MAXDEVSW
KASSERT(sys_bdevsws < MAXDEVSW - 1);
KASSERT(sys_cdevsws < MAXDEVSW - 1);
if (*devmajor >= MAXDEVSW) {
newbdevswref = kmem_zalloc(MAXDEVSW * sizeof(newbdevswref[0]),
newbdevsw = kmem_zalloc(MAXDEVSW * sizeof(newbdevsw[0]),
atomic_store_release(&max_bdevsws, MAXDEVSW);
if (*devmajor >= MAXDEVSW) {
newcdevswref = kmem_zalloc(MAXDEVSW * sizeof(newcdevswref[0]),
newcdevsw = kmem_zalloc(MAXDEVSW * sizeof(newcdevsw[0]),
atomic_store_release(&max_cdevsws, MAXDEVSW);