> > > > If you get down to it, the thing is about delegating control over part
quoted text
> > > > of namespace to somebody, without letting them control, see, etc. the
> > > > rest of it.  So I'd rather be very conservative about extra information
> > > > we allow to piggyback on that.  I don't know... perhaps with stable peer
> > > > group IDs it would be OK to show peer group ID by (our) vfsmount + peer
> > > > group ID of master + peer group ID of nearest dominating group that has
> > > > intersection with our namespace.  Then we don't leak information (AFAICS),
> > > > get full propagation information between our vfsmounts and cooperating
> > > > tasks in different namespaces can figure the things out as much as possible
> > > > without leaking 3rd-party information to either.
> > > 
> > 
> > Here's a patch against current -mm implementing this (with some
> > cleanups thrown in).  Done some testing on it as well, it wasn't
> > entirey trivial to figure out a setup, where propagation goes out of
> > the namespace first, then comes back in:
> 
> Looks nice, and a bit of testing/playing around showed no problem on my
> end.

Thanks for testing!

Ram, how is your patch progressing?  Could you send me the final
version sometime, so that I can put a new version of this work
together and sumbit to -mm for more eyeballs?

Thanks,
Miklos
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