[TCP]: Remove superflushious skb == write_queue_tail() check

[linux-2.6-omap-h63xx.git] / net / ipv4 / tcp_output.c

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index d29ef79c00caf442e48562de2476e2377b6cb6ca..debf235816067cc8a268b015c9adbae851a538a1 100644 (file)
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -998,7 +998,7 @@ unsigned int tcp_current_mss(struct sock *sk, int large_allowed)
        xmit_size_goal = mss_now;
 
        if (doing_tso) {
-               xmit_size_goal = (65535 -
+               xmit_size_goal = ((sk->sk_gso_max_size - 1) -
                                  inet_csk(sk)->icsk_af_ops->net_header_len -
                                  inet_csk(sk)->icsk_ext_hdr_len -
                                  tp->tcp_header_len);
@@ -1057,7 +1057,7 @@ static unsigned int tcp_mss_split_point(struct sock *sk, struct sk_buff *skb,
 
        needed = min(skb->len, window);
 
-       if (skb == tcp_write_queue_tail(sk) && cwnd_len <= needed)
+       if (cwnd_len <= needed)
                return cwnd_len;
 
        return needed - needed % mss_now;
@@ -1282,7 +1282,7 @@ static int tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb)
        limit = min(send_win, cong_win);
 
        /* If a full-sized TSO skb can be sent, do it. */
-       if (limit >= 65536)
+       if (limit >= sk->sk_gso_max_size)
                goto send_now;
 
        if (sysctl_tcp_tso_win_divisor) {
@@ -2236,7 +2236,11 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
 
        /* RFC1323: The window in SYN & SYN/ACK segments is never scaled. */
        th->window = htons(min(req->rcv_wnd, 65535U));
-
+#ifdef CONFIG_SYN_COOKIES
+       if (unlikely(req->cookie_ts))
+               TCP_SKB_CB(skb)->when = cookie_init_timestamp(req);
+       else
+#endif
        TCP_SKB_CB(skb)->when = tcp_time_stamp;
        tcp_syn_build_options((__be32 *)(th + 1), dst_metric(dst, RTAX_ADVMSS), ireq->tstamp_ok,
                              ireq->sack_ok, ireq->wscale_ok, ireq->rcv_wscale,
@@ -2571,6 +2575,7 @@ void tcp_send_probe0(struct sock *sk)
        }
 }
 
+EXPORT_SYMBOL(tcp_select_initial_window);
 EXPORT_SYMBOL(tcp_connect);
 EXPORT_SYMBOL(tcp_make_synack);
 EXPORT_SYMBOL(tcp_simple_retransmit);