add a macro to wrap a privilegied function
add a macro to wrap a privilegied function

This macro is a helper to call a function into a [un]privilegied section.

Signed-off-by: Daniel Lezcano <3211518dd4d87cb3f7ee12cb52e14b7fb2bc0446@fr.ibm.com>

thmo/lxc,ysbnim/lxc,ostap/lxc,Ponce/lxc,yubo/lxc,GreatFruitOmsk/lxc,ostap/lxc,abstrakraft/lxc-android-lxc,virajs/lxc,Distrotech/lxc,smoser/lxc,raspberrypython/lxc,ojkastl/lxc_Patches,christiaan/lxc,hfuCN/lxc,federicobriata/lxc,akshaykarle/lxc,glensc/lxc,rowhit/lxc,szaszg/lxc,yubo/lxc,jirislaby/lxc,fwilson42/lxc,LynxChaus/lxc,smoser/lxc,glensc/lxc,weizhenwei/lxc,JohnPeacockMessageSystems/lxc,coconutpilot/lxc-gentoo-new,thmo/lxc,Pelagicore/lxc,bostjan/lxc,caglar10ur/lxc,major/lxc,ioops/lxc,hallyn/lxc,federicobriata/lxc,Pelagicore/lxc,inokappa/lxc,virajs/lxc,bmoar/lxc,sapun/lxc,ss1h2a3tw/lxc,abstrakraft/lxc-android-lxc,JohnPeacockMessageSystems/lxc,christiaan/lxc,rldleblanc/lxc,ecarrara/lxc,usc-isi/lxc,jirislaby/lxc,Distrotech/lxc,efiop/lxc,akshaykarle/lxc,weizhenwei/lxc,codebauss/lxc,codebauss/lxc,fwilson42/lxc,ysbnim/lxc,glensc/lxc,lazy404/lxc,terceiro/lxc,LynxChaus/lxc,armcc/lxc,hfuCN/lxc,ojkastl/lxc_Patches,ksperis/lxc,Ponce/lxc,cjwatson/lxc,usc-isi/lxc,ioops/lxc,QingweiPeterLan/cs188-lxc,smoser/lxc,major/lxc,regit/lxc,major/lxc,JohnPeacockMessageSystems/lxc,kylef/lxc,yubo/lxc,hfuCN/lxc,sapun/lxc,ss1h2a3tw/lxc,aeris/lxc,lisongmin/lxc,caglar10ur/lxc,weizhenwei/lxc,inokappa/lxc,ss1h2a3tw/lxc,QingweiPeterLan/cs188-lxc,terceiro/lxc,ksperis/lxc,tych0/lxc,regit/lxc,bmoar/lxc,QingweiPeterLan/cs188-lxc,szaszg/lxc,raspberrypython/lxc,ojkastl/lxc_Patches,bostjan/lxc,akshaykarle/lxc,DarknessBeforeDawn/lxc,lazy404/lxc,federicobriata/lxc,ioops/lxc,cjwatson/lxc,usc-isi/lxc,abstrakraft/lxc-android-lxc,rldleblanc/lxc,cjwatson/lxc,aeris/lxc,DarknessBeforeDawn/lxc,lisongmin/lxc,sapun/lxc,lisongmin/lxc,bmoar/lxc,ksperis/lxc,coconutpilot/lxc-gentoo-new,regit/lxc,LynxChaus/lxc,kylef/lxc,ecarrara/lxc,tych0/lxc,armcc/lxc,rowhit/lxc,abstrakraft/lxc-android-lxc,bostjan/lxc,rldleblanc/lxc,terceiro/lxc,tych0/lxc,thmo/lxc,christiaan/lxc,virajs/lxc,GreatFruitOmsk/lxc,smoser/lxc,efiop/lxc,hkjolhede/lxc,aeris/lxc,lazy404/lxc,hallyn/lxc,DarknessBeforeDawn/lxc,Distrotech/lxc,armcc/lxc,hallyn/lxc,fwilson42/lxc,codebauss/lxc,rowhit/lxc,ecarrara/lxc,GreatFruitOmsk/lxc,Ponce/lxc,hkjolhede/lxc,raspberrypython/lxc,caglar10ur/lxc,hkjolhede/lxc,jirislaby/lxc,ysbnim/lxc,efiop/lxc,ojkastl/lxc_Patches,potatosalad/lxc,Pelagicore/lxc,potatosalad/lxc,szaszg/lxc