diff options
| author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | 2007-12-31 04:43:57 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:00:21 -0800 |
| commit | 66f5fe624fa5f1d4574d2dd2bc0c72a17a92079c (patch) | |
| tree | b869d6f061b10d0a1a7b5de87583f2400ae667f0 /net/ipv4/tcp_output.c | |
| parent | 3ccd3130b3f681a4aef6392327256786b3b6aa04 (diff) | |
| download | lwn-66f5fe624fa5f1d4574d2dd2bc0c72a17a92079c.tar.gz lwn-66f5fe624fa5f1d4574d2dd2bc0c72a17a92079c.zip | |
[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>
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 7a4834a2ae84..1ca638b83168 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -61,29 +61,22 @@ int sysctl_tcp_base_mss __read_mostly = 512; /* 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) -{ - 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) +static void tcp_event_new_data_sent(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 @@ static int tcp_mtu_probe(struct sock *sk) /* 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 @@ static int tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle) /* 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 @@ void tcp_push_one(struct sock *sk, unsigned int mss_now) 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 @@ int tcp_write_wakeup(struct sock *sk) 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 && |