Ilpo Järvinen e1cd8f78f8 [TCP] FRTO: Clear frto_highmark only after process_frto that uses it ...

I broke this in commit 3de96471bd:

	[TCP]: Wrap-safed reordering detection FRTO check

tcp_process_frto should always see a valid frto_highmark. An invalid
frto_highmark (zero) is very likely what ultimately caused a seqno
compare in tcp_frto_enter_loss to do the wrong leading to the LOST-bit
leak.

Having LOST-bits integry ensured like done after commit
23aeeec365:

	[TCP] FRTO: Plug potential LOST-bit leak

won't hurt. It may still be useful in some other, possibly legimate,
scenario.

Reported by Chazarain Guillaume <guichaz@yahoo.fr>.

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

2007-11-14 15:55:09 -08:00

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