amap_copy
void amap_copy(vm_map_t, vm_map_entry_t, int, boolean_t, vaddr_t,
amap_copy(ufi->map, ufi->entry, M_NOWAIT,
amap_copy(map, iter, M_WAITOK,
amap_copy(old_map, old_entry, M_WAITOK, FALSE, 0, 0);
amap_copy(new_map, new_entry, M_WAITOK, FALSE,
amap_copy(srcmap, entry, M_NOWAIT,