97445c3b86
Prepare to enable it for 32bit. -v2: remove not needed cast Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <1265793639-15071-7-git-send-email-yinghai@kernel.org> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>