diff options
| author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | 2007-08-09 14:33:18 +0300 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:47:55 -0700 |
| commit | b5860bbac7be1381626f3dc8a0cb970a60fcefb4 (patch) | |
| tree | 53034429084f92fdb55c062498e1f4255be9bd4a /net/ipv4/tcp_output.c | |
| parent | 35e8694198ba94b62df8aa35fa6e52a1cfb86df2 (diff) | |
| download | blackbird-op-linux-b5860bbac7be1381626f3dc8a0cb970a60fcefb4.tar.gz blackbird-op-linux-b5860bbac7be1381626f3dc8a0cb970a60fcefb4.zip | |
[TCP]: Tighten tcp_sock's belt, drop left_out
It is easily calculable when needed and user are not that many
after all.
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 | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 3c8c8e7f6f6d..7434944caa8f 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -732,10 +732,8 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss if (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_RETRANS) tp->retrans_out -= diff; - if (TCP_SKB_CB(skb)->sacked & TCPCB_LOST) { + if (TCP_SKB_CB(skb)->sacked & TCPCB_LOST) tp->lost_out -= diff; - tp->left_out -= diff; - } if (diff > 0) { /* Adjust Reno SACK estimate. */ @@ -1727,15 +1725,11 @@ static void tcp_retrans_try_collapse(struct sock *sk, struct sk_buff *skb, int m TCP_SKB_CB(skb)->sacked |= TCP_SKB_CB(next_skb)->sacked&(TCPCB_EVER_RETRANS|TCPCB_AT_TAIL); if (TCP_SKB_CB(next_skb)->sacked&TCPCB_SACKED_RETRANS) tp->retrans_out -= tcp_skb_pcount(next_skb); - if (TCP_SKB_CB(next_skb)->sacked&TCPCB_LOST) { + if (TCP_SKB_CB(next_skb)->sacked&TCPCB_LOST) tp->lost_out -= tcp_skb_pcount(next_skb); - tp->left_out -= tcp_skb_pcount(next_skb); - } /* Reno case is special. Sigh... */ - if (!tp->rx_opt.sack_ok && tp->sacked_out) { + if (!tp->rx_opt.sack_ok && tp->sacked_out) tcp_dec_pcount_approx(&tp->sacked_out, next_skb); - tp->left_out -= tcp_skb_pcount(next_skb); - } /* Not quite right: it can be > snd.fack, but * it is better to underestimate fackets. |
