git: openjdk/loom: fibers: fixed deadlock issue in the JVMTI VTMT disabling mechanism

[duke]

Changeset: 2093d26d
Author:    Serguei Spitsyn <serguei.spitsyn at oracle.com>
Date:      2020-10-08 10:01:26 +0000
URL:       https://git.openjdk.java.net/loom/commit/2093d26d

fixed deadlock issue in the JVMTI VTMT disabling mechanism

! src/hotspot/share/prims/jvmtiThreadState.cpp
! src/hotspot/share/runtime/thread.cpp
! src/hotspot/share/runtime/thread.hpp
! test/hotspot/jtreg/serviceability/jvmti/vthread/VThreadTest/libVThreadTest.c