From: Liu Bo <liubo2009@cn.fujitsu.com>
Date: Tue, 10 Jul 2012 11:28:39 +0000 (-0600)
Subject: Btrfs: kill root from btrfs_is_free_space_inode
X-Git-Tag: v3.6-rc1~81^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83eea1f1bacd5dc7b44dcf84f5fdca54fdea5453;p=pandora-kernel.git

Btrfs: kill root from btrfs_is_free_space_inode

Since root can be fetched via BTRFS_I macro directly, we can save an args
for btrfs_is_free_space_inode().

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