Function pmap_is_referenced

freebsd/arm64/arm64/pmap.c:5394–5401

* pmap_is_referenced: * * Return whether or not the specified physical page was referenced * in any physical maps. */

 *	in any physical maps.
 */
boolean_t
pmap_is_referenced(vm_page_t m)
{

	KASSERT((m->oflags & VPO_UNMANAGED) == 0,
	    ("pmap_is_referenced: page %p is not managed", m));
	return (pmap_page_test_mappings(m, TRUE, FALSE));
}

/*
 * Clear the write and modified bits in each of the given page's mappings.