[TCP]: Extend reordering detection to cover CA_Loss partially

[powerpc.git] / net / ipv4 / tcp_input.c

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 901240f..26713e5 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1511,7 +1511,8 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
 
        tcp_verify_left_out(tp);
 
-       if ((reord < tp->fackets_out) && icsk->icsk_ca_state != TCP_CA_Loss &&
+       if ((reord < tp->fackets_out) &&
+           ((icsk->icsk_ca_state != TCP_CA_Loss) || tp->undo_marker) &&
            (!tp->frto_highmark || after(tp->snd_una, tp->frto_highmark)))
                tcp_update_reordering(sk, tp->fackets_out - reord, 0);