From 1f199ed276f69a5fd64ad2b76c6f93673148dacc Mon Sep 17 00:00:00 2001
From: Oleg Drokin <green@linuxhacker.ru>
Date: Wed, 21 Jan 2015 03:10:47 -0500
Subject: [PATCH] staging/lustre/llite: get rid of backing_dev_info

With removal of backing_dev_info from struct address_space,
we don't need to assign it in Lustre either.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Jens Axboe <axboe@fb.com>
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