ISHOLD
if (!(ISHOLD(p)) && !(p->p_flag & (SHOLDFORK1 | SHOLDWATCH))) {
#define MUSTRETURN(p, t) (ISHOLD(p) | (t)->t_activefd.a_stale)
if (ISHOLD(p))
if (ISHOLD(p))
if (ISHOLD(p) || (t->t_proc_flag & TP_EXITLWP))
if (ISHOLD(p) || (t->t_proc_flag & TP_EXITLWP))
if (ISHOLD(p))