freep              22 user/umalloc.c static Header *freep;
freep              30 user/umalloc.c   for (p = freep; !(bp > p && bp < p->s.ptr); p = p->s.ptr)
freep              43 user/umalloc.c   freep = p;
freep              60 user/umalloc.c   return freep;
freep              70 user/umalloc.c   if ((prevp = freep) == 0) {
freep              71 user/umalloc.c     base.s.ptr = freep = prevp = &base;
freep              83 user/umalloc.c       freep = prevp;
freep              86 user/umalloc.c     if (p == freep)