Rework the restrict code so that we don't uselessly look at untouched children
Rework the restrict code so that we don't uselessly look at untouched children

git-svn-id: f552e3b7403805c36224128ac0804650b4a3a85e@3241 4b44e086-7f34-40ce-a3bd-00e031736276

BlueBrain/hwloc,BlueBrain/hwloc,BlueBrain/hwloc,BlueBrain/hwloc