Function umtxq_getchain

freebsd/kern/kern_umtx.c:493–500

}

static inline struct umtxq_chain *
umtxq_getchain(struct umtx_key *key)
{

	if (key->type <= TYPE_SEM)
		return (&umtxq_chains[1][key->hash]);
	return (&umtxq_chains[0][key->hash]);
}

/*
 * Lock a chain.