From bcd53741cc2af4342ac3ff6983bddc4a1b63b9b4 Mon Sep 17 00:00:00 2001
From: Arne Jansen <sensille@gmx.net>
Date: Tue, 12 Apr 2011 10:43:21 +0200
Subject: [PATCH] btrfs: move btrfs_cmp_device_free_bytes to super.c

this function won't be used here anymore, so move it super.c where it is
used for df-calculation
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Reading git-format-patch failed