fdescfs patch for working hierarchical jails

[James Gritton]

On 9/25/2014 3:40 AM, Ruben van Staveren wrote:
> Hi,
>
> Could a committer have a look at https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192951 ?
>
> This enables fdescfs in hierarchical jails, would be nice to have this for 10.1
>
> Thanks!
>
> Best Regards,
>      Ruben van Staveren

This would have to go into current first, and then MFC.  Considering
10.1 is getting close to release, I suspect it wouldn't be allowed in.
Also, I'm not sure I'd want to implement this in quite the proposed
way: it might suffice (from a security viewpoint) to use the existing
allow.mount.devfs for mounting fdescfs.

- Jamie