BTRFS admin access control

I've just written a script for "mon" to monitor BTRFS filesystems.  I had to 
use sudo because "btrfs device stats" needs to be run as root.

Would it be possible to do some of these things as non-root?  I think it would 
be ideal if there was a "btrfs tunefs" operation somewhat comparable to 
"tune2fs" that allowed us to specify which UID or GID could perform operations 
like "btrfs device stats".

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