[TCP]: fix D-SACK cwnd handling

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In the current net-2.6 kernel, handling FLAG_DSACKING_ACK is broken.
The flag is cleared to 1 just after FLAG_DSACKING_ACK is set.

        if (found_dup_sack)
                flag |= FLAG_DSACKING_ACK;
	:
	flag = 1;

To fix it, this patch introduces a part of the tcp_sacktag_state patch:
	http://marc.info/?l=linux-netdev&m=119210560431519&w=2

Signed-off-by: Ryousei Takano <takano-ryousei@aist.go.jp>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Ryousei Takano 2007-10-26 04:27:59 -07:00 • committed by David S. Miller

parent 43cc7380ec

commit 94d3b1e586

1 changed files with 5 additions and 7 deletions

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net/ipv4/tcp_input.c

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