Move som e instructions to be able to determine the region earlier.

Signed-off-by: Christoph Lameter <clameter@sgi.com>

Index: linux-2.6.18-mm3/arch/ia64/kernel/ivt.S
===================================================================
--- linux-2.6.18-mm3.orig/arch/ia64/kernel/ivt.S	2006-10-08 18:30:13.295347176 -0700
+++ linux-2.6.18-mm3/arch/ia64/kernel/ivt.S	2006-10-09 13:40:26.320584078 -0700
@@ -429,11 +429,11 @@ ENTRY(nested_dtlb_miss)
 	mov r19=IA64_KR(PT_BASE)		// get the page table base address
 	shl r21=r16,3				// shift bit 60 into sign bit
 	mov r18=cr.itir
-	;;
 	shr.u r17=r16,61			// get the region number into r17
-	extr.u r18=r18,2,6			// get the faulting page size
 	;;
+	extr.u r18=r18,2,6			// get the faulting page size
 	cmp.eq p6,p7=5,r17			// is faulting address in region 5?
+	;;
 	add r22=-PAGE_SHIFT,r18			// adjustment for hugetlb address
 	add r18=PGDIR_SHIFT-PAGE_SHIFT,r18
 	;;