K 10 svn:author V 3 alc K 8 svn:date V 27 2004-07-27T03:53:41.000000Z K 7 svn:log V 320 - Use atomic ops for updating the vmspace's refcnt and exitingcnt. - Push down Giant into shmexit(). (Giant is acquired only if the vmspace contains shm segments.) - Eliminate the acquisition of Giant from proc_rwmem(). - Reduce the scope of Giant in exit1(), uncovering the destruction of the address space. END