Regression test for commit:
9559996 ext4: remove mb_groups before tearing down the buddy_cache
Signed-off-by: Eryu Guan <eguan@redhat.com>
Reviewed-by: Rich Johnston <rjohnston@sgi.com>
[rjohnston@sgi.com renumbered test to next in group sequence]
Signed-off-by: Rich Johnston <rjohnston@sgi.com>