Am I crazy?

gistfile1.c

static uint32_t
_mh(put_slot_x)(struct _mh(t) *h, mh_key_t key)
{
	uint32_t inc, k, i, p = h->n_buckets, j = 0;
	k = mh_hash(key);
	i = k % h->n_buckets;
	inc = 1 + k % (h->n_buckets - 1);
	for (;;) {
		if (mh_exist(h, i)) {
			if (mh_eq(h->p[i].key, key))
				return i;
			if (p == h->n_buckets)
				mh_setdirty(h, i);
		} else {
			p = i;
			goto fast_loop;
		}
		i += inc;
		if (i >= h->n_buckets)
			i -= h->n_buckets;
		j++;
	}

	for (;;) {
		if (mh_exist(h, i)) {
			if (mh_eq(h->p[i].key, key))
				return i;
		} else {
		fast_loop:
			if (!mh_dirty(h, i))
				return p;
		}
		i += inc;
		if (i >= h->n_buckets)
			i -= h->n_buckets;
		j++;
	}
}