howto setup docker storage on btrfs f23?

[Neal Becker]

My root (and only) FS is btrfs.
 sudo systemctl status docker
  docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor 
preset: disabled)
   Active: failed (Result: exit-code) since Fri 2016-03-18 07:18:31 EDT; 18s 
ago
     Docs: http://docs.docker.com
  Process: 19909 ExecStart=/usr/bin/docker daemon $OPTIONS 
$DOCKER_STORAGE_OPTIONS $DOCKER_NETWORK_OPTIONS $INSECURE_REGISTRY 
(code=exited, status=1/FAILURE)
 Main PID: 19909 (code=exited, status=1/FAILURE)

What do I need to start docker on btrfs on f23?