Merge tag 'asoc-fix-v4.5-rc4' into asoc-qcom

[linux-2.6-microblaze.git] / net / ipv4 / tcp_input.c

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 0003d40..1c2a734 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2164,8 +2164,7 @@ static void tcp_mark_head_lost(struct sock *sk, int packets, int mark_head)
 {
        struct tcp_sock *tp = tcp_sk(sk);
        struct sk_buff *skb;
-       int cnt, oldcnt;
-       int err;
+       int cnt, oldcnt, lost;
        unsigned int mss;
        /* Use SACK to deduce losses of new sequences sent during recovery */
        const u32 loss_high = tcp_is_sack(tp) ?  tp->snd_nxt : tp->high_seq;
@@ -2205,9 +2204,10 @@ static void tcp_mark_head_lost(struct sock *sk, int packets, int mark_head)
                                break;
 
                        mss = tcp_skb_mss(skb);
-                       err = tcp_fragment(sk, skb, (packets - oldcnt) * mss,
-                                          mss, GFP_ATOMIC);
-                       if (err < 0)
+                       /* If needed, chop off the prefix to mark as lost. */
+                       lost = (packets - oldcnt) * mss;
+                       if (lost < skb->len &&
+                           tcp_fragment(sk, skb, lost, mss, GFP_ATOMIC) < 0)
                                break;
                        cnt = packets;
                }
@@ -2366,8 +2366,6 @@ static void tcp_undo_cwnd_reduction(struct sock *sk, bool unmark_loss)
                        tp->snd_ssthresh = tp->prior_ssthresh;
                        tcp_ecn_withdraw_cwr(tp);
                }
-       } else {
-               tp->snd_cwnd = max(tp->snd_cwnd, tp->snd_ssthresh);
        }
        tp->snd_cwnd_stamp = tcp_time_stamp;
        tp->undo_marker = 0;