i#1306 Dr. Heapstat -replace_malloc, part 2:
i#1306 Dr. Heapstat -replace_malloc, part 2:

For alloc_ops.global_lock, use an actual global lock and not a per-arena lock

SVN-Revision: 1482

LohithBlaze/drmemory,code4bones/drmemory,sigma-random/drmemory,sigma-random/drmemory,LohithBlaze/drmemory,sigma-random/drmemory,LohithBlaze/drmemory,code4bones/drmemory,LohithBlaze/drmemory,sigma-random/drmemory,code4bones/drmemory,sigma-random/drmemory,LohithBlaze/drmemory,code4bones/drmemory,code4bones/drmemory