AcoSail/kernel_optimize_test
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tcp: no need to pass prev skb around, reduces arg pressure

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Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ilpo Järvinen 2008-12-05 22:42:41 -08:00 committed by David S. Miller
parent a1197f5a6f
commit 50133161a8
1 changed files with 4 additions and 5 deletions
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9
net/ipv4/tcp_input.c
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@ -1376,12 +1376,12 @@ static u8 tcp_sacktag_one(struct sk_buff *skb, struct sock *sk,
return sacked;
}
static int tcp_shifted_skb(struct sock *sk, struct sk_buff *prev,
struct sk_buff *skb,
static int tcp_shifted_skb(struct sock *sk, struct sk_buff *skb,
struct tcp_sacktag_state *state,
unsigned int pcount, int shifted, int mss)
{
struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *prev = tcp_write_queue_prev(sk, skb);
BUG_ON(!pcount);
@ -1565,7 +1565,7 @@ static struct sk_buff *tcp_shift_skb_data(struct sock *sk, struct sk_buff *skb,
if (!skb_shift(prev, skb, len))
goto fallback;
if (!tcp_shifted_skb(sk, prev, skb, state, pcount, len, mss))
if (!tcp_shifted_skb(sk, skb, state, pcount, len, mss))
goto out;
/* Hole filled allows collapsing with the next as well, this is very
@ -1584,8 +1584,7 @@ static struct sk_buff *tcp_shift_skb_data(struct sock *sk, struct sk_buff *skb,
len = skb->len;
if (skb_shift(prev, skb, len)) {
pcount += tcp_skb_pcount(skb);
tcp_shifted_skb(sk, prev, skb, state, tcp_skb_pcount(skb), len,
mss);
tcp_shifted_skb(sk, skb, state, tcp_skb_pcount(skb), len, mss);
}
out: