K 10
svn:author
V 7
rscheff
K 8
svn:date
V 27
2020-06-24T13:42:42.784844Z
K 7
svn:log
V 520
TCP: make after-idle work for transactional sessions.

The use of t_rcvtime as proxy for the last transmission
fails for transactional IO, where the client requests
data before the server can respond with a bulk transfer.

Set aside a dedicated variable to actually track the last
locally sent segment going forward.

Reported by:	rrs
Reviewed by:	rrs, tuexen (mentor)
Approved by:	tuexen (mentor), rgrimes (mentor)
MFC after:	2 weeks
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D25016

END