hg: jdk/hs: 8194934: NMT: Remove MemTracker::get_virtual_memory_xxx_tracker(), create Tracker in place

[coleen.phillimore at oracle.com]

Changeset: 53427ddce0a0
Author:    zgu
Date:      2018-02-05 13:23 -0500
URL:       http://hg.openjdk.java.net/jdk/hs/rev/53427ddce0a0

8194934: NMT: Remove MemTracker::get_virtual_memory_xxx_tracker(), create Tracker in place
Summary: Create tracker in place to avoid additional locking
Reviewed-by: coleenp

! src/hotspot/os/bsd/os_bsd.cpp
! src/hotspot/os/linux/os_linux.cpp
! src/hotspot/os/windows/perfMemory_windows.cpp
! src/hotspot/share/runtime/os.cpp
! src/hotspot/share/services/memTracker.hpp