2 files changed, 10 insertions, 4 deletions

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 227cba79fa6b..eeaac399420d 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1945,8 +1945,9 @@ void tcp_enter_loss(struct sock *sk, int how)
                 if (skb == tcp_send_head(sk))
                         break;
 
-                if (TCP_SKB_CB(skb)->sacked & TCPCB_RETRANS)
+                if (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_RETRANS)
                         tp->undo_marker = 0;
+
                 TCP_SKB_CB(skb)->sacked &= (~TCPCB_TAGBITS)|TCPCB_SACKED_ACKED;
                 if (!(TCP_SKB_CB(skb)->sacked&TCPCB_SACKED_ACKED) || how) {
                         TCP_SKB_CB(skb)->sacked &= ~TCPCB_SACKED_ACKED;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index d718482fd11c..f0eb4e337ec8 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2337,6 +2337,7 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
         struct tcp_sock *tp = tcp_sk(sk);
         struct inet_connection_sock *icsk = inet_csk(sk);
         unsigned int cur_mss;
+        int err;
 
         /* Inconslusive MTU probe */
         if (icsk->icsk_mtup.probe_size) {
@@ -2400,11 +2401,15 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
                      skb_headroom(skb) >= 0xFFFF)) {
                 struct sk_buff *nskb = __pskb_copy(skb, MAX_TCP_HEADER,
                                                    GFP_ATOMIC);
-                return nskb ? tcp_transmit_skb(sk, nskb, 0, GFP_ATOMIC) :
-                              -ENOBUFS;
+                err = nskb ? tcp_transmit_skb(sk, nskb, 0, GFP_ATOMIC) :
+                             -ENOBUFS;
         } else {
-                return tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
+                err = tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
         }
+
+        if (likely(!err))
+                TCP_SKB_CB(skb)->sacked |= TCPCB_EVER_RETRANS;
+        return err;
 }
 
 int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)