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[TCP]: SACK fastpath did override adjusted fackets_out

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Do same adjustment to SACK fastpath counters provided that
they're valid.

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 2007-07-02 22:07:22 -07:00 committed by David S. Miller
parent 61cbc2fca6
commit d041005116
1 changed files with 8 additions and 0 deletions
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8
net/ipv4/tcp_output.c
View file

@ -699,6 +699,14 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss
tp->fackets_out -= diff;
if ((int)tp->fackets_out < 0)
tp->fackets_out = 0;
/* SACK fastpath might overwrite it unless dealt with */
if (tp->fastpath_skb_hint != NULL &&
after(TCP_SKB_CB(tp->fastpath_skb_hint)->seq,
TCP_SKB_CB(skb)->seq)) {
tp->fastpath_cnt_hint -= diff;
if ((int)tp->fastpath_cnt_hint < 0)
tp->fastpath_cnt_hint = 0;
}
}
}