[TCP]: Rename update_send_head & include related increment to it
There's very little need to have the packets_out incrementing in
a separate function. Also name the combined function
appropriately.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 7a4834a..1ca638b 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -61,29 +61,22 @@
/* By default, RFC2861 behavior. */
int sysctl_tcp_slow_start_after_idle __read_mostly = 1;
-static inline void tcp_packets_out_inc(struct sock *sk,
- const struct sk_buff *skb)
+static void tcp_event_new_data_sent(struct sock *sk, struct sk_buff *skb)
{
struct tcp_sock *tp = tcp_sk(sk);
- int orig = tp->packets_out;
-
- tp->packets_out += tcp_skb_pcount(skb);
- if (!orig)
- inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
- inet_csk(sk)->icsk_rto, TCP_RTO_MAX);
-}
-
-static void update_send_head(struct sock *sk, struct sk_buff *skb)
-{
- struct tcp_sock *tp = tcp_sk(sk);
+ unsigned int prior_packets = tp->packets_out;
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;
+
+ tp->packets_out += tcp_skb_pcount(skb);
+ if (!prior_packets)
+ inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
+ inet_csk(sk)->icsk_rto, TCP_RTO_MAX);
}
/* SND.NXT, if window was not shrunk.
@@ -1410,7 +1403,7 @@
/* Decrement cwnd here because we are sending
* effectively two packets. */
tp->snd_cwnd--;
- update_send_head(sk, nskb);
+ tcp_event_new_data_sent(sk, nskb);
icsk->icsk_mtup.probe_size = tcp_mss_to_mtu(sk, nskb->len);
tp->mtu_probe.probe_seq_start = TCP_SKB_CB(nskb)->seq;
@@ -1494,7 +1487,7 @@
/* Advance the send_head. This one is sent out.
* This call will increment packets_out.
*/
- update_send_head(sk, skb);
+ tcp_event_new_data_sent(sk, skb);
tcp_minshall_update(tp, mss_now, skb);
sent_pkts++;
@@ -1553,7 +1546,7 @@
TCP_SKB_CB(skb)->when = tcp_time_stamp;
if (likely(!tcp_transmit_skb(sk, skb, 1, sk->sk_allocation))) {
- update_send_head(sk, skb);
+ tcp_event_new_data_sent(sk, skb);
tcp_cwnd_validate(sk);
return;
}
@@ -2528,9 +2521,8 @@
TCP_SKB_CB(skb)->flags |= TCPCB_FLAG_PSH;
TCP_SKB_CB(skb)->when = tcp_time_stamp;
err = tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
- if (!err) {
- update_send_head(sk, skb);
- }
+ if (!err)
+ tcp_event_new_data_sent(sk, skb);
return err;
} else {
if (tp->urg_mode &&