hg: jdk/jdk: 8160539: Stack frame scanning acquires DerivedPointerTableGC_lock mutex

[kim.barrett at oracle.com]

Changeset: 7136c9ac56a7
Author:    kbarrett
Date:      2019-05-16 20:14 -0400
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/7136c9ac56a7

8160539: Stack frame scanning acquires DerivedPointerTableGC_lock mutex
Summary: Use lock-free stack for accumulating table entries.
Reviewed-by: tschatzl, kvn

! src/hotspot/share/compiler/oopMap.cpp
! src/hotspot/share/compiler/oopMap.hpp
! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/runtime/mutexLocker.hpp