IGNORE_PREFERENCE
force_preference(IGNORE_PREFERENCE);
int max = (int)IGNORE_PREFERENCE;
if (max != IGNORE_PREFERENCE) {
if (max != IGNORE_PREFERENCE) {
tp->preference != IGNORE_PREFERENCE) {
if (tp->preference == IGNORE_PREFERENCE && tp->in_kernel) {
if (new_max != IGNORE_PREFERENCE) {