From fbd52eb2bd17bd3468974aa2fdce140f0cd32fc7 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ilpo=20J=E4rvinen?= <ilpo.jarvinen@helsinki.fi>
Date: Sat, 10 Nov 2007 21:24:19 -0800
Subject: [PATCH] [TCP]: Split SACK FRTO flag clearing (fixes FRTO corner case
 bug)
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In case we run out of mem when fragmenting, the clearing of
FLAG_ONLY_ORIG_SACKED might get missed which then feeds FRTO
with false information. Move clearing outside skb processing
loop so that it will get executed even if the skb loop
terminates prematurely due to out-of-mem.

Besides, now the core of the loop truly deals with a single
skb only, which also enables creation a more self-contained
of tcp_sacktag_one later on.

In addition, small reorganization of if branches was made.

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