From: Liu Bo <liubo2009@cn.fujitsu.com>
Date: Tue, 10 Jul 2012 11:28:38 +0000 (-0600)
Subject: Btrfs: fix btrfs_is_free_space_inode to recognize btree inode
X-Git-Tag: v3.6-rc1~81^2~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=51a8cf9d2d97017d334f33f1b39067bd2f03bc49;p=pandora-kernel.git

Btrfs: fix btrfs_is_free_space_inode to recognize btree inode

For btree inode, its root is also 'tree root', so btree inode can be
misunderstood as a free space inode.

We should add one more check for btree inode.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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