Function turnstile_chain_lock

freebsd/kern/subr_turnstile.c:560–567

* Lock the turnstile chain associated with the specified lock. */

 * Lock the turnstile chain associated with the specified lock.
 */
void
turnstile_chain_lock(struct lock_object *lock)
{
	struct turnstile_chain *tc;

	tc = TC_LOOKUP(lock);
	mtx_lock_spin(&tc->tc_lock);
}

struct turnstile *
turnstile_trywait(struct lock_object *lock)