We need to access it right way, so make sure that it is mapped already. Prepare to put page table on local node, and nodemap is used before that. Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4D1933C8.7060105@kernel.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>