From: Alex Elder <elder@inktank.com>
Date: Sat, 2 Mar 2013 00:00:16 +0000 (-0600)
Subject: libceph: abstract message data
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~26^2~200
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=437945094fed0deb1810e8da95465c8f26bc6f80;p=pandora-kernel.git

libceph: abstract message data

Group the types of message data into an abstract structure with a
type indicator and a union containing fields appropriate to the
type of data it represents.  Use this to represent the pages,
pagelist, bio, and trail in a ceph message.

Verify message data is of type NONE in ceph_msg_data_set_*()
routines.  Since information about message data of type NONE really
should not be interpreted, get rid of the other assertions in those
functions.

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