vm_fault_might_be_cow
KASSERT(vm_fault_might_be_cow(fs),
if (vm_fault_might_be_cow(fs)) {
if (vm_fault_might_be_cow(fs)) {
(vm_fault_is_read(fs) || vm_fault_might_be_cow(fs)) &&
vm_fault_might_be_cow(fs)))) {
if (vm_fault_might_be_cow(&fs)) {
if (vm_fault_might_be_cow(fs)) {