K 10
svn:author
V 8
melifaro
K 8
svn:date
V 27
2013-10-29T09:57:00.439776Z
K 7
svn:log
V 217
Merge r256550.

Improve locking model used to protect netgraph topology:
use rwlocks instead of mutexes on node traversal.

Reviewed by:	glebius
Tested by:	Eugene Grosbein <egrosbein@rdtc.ru>
Sponsored by:	Yandex LLC

END