Function vm_page_enqueue

freebsd/vm/vm_page.c:3714–3728

* Schedule the given page for insertion into the specified page queue. * Physical insertion of the page may be deferred indefinitely. */

 * Physical insertion of the page may be deferred indefinitely.
 */
static void
vm_page_enqueue(vm_page_t m, uint8_t queue)
{

	KASSERT(m->a.queue == PQ_NONE &&
	    (m->a.flags & PGA_QUEUE_STATE_MASK) == 0,
	    ("%s: page %p is already enqueued", __func__, m));
	KASSERT(m->ref_count > 0,
	    ("%s: page %p does not carry any references", __func__, m));

	m->a.queue = queue;
	if ((m->a.flags & PGA_REQUEUE) == 0)
		vm_page_aflag_set(m, PGA_REQUEUE);
	vm_page_pqbatch_submit(m, queue);
}

/*
 *	vm_page_free_prep: