Function vm_reserv_level_iffullpop

freebsd/vm/vm_reserv.c:1156–1163

* Returns a reservation level if the given page belongs to a fully populated * reservation and -1 otherwise. */

 * reservation and -1 otherwise.
 */
int
vm_reserv_level_iffullpop(vm_page_t m)
{
	vm_reserv_t rv;

	rv = vm_reserv_from_page(m);
	return (rv->popcnt == VM_LEVEL_0_NPAGES ? 0 : -1);
}

/*
 * Remove a partially populated reservation from the queue.