[TCP]: Add highest_sack seqno, points to globally highest SACK

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It is guaranteed to be valid only when !tp->sacked_out. In most
cases this seqno is available in the last ACK but there is no
guarantee for that. The new fast recovery loss marking algorithm
needs this as entry point.

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

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Ilpo Järvinen 2007-03-24 21:03:23 -07:00 • committed by David S. Miller

parent d961db358f

commit d738cd8fca

2 changed files with 9 additions and 1 deletions

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2

include/linux/tcp.h

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8

net/ipv4/tcp_input.c

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