x86: get max_pfn_mapped in init_memory_mapping

so don't shift that in the loop

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 9b60491..359e3af 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -346,7 +346,7 @@
 	__flush_tlb_all();
 	update_page_count(PG_LEVEL_1G, pages);
 
-	return last_map_addr >> PAGE_SHIFT;
+	return last_map_addr;
 }
 
 static void __init find_early_table_space(unsigned long end)
@@ -556,7 +556,7 @@
 	if (!after_bootmem)
 		early_memtest(start_phys, end_phys);
 
-	return last_map_addr;
+	return last_map_addr >> PAGE_SHIFT;
 }
 
 #ifndef CONFIG_NUMA