[RFC][PATCH] ns: Syscalls for better namespace sharing control.

[Pavel Emelyanov]

> I agree with all the points you and Pavel you talked about but I don't 
> feel comfortable to have the current process to switch the pid namespace 
> because of the process tree hierarchy (what will be the parent of the 
> process when you enter the pid namespace for example).

The answer is - the one, that used to be. I see no problems with it.
Do you?