From: Alex Elder <elder@inktank.com>
Date: Fri, 18 Jan 2013 18:31:10 +0000 (-0600)
Subject: rbd: implement watch/unwatch with new code
X-Git-Tag: v3.9-rc1~41^2~21^2~42
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9969ebc5af93028c21f2614621737f0d6ff6fc06;p=pandora-kernel.git

rbd: implement watch/unwatch with new code

Implement a new function to set up or tear down a watch event
for an mapped rbd image header using the new request code.

Create a new object request type "nodata" to handle this.  And
define rbd_osd_trivial_callback() which simply marks a request done.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
---

Reading git-diff-tree failed