From: David S. Miller <davem@davemloft.net>
Date: Tue, 5 Jul 2005 22:17:45 +0000 (-0700)
Subject: [TCP]: Fix quick-ack decrementing with TSO.
X-Git-Tag: v2.6.13-rc2~6^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc6415bcb0f58f03adb910e56d7e1df6368794e0;p=pandora-kernel.git

[TCP]: Fix quick-ack decrementing with TSO.

On each packet output, we call tcp_dec_quickack_mode()
if the ACK flag is set.  It drops tp->ack.quick until
it hits zero, at which time we deflate the ATO value.

When doing TSO, we are emitting multiple packets with
ACK set, so we should decrement tp->ack.quick that many
segments.

Note that, unlike this case, tcp_enter_cwr() should not
take the tcp_skb_pcount(skb) into consideration.  That
function, one time, readjusts tp->snd_cwnd and moves
into TCP_CA_CWR state.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

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