- Update to 3.4-rc6.

[linux-flexiantxendom0-3.2.10.git] / net / ipv4 / tcp_input.c

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 3ff3640..257b617 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -85,7 +85,7 @@ int sysctl_tcp_ecn __read_mostly = 2;
 EXPORT_SYMBOL(sysctl_tcp_ecn);
 int sysctl_tcp_dsack __read_mostly = 1;
 int sysctl_tcp_app_win __read_mostly = 31;
-int sysctl_tcp_adv_win_scale __read_mostly = 2;
+int sysctl_tcp_adv_win_scale __read_mostly = 1;
 EXPORT_SYMBOL(sysctl_tcp_adv_win_scale);
 
 int sysctl_tcp_stdurg __read_mostly;
@@ -495,7 +495,7 @@ static inline void tcp_rcv_rtt_measure(struct tcp_sock *tp)
                goto new_measure;
        if (before(tp->rcv_nxt, tp->rcv_rtt_est.seq))
                return;
-       tcp_rcv_rtt_update(tp, jiffies - tp->rcv_rtt_est.time, 1);
+       tcp_rcv_rtt_update(tp, tcp_time_stamp - tp->rcv_rtt_est.time, 1);
 
 new_measure:
        tp->rcv_rtt_est.seq = tp->rcv_nxt + tp->rcv_wnd;
@@ -2868,11 +2868,14 @@ static inline void tcp_complete_cwr(struct sock *sk)
 
        /* Do not moderate cwnd if it's already undone in cwr or recovery. */
        if (tp->undo_marker) {
-               if (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR)
+               if (inet_csk(sk)->icsk_ca_state == TCP_CA_CWR) {
                        tp->snd_cwnd = min(tp->snd_cwnd, tp->snd_ssthresh);
-               else /* PRR */
+                       tp->snd_cwnd_stamp = tcp_time_stamp;
+               } else if (tp->snd_ssthresh < TCP_INFINITE_SSTHRESH) {
+                       /* PRR algorithm. */
                        tp->snd_cwnd = tp->snd_ssthresh;
-               tp->snd_cwnd_stamp = tcp_time_stamp;
+                       tp->snd_cwnd_stamp = tcp_time_stamp;
+               }
        }
        tcp_ca_event(sk, CA_EVENT_COMPLETE_CWR);
 }