rbd: probe the parent of an image if present

Call the probe function for the parent device if one is present.
Since we don't formally support the layering feature we won't
be using this functionality just yet.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
This commit is contained in:
Alex Elder 2012-10-30 19:40:33 -05:00 • committed by Sage Weil
commit 2f82ee54d9