Also broken design in its compat handlers - CONFIG_COMPAT doesn't 
mean that there should be no native ioctls.
Signed-off-by: NAndi Kleen <ak@muc.de>

Reworked with comments from Markus Lidel by:
Christoph Hellwig <hch@infradead.org>

Rejections fixed and
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>