PK_ADVLOCK
const bool noadvlock = (l->l_proc->p_flag & PK_ADVLOCK) == 0;
if (__predict_false((p->p_flag & PK_ADVLOCK) != 0) &&
PK_ADVLOCK, P_ADVLOCK,
if ((p->p_flag & PK_ADVLOCK) == 0) {
p->p_flag |= PK_ADVLOCK;
if ((p->p_flag & PK_ADVLOCK) == 0) {
p->p_flag |= PK_ADVLOCK;