Convert the cciss driver to compat_ioctl.  This cleans up a lot of code.

I don't have such hardware thus this is only compile tested.
Signed-off-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>