This patch provides a conversion routine for 32-bit user space apps that
call into a 64-bit kernel on x86_64 architectures.  This is required for
the HP Array Configuration utility and the HP management agents.  Without
this patch the apps will not function.

The 2 ioctls affected are the cciss pass thru ioctls.  Caveat: it spits out
2 warnings during compilation.  I've tried everything I can think of to
clean them up, but...  If anyone has any helpful suggestions I'm all ears.

Code by Stephen Cameron
Tested by Stephen Cameron & Mike Miller
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>