vm_map_lookup
result = vm_map_lookup(&fs.map, vaddr, fault_type,
result = vm_map_lookup(&fs.map, vaddr,
result = vm_map_lookup(&fs.map, vaddr, fault_type,
result = vm_map_lookup(&fs.map, vaddr,
int vm_map_lookup (vm_map_t *, vm_offset_t, vm_prot_t,