diff --git a/include/linux/mm.h b/include/linux/mm.h
index 57d3d5f..e173cd2 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1381,7 +1381,7 @@
 extern void memmap_init_zone(unsigned long, int, unsigned long,
 				unsigned long, enum memmap_context);
 extern void setup_per_zone_wmarks(void);
-extern void calculate_zone_inactive_ratio(struct zone *zone);
+extern int __meminit init_per_zone_wmark_min(void);
 extern void mem_init(void);
 extern void __init mmap_init(void);
 extern void show_mem(unsigned int flags);