On Thu, Aug 04, 2005 at 01:33:29PM +1000, herbert wrote:
>
> So I suppose we should reset cwnd_quota after tcp_transmit_skb?
Please try this patch to see if this is really the problem or not.
Thanks,
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diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1027,19 +1027,14 @@ static int tcp_write_xmit(struct sock *s
tcp_minshall_update(tp, mss_now, skb);
sent_pkts++;
- /* Do not optimize this to use tso_segs. If we chopped up
- * the packet above, tso_segs will no longer be valid.
- */
- cwnd_quota -= tcp_skb_pcount(skb);
-
- BUG_ON(cwnd_quota < 0);
- if (!cwnd_quota)
- break;
-
skb = sk->sk_send_head;
if (!skb)
break;
+
tso_segs = tcp_init_tso_segs(sk, skb, mss_now);
+ cwnd_quota = tcp_cwnd_test(tp, skb);
+ if (!cwnd_quota)
+ break;
}
if (likely(sent_pkts)) {
