Access to xenbus is currently handled via xenfs. This adds a device
driver for xenbus and makes xenfs use this code.
Signed-off-by: NBastian Blank <waldi@debian.org>
Acked-by: NIan Campbell <ian.campbell@citrix.com>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>