rbd: define rbd_dev_unparent()
authorAlex Elder <elder@inktank.com>
Thu, 9 May 2013 03:50:04 +0000 (22:50 -0500)
committerAlex Elder <elder@inktank.com>
Mon, 13 May 2013 20:06:43 +0000 (15:06 -0500)
Define rbd_dev_unparent() to encapsulate cleaning up parent data
structures from a layered rbd image.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
drivers/block/rbd.c

Simple merge