From: Josef Bacik <jbacik@fusionio.com>
Date: Wed, 7 Aug 2013 18:54:37 +0000 (-0400)
Subject: Btrfs: deal with enomem in the rewind path
X-Git-Tag: v3.12-rc1~40^2~76
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=db7f3436c1c186f8271018751fcb338cf3706e8d;p=pandora-kernel.git

Btrfs: deal with enomem in the rewind path

We can get ENOMEM trying to allocate dummy bufs for the rewind operation of the
tree mod log.  Instead of BUG_ON()'ing in this case pass up ENOMEM.  I looked
back through the callers and I'm pretty sure I got everybody who did BUG_ON(ret)
in this path.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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