We don't need int argument bool shall do in free_root_pointers().  And
rename the argument as it confused two people.
Reviewed-by: NQu Wenruo <wqu@suse.com>
Signed-off-by: NAnand Jain <anand.jain@oracle.com>
Reviewed-by: NDavid Sterba <dsterba@suse.com>
Signed-off-by: NDavid Sterba <dsterba@suse.com>