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[TCP]: Remove TCPCB_URG & TCPCB_AT_TAIL as unnecessary

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The snd_up check should be enough. I suspect this has been
there to provide a minor optimization in clean_rtx_queue which
used to have a small if (!->sacked) block which could skip
snd_up check among the other work.

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 2007-12-31 04:50:19 -08:00 • committed by David S. Miller
parent cadbd0313b
commit 4828e7f49a
4 changed files with 4 additions and 11 deletions
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3
net/ipv4/tcp_input.c
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@ -2821,8 +2821,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets)
if (sacked & TCPCB_LOST)
tp->lost_out -= acked_pcount;
if (unlikely((sacked & TCPCB_URG) && tp->urg_mode &&
!before(end_seq, tp->snd_up)))
if (unlikely(tp->urg_mode && !before(end_seq, tp->snd_up)))
tp->urg_mode = 0;
tp->packets_out -= acked_pcount;