TCP & hints

Hi Stephen,

Do you still remember what this is for (got added along with other TCP 
hint stuff)? What kind of problem you saw back then (or who saw
problems)?

@@ -1605,6 +1711,10 @@ static void tcp_undo_cwr(struct sock *sk, const int 

undo)
        }
        tcp_moderate_cwnd(tp);
        tp->snd_cwnd_stamp = tcp_time_stamp;
+
+       /* There is something screwy going on with the retrans hints after
+          an undo */
+       clear_all_retrans_hints(tp);
 }
 
 static inline int tcp_may_undo(struct tcp_sock *tp)


-- 
 i.