[TCP]: Move FRTO checks out from write queue abstraction funcs

Better place exists in update_send_head (other non-queue related
adjustments are done there as well) which is the only caller of
tcp_advance_send_head (now that the bogus call from mtu_probe is
gone).

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 030fc69ea217..546f385a405f 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -80,6 +80,10 @@ static void update_send_head(struct sock *sk, struct sk_buff *skb)
         tcp_advance_send_head(sk, skb);
         tp->snd_nxt = TCP_SKB_CB(skb)->end_seq;
         tcp_packets_out_inc(sk, skb);
+
+        /* Don't override Nagle indefinately with F-RTO */
+        if (tp->frto_counter == 2)
+                tp->frto_counter = 3;
 }
 
 /* SND.NXT, if window was not shrunk.