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Commit 62ad2761 authored Feb 28, 2009 by Ilpo Järvinen Committed by David S. Miller Mar 02, 2009

tcp: deferring in middle of queue makes very little sense



If skb can be sent right away, we certainly should do that
if it's in the middle of the queue because it won't get
more data into it.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 59a08cba

net/ipv4/tcp_output.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1356,6 +1356,10 @@ static int tcp_tso_should_defer(struct sock sk, struct sk_buff skb)
		if (limit >= sk->sk_gso_max_size)
		goto send_now;

		/* Middle in queue won't get any more data, full sendable already? */
		if ((skb != tcp_write_queue_tail(sk)) && (limit >= skb->len))
		goto send_now;

		if (sysctl_tcp_tso_win_divisor) {
		u32 chunk = min(tp->snd_wnd, tp->snd_cwnd * tp->mss_cache);