PG_MAPPEDMULTI
while ((flags & PG_MAPPEDMULTI) == 0) {
vm_page_flag_clear(m, PG_MAPPED | PG_MAPPEDMULTI | PG_WRITEABLE
nflags |= PG_MAPPEDMULTI;
PG_MAPPEDMULTI |
if ((m->flags & PG_MAPPEDMULTI) == 0)