From: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Date: Mon, 8 Oct 2007 06:36:41 +0000 (-0700)
Subject: [TCP]: Fix two off-by-one errors in fackets_out adjusting logic
X-Git-Tag: v2.6.24-rc1~1454^2~148
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=29d0a309d11bac9e57af914d0d6a35cde0080861;p=pandora-kernel.git

[TCP]: Fix two off-by-one errors in fackets_out adjusting logic

1) Passing wrong skb to tcp_adjust_fackets_out could corrupt
fastpath_cnt_hint as tcp_skb_pcount(next_skb) is not included
to it if hint points exactly to the next_skb (it's lagging
behind, see sacktag).

2) When fastpath_skb_hint is put backwards to avoid dangling
skb reference, the skb's pcount must also be removed from count
(not included like above).

Reported by Cedric Le Goater <legoater@free.fr>

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