TF_DELACK
if (tp->t_flags & TF_DELACK ||
if (tp->t_flags & TF_DELACK)
if (tp->t_flags & TF_DELACK)
if ((tp->t_flags & (TF_DEAD | TF_DELACK)) != TF_DELACK) {
if (((tp)->t_flags & TF_DELACK) == 0) { \
(tp)->t_flags |= TF_DELACK; \
if ((tp)->t_flags & TF_DELACK) { \
(tp)->t_flags &= ~TF_DELACK; \