tcp: don't clear retransmit_skb_hint when not necessary

[safe/jmp/linux-2.6] / net / ipv4 / tcp_input.c

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index d017aed..44a4fff 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2925,7 +2925,9 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets)
 
                tcp_unlink_write_queue(skb, sk);
                sk_wmem_free_skb(sk, skb);
-               tcp_clear_all_retrans_hints(tp);
+               tcp_clear_retrans_hints_partial(tp);
+               if (skb == tp->retransmit_skb_hint)
+                       tp->retransmit_skb_hint = NULL;
        }
 
        if (skb && (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED))