From: Joe Thornber <ejt@redhat.com>
Date: Fri, 3 Jul 2015 13:51:32 +0000 (+0100)
Subject: dm btree: silence lockdep lock inversion in dm_btree_del()
X-Git-Tag: omap-for-v4.3/fixes-merge-window~228^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1c7518794a3647eb345d59ee52844e8a40405198;p=pandora-kernel.git

dm btree: silence lockdep lock inversion in dm_btree_del()

Allocate memory using GFP_NOIO when deleting a btree.  dm_btree_del()
can be called via an ioctl and we don't want to recurse into the FS or
block layer.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
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