LOCK_CLASS_MAX
if (LO_CLASSINDEX(lock) > LOCK_CLASS_MAX) {
CTASSERT(LOCK_CLASS_MAX == 15);
struct lock_class *lock_classes[LOCK_CLASS_MAX + 1] = {
for (i = 0; i < LOCK_CLASS_MAX; i++)
KASSERT(i < LOCK_CLASS_MAX, ("unknown lock class %p", class));