[REVIEW][PATCH v2] mm: Add a user_ns owner to mm_struct and fix ptrace permission checks

[Cyrill Gorcunov]

On Thu, Oct 27, 2016 at 11:45:37PM -0500, Eric W. Biederman wrote:
> 
> Mind if I add your tested-by?
> 
> To see Linus's tree fail with my patch you can apply the patch below.
> That is the essence of what I changed to fix things.  Just ignoring
> dumpable when an mm exists.

Tested-by: Cyrill Gorcunov <gorcunov at openvz.org>

Thanks a huge!