From be283b2e674a09457d4563729015adb637ce7cc1 Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Thu, 14 Mar 2013 14:58:05 +0000
Subject: [PATCH] Btrfs: use helper to cleanup tree roots

free_root_pointers() has been introduced to cleanup all of tree roots,
so just use it instead.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
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Reading git-format-patch failed