspot/share/runtime/vmOperations.cpp
! src/hotspot/share/runtime/vmOperations.hpp
! src/hotspot/share/runtime/vmStructs.cpp
! src/hotspot/share/runtime/vmThread.cpp
! src/hotspot/share/services/threadService.cpp
! test/hotspot/gtest/oops/test_markWord.cpp
! test/hotspot/jtreg/runtime/logging/SafepointCleanupTest.java