K 10
svn:author
V 2
ae
K 8
svn:date
V 27
2014-10-14T13:31:47.353752Z
K 7
svn:log
V 368
Overhaul if_gif(4):
 o convert to if_transmit;
 o use rmlock to protect access to gif_softc;
 o use sx lock to protect from concurrent ioctls;
 o remove a lot of unneeded and duplicated code;
 o remove cached route support (it won't work with concurrent io);
 o style fixes.

Reviewed by:	melifaro
Obtained from:	Yandex LLC
MFC after:	1 month
Sponsored by:	Yandex LLC

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