inet_arena_t
inet_arena_t *arena = kmem_alloc(sizeof (inet_arena_t), kmflags);
kmem_free(arena, sizeof (inet_arena_t));
inet_arena_t *arena = (inet_arena_t *)a;
kmem_free(arena, sizeof (inet_arena_t));
return ((dev_t)vmem_alloc(((inet_arena_t *)arena)->ineta_arena,
vmem_free(((inet_arena_t *)arena)->ineta_arena, (void *)dev, 1);