powerpc: Correct page-in counter for CMM

Linux will report the number of page-ins so that the hypervisor can better determine partition memory pressure. The hardware page size and the OS page size can be different. In the case where the hardware page size is 4k and the OS is running with 64k pages the prior patch would under-report the number of pages. This patch uses PAGE_FACTOR to correct the reporting to the hypervisor.

---
 arch/powerpc/mm/fault.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: b/arch/powerpc/mm/fault.c
===================================================================
@@ -324,7 +324,7 @@ good_area:
 #ifdef CONFIG_PPC_SMLPAR
 		if (firmware_has_feature(FW_FEATURE_CMO)) {
 			preempt_disable();
-			get_lppaca()->page_ins++;
+			get_lppaca()->page_ins += (1 << PAGE_FACTOR);
 			preempt_enable();
 		}
 #endif