diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 56a23a0..9d4074e 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -117,6 +117,7 @@
 int sync_page_range_nolock(struct inode *inode, struct address_space *mapping,
 			   loff_t pos, loff_t count);
 void set_page_dirty_balance(struct page *page);
+void writeback_set_ratelimit(void);
 
 /* pdflush.c */
 extern int nr_pdflush_threads;	/* Global so it can be exported to sysctl
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 9576ed9..2053bb1 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -13,6 +13,7 @@
 #include <linux/compiler.h>
 #include <linux/module.h>
 #include <linux/pagevec.h>
+#include <linux/writeback.h>
 #include <linux/slab.h>
 #include <linux/sysctl.h>
 #include <linux/cpu.h>
@@ -192,6 +193,7 @@
 	if (need_zonelists_rebuild)
 		build_all_zonelists();
 	vm_total_pages = nr_free_pagecache_pages();
+	writeback_set_ratelimit();
 	return 0;
 }
 
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index efd2705..488b708 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -501,7 +501,7 @@
  * will write six megabyte chunks, max.
  */
 
-static void set_ratelimit(void)
+void writeback_set_ratelimit(void)
 {
 	ratelimit_pages = vm_total_pages / (num_online_cpus() * 32);
 	if (ratelimit_pages < 16)
@@ -513,7 +513,7 @@
 static int __cpuinit
 ratelimit_handler(struct notifier_block *self, unsigned long u, void *v)
 {
-	set_ratelimit();
+	writeback_set_ratelimit();
 	return 0;
 }
 
@@ -546,7 +546,7 @@
 			vm_dirty_ratio = 1;
 	}
 	mod_timer(&wb_timer, jiffies + dirty_writeback_interval);
-	set_ratelimit();
+	writeback_set_ratelimit();
 	register_cpu_notifier(&ratelimit_nb);
 }