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[TCP]: Do not call tcp_tso_acked() if no work to do.
author
David S. Miller
<davem@davemloft.net>
Tue, 5 Jul 2005 22:20:55 +0000
(15:20 -0700)
committer
David S. Miller
<davem@davemloft.net>
Tue, 5 Jul 2005 22:20:55 +0000
(15:20 -0700)
In tcp_clean_rtx_queue(), if the TSO packet is not even partially
acked, do not waste time calling tcp_tso_acked().
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_input.c
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diff --git
a/net/ipv4/tcp_input.c
b/net/ipv4/tcp_input.c
index 1dba7fd438daf0369b88a8f74ad498cf7052bc42..b948e4eb39b78096f21e7717b6bf8e54758f150e 100644
(file)
--- a/
net/ipv4/tcp_input.c
+++ b/
net/ipv4/tcp_input.c
@@
-2038,7
+2038,8
@@
static int tcp_clean_rtx_queue(struct sock *sk, __s32 *seq_rtt_p, s32 *seq_usrtt
* the other end.
*/
if (after(scb->end_seq, tp->snd_una)) {
- if (tcp_skb_pcount(skb) > 1)
+ if (tcp_skb_pcount(skb) > 1 &&
+ after(tp->snd_una, scb->seq))
acked |= tcp_tso_acked(sk, skb,
now, &seq_rtt);
break;