cd-dump: lock connection with iptables rules only in a current netns
cd-dump: lock connection with iptables rules only in a current netns

For another netns we don't need to lock separate connections,
an external chanel can be locked.

Signed-off-by: Andrey Vagin <74c05afa918858348d6db8037d82fa8124870113@openvz.org>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@parallels.com>

fbocharov/criu,fbocharov/criu,eabatalov/criu,rentzsch/criu,LK4D4/criu,biddyweb/criu,LK4D4/criu,wtf42/criu,fbocharov/criu,eabatalov/criu,fbocharov/criu,eabatalov/criu,svloyso/criu,tych0/criu,eabatalov/criu,gonkulator/criu,kawamuray/criu,svloyso/criu,LK4D4/criu,kawamuray/criu,gonkulator/criu,tych0/criu,rentzsch/criu,marcosnils/criu,efiop/criu,kawamuray/criu,KKoukiou/criu-remote,sdgdsffdsfff/criu,sdgdsffdsfff/criu,gonkulator/criu,svloyso/criu,tych0/criu,kawamuray/criu,rentzsch/criu,AuthenticEshkinKot/criu,efiop/criu,AuthenticEshkinKot/criu,LK4D4/criu,efiop/criu,AuthenticEshkinKot/criu,wtf42/criu,KKoukiou/criu-remote,biddyweb/criu,wtf42/criu,AuthenticEshkinKot/criu,biddyweb/criu,wtf42/criu,gablg1/criu,gablg1/criu,gonkulator/criu,rentzsch/criu,AuthenticEshkinKot/criu,kawamuray/criu,ldu4/criu,marcosnils/criu,gablg1/criu,eabatalov/criu,sdgdsffdsfff/criu,KKoukiou/criu-remote,marcosnils/criu,sdgdsffdsfff/criu,tych0/criu,biddyweb/criu,KKoukiou/criu-remote,efiop/criu,wtf42/criu,biddyweb/criu,svloyso/criu,AuthenticEshkinKot/criu,marcosnils/criu,fbocharov/criu,ldu4/criu,LK4D4/criu,gonkulator/criu,KKoukiou/criu-remote,svloyso/criu,ldu4/criu,gablg1/criu,wtf42/criu,kawamuray/criu,gablg1/criu,sdgdsffdsfff/criu,eabatalov/criu,svloyso/criu,biddyweb/criu,efiop/criu,ldu4/criu,marcosnils/criu,tych0/criu,sdgdsffdsfff/criu,marcosnils/criu,KKoukiou/criu-remote,LK4D4/criu,gonkulator/criu,fbocharov/criu,rentzsch/criu,rentzsch/criu,gablg1/criu,tych0/criu,ldu4/criu,efiop/criu,ldu4/criu