tcp: make sysctl variables ack_war_timewindow and ack_war_cnt vnet specific

[tuexen]

Summary

As suggested by glebius@. While there, improve the documentation.

[cc]

ship after update

sys/netinet/tcp_subr.c

145

(to ack_war_cnt) can just be (ack_war_cnt)

[peter.lei_ieee.org]

We need these applied to rack_bbr_common.c as well.

[tuexen]

Add required changes to rack.c and rack_bbr_common.c.

[tuexen]

In D46140#1052086, @peter.lei_ieee.org wrote:

We need these applied to rack_bbr_common.c as well.

Thanks. Without those changes, the modules compile, but do not load. There was also a change in rack.c missing. Fixed now.

[tuexen]

Address comment from cc@ and bump date in man page.

[tuexen]

sys/netinet/tcp_subr.c

145

Fixed.

[tuexen]

Committed in 4036380e0297.