UMA_HASH_SIZE_INIT
if (size > UMA_HASH_SIZE_INIT) {
alloc = sizeof(hash->uh_slab_hash[0]) * UMA_HASH_SIZE_INIT;
hash->uh_hashsize = UMA_HASH_SIZE_INIT;
if (hash->uh_hashsize == UMA_HASH_SIZE_INIT)
sizeof(struct slabhead *) * UMA_HASH_SIZE_INIT,