Move page_is_ram() declaration to mm.h, it makes no sense in <linux/ioport.h>.
Signed-off-by: NWu Fengguang <fengguang.wu@intel.com>
LKML-Reference: <20100127030639.GD8132@localhost>
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>