Macros starting with `m' in osfmk/vm

• memory_object_should_return_page osfmk/vm/memory_object.c:536
• msr_lock osfmk/vm/vm_object.h:272
• msr_unlock osfmk/vm/vm_object.h:273
• msync_req_alloc osfmk/vm/vm_object.h:262
• msync_req_free osfmk/vm/vm_object.h:269