oops, the following change is actually from jason thorpe.  sorry,
jason.  :-(

.mrg.


   mrg
   Wed Feb  5 00:09:49 PST 1997
   Update of /cvsroot/src/sys/vm
   In directory netbsd1:/var/slash-tmp/cvs-serv26053
   
   Modified Files:
   	vm_extern.h vm_glue.c vm_object.c vm_object.h 
   Log Message:
   add thread_sleep_msg() that takes a wait message, and change thread_sleep()
   into a macro for backwards compat.  alter vm_object_sleep() to take advantage
   of this.