graphdriver: promote overlay above vfs

It's about time to let folks not hit 'vfs', when 'overlay' is supported
on their kernel. Especially now that v3.18.y is a long-term kernel.

Signed-off-by: Vincent Batts <vbatts@redhat.com>
Upstream-commit: 2c72ff1dbfa83aa8f797bdfebaacb8a919677326
Component: engine
This commit is contained in:
Vincent Batts
2015-03-31 17:18:49 -04:00
parent 471b420e47
commit 3a4dbacc2f
@@ -39,9 +39,8 @@ var (
"aufs",
"btrfs",
"devicemapper",
"vfs",
// experimental, has to be enabled manually for now
"overlay",
"vfs",
}
ErrNotSupported = errors.New("driver not supported")