hg: hsx/hsx24/hotspot: 7127792: Add the ability to change an existing PeriodicTask's execution interval

[rickard.backman at oracle.com]

Changeset: c2068b6bcf87
Author:    rbackman
Date:      2012-10-04 14:55 +0200
URL:       http://hg.openjdk.java.net/hsx/hsx24/hotspot/rev/c2068b6bcf87

7127792: Add the ability to change an existing PeriodicTask's execution interval
Summary: Enables dynamic enrollment / disenrollment from the PeriodicTasks in WatcherThread.
Reviewed-by: dholmes, mgronlun

! src/share/vm/runtime/mutexLocker.cpp
! src/share/vm/runtime/mutexLocker.hpp
! src/share/vm/runtime/task.cpp
! src/share/vm/runtime/task.hpp
! src/share/vm/runtime/thread.cpp
! src/share/vm/runtime/thread.hpp