Function cache_trylock_vnodes

freebsd/kern/vfs_cache.c:838–855

}

static int
cache_trylock_vnodes(struct mtx *vlp1, struct mtx *vlp2)
{

	cache_sort_vnodes(&vlp1, &vlp2);

	if (vlp1 != NULL) {
		if (!mtx_trylock(vlp1))
			return (EAGAIN);
	}
	if (!mtx_trylock(vlp2)) {
		if (vlp1 != NULL)
			mtx_unlock(vlp1);
		return (EAGAIN);
	}

	return (0);
}

static void
cache_lock_vnodes(struct mtx *vlp1, struct mtx *vlp2)