From: Alex Elder <elder@inktank.com>
Date: Tue, 3 Jul 2012 21:01:19 +0000 (-0500)
Subject: rbd: update remaining header fields for v2
X-Git-Tag: v3.7-rc1~90^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e14b1a6c3b8d7e48ece68733d2dac0464611ee4;p=pandora-kernel.git

rbd: update remaining header fields for v2

There are three fields that are not yet updated for format 2 rbd
image headers:  the version of the header object; the encryption
type; and the compression type.  There is no interface defined for
fetching the latter two, so just initialize them explicitly to 0 for
now.

Change rbd_dev_v2_snap_context() so the caller can be supplied the
version for the header object.

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