From: Josef Bacik <josef@redhat.com>
Date: Wed, 5 Oct 2011 14:00:18 +0000 (-0400)
Subject: Btrfs: don't skip writing out a empty block groups cache
X-Git-Tag: v3.2-rc1~21^2~24^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f75b130e9bb361850787e156c79311adb84f551e;p=pandora-kernel.git

Btrfs: don't skip writing out a empty block groups cache

I noticed a slight bug where we will not bother writing out the block group
cache's space cache if it's space tree is empty.  Since it could have a cluster
or pinned extents that need to be written out this is just not a valid test.
Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
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