From: Josef Bacik <jbacik@fb.com>
Date: Fri, 13 Dec 2013 15:02:44 +0000 (-0500)
Subject: Btrfs: deal with io_tree->mapping being NULL
X-Git-Tag: v3.14-rc1~29^2~95
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a5dee37d390f3713f06e286a33b262f0fdb2b0ff;p=pandora-kernel.git

Btrfs: deal with io_tree->mapping being NULL

I need to add infrastructure to allocate dummy extent buffers for running sanity
tests, and to do this I need to not have to worry about having an
address_mapping for an io_tree, so just fix up the places where we assume that
all io_tree's have a non-NULL ->mapping.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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