From: Alex Elder <elder@inktank.com>
Date: Tue, 5 Mar 2013 04:29:57 +0000 (-0600)
Subject: ceph: only set message data pointers if non-empty
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~26^2~213
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ebf18f47093e968105767eed4a0aa155e86b224e;p=pandora-kernel.git

ceph: only set message data pointers if non-empty

Change it so we only assign outgoing data information for messages
if there is outgoing data to send.

This then allows us to add a few more (currently commented-out)
assertions.

This is related to:
    http://tracker.ceph.com/issues/4284

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Greg Farnum <greg@inktank.com>
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