hg: jdk9/sandbox/hotspot: Bugfix for LogLevel. Add lock for log configuration.

[marcus.larsson at oracle.com]

Changeset: 51f174dbf171
Author:    mlarsson
Date:      2015-06-18 14:45 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/hotspot/rev/51f174dbf171

Bugfix for LogLevel. Add lock for log configuration.

! src/share/vm/logging/log.hpp
! src/share/vm/logging/logConfiguration.cpp
! src/share/vm/logging/logConfiguration.hpp
! src/share/vm/logging/logLevel.hpp
! src/share/vm/logging/logOutput.hpp
! src/share/vm/logging/logPrefix.hpp
! src/share/vm/runtime/mutexLocker.cpp
! src/share/vm/runtime/mutexLocker.hpp