debug code

net/ipv4/tcp_output.c

@@ -2960,7 +2960,33 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs)
 
 	if (tp->undo_retrans < 0)
 		tp->undo_retrans = 0;
+//#if defined(CONFIG_XEN_SME) && defined(CONFIG_PACER_TCP)
+//  if (lnk_tx_adjust_urg) {
+//    if (ntohs(inet_sk(sk)->inet_sport) == 443 ||
+//        ntohs(inet_sk(sk)->inet_dport) == 443) {
+//      tp->undo_retrans += 1;
+//    } else {
+//      tp->undo_retrans += tcp_skb_pcount(skb);
+//    }
+//    if (skb == NULL) {
+//      printk(KERN_ERR "(%d:%.16s,core:%d) %s:%d [%pI4 %u, %pI4 %u]\n"
+//          "snd_nxt %u snd_una %u snd_cwnd %d pkts %d lost %d retrans %d sack %d"
+//          " CA %d pending %d\n"
+//          , task_pid_nr(current), current->comm,  smp_processor_id()
+//          , __func__, __LINE__
+//          , (void *) &inet_sk(sk)->inet_saddr, ntohs(inet_sk(sk)->inet_sport)
+//          , (void *) &inet_sk(sk)->inet_daddr, ntohs(inet_sk(sk)->inet_dport)
+//          , tp->snd_nxt, tp->snd_una, tp->snd_cwnd, tp->packets_out
+//          , tp->lost_out, tp->retrans_out, tp->sacked_out
+//          , inet_csk(sk)->icsk_ca_state, inet_csk(sk)->icsk_pending
+//          );
+//    }
+//  } else {
+//    tp->undo_retrans += tcp_skb_pcount(skb);
+//  }
+//#else
 	tp->undo_retrans += tcp_skb_pcount(skb);
+//#endif
 	return err;
 }