Function vm_page_invalid

freebsd/vm/vm_page.c:5253–5265

* vm_page_invalid: * * Invalidates the entire page. The page must be busy, unmapped, and * the enclosing object must be locked. The object locks protects * against concurrent read-only pmap enter which is done without * busy. */

 *	busy.
 */
void
vm_page_invalid(vm_page_t m)
{

	vm_page_assert_busied(m);
	VM_OBJECT_ASSERT_LOCKED(m->object);
	MPASS(!pmap_page_is_mapped(m));

	if (vm_page_xbusied(m))
		m->valid = 0;
	else
		vm_page_bits_clear(m, &m->valid, VM_PAGE_BITS_ALL);
}

/*
 * vm_page_zero_invalid()