[TCP]: Add highest_sack seqno, points to globally highest SACK
commitd738cd8fca948e45d53120247cb7a5f5be3ca09e
authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>
Sun, 25 Mar 2007 04:03:23 +0000 (24 21:03 -0700)
committerDavid S. Miller <davem@sunset.davemloft.net>
Wed, 10 Oct 2007 23:47:50 +0000 (10 16:47 -0700)
treeb2136bcfa2802a21b41de72eb4f6dc338a0bd321
parentd961db358f41033a8fc7b62948bc7cff1b4bb1fe
[TCP]: Add highest_sack seqno, points to globally highest SACK

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>
include/linux/tcp.h
net/ipv4/tcp_input.c