docker/docker — pull request #9006 by snitm (2014-11-06 19:10:53+00:00)
Title: Thin pool improvements

Rebased ontop of @rhvgoyal's changes. This pull request provides:
1) small udev scanning fix for the case where docker creates the thin-pool
2) new --storage-opt dm.thinpooldev to allow an admin to create/manage the thin-pool that docker uses outside of docker.