[PATCH] [RFC] c/r: Add UTS support

[Dan Smith]

DL> I guess it will be esay to implement with a nsproxy level counter.
DL> Each time you unshare, the new nsproxy count is incremented.
DL> Assuming the init_nsproxy is level 0, when the nsproxy counter is
DL> > 1, the process is uncheckpointable.

This should also be possible by just making sure that the nsproxy of
the root process being checkpointed is the same as any of the
children, correct?  That way we avoid having to modify the core
nsproxy bits and can still reject any nested namespaces.

-- 
Dan Smith
IBM Linux Technology Center
email: danms at us.ibm.com