diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 5c1de53c8c1c..fc6c6636ffda 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -682,15 +682,6 @@ mem_init (void)
 }
 
 #ifdef CONFIG_MEMORY_HOTPLUG
-void online_page(struct page *page)
-{
-	ClearPageReserved(page);
-	init_page_count(page);
-	__free_page(page);
-	totalram_pages++;
-	num_physpages++;
-}
-
 int arch_add_memory(int nid, u64 start, u64 size)
 {
 	pg_data_t *pgdat;
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 5ccb579b81e4..d9e37f365b54 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -110,15 +110,6 @@ EXPORT_SYMBOL(phys_mem_access_prot);
 
 #ifdef CONFIG_MEMORY_HOTPLUG
 
-void online_page(struct page *page)
-{
-	ClearPageReserved(page);
-	init_page_count(page);
-	__free_page(page);
-	totalram_pages++;
-	num_physpages++;
-}
-
 #ifdef CONFIG_NUMA
 int memory_add_physaddr_to_nid(u64 start)
 {
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 53dde0607362..d7df26bd1e54 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -307,15 +307,6 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 #endif
 
 #ifdef CONFIG_MEMORY_HOTPLUG
-void online_page(struct page *page)
-{
-	ClearPageReserved(page);
-	init_page_count(page);
-	__free_page(page);
-	totalram_pages++;
-	num_physpages++;
-}
-
 int arch_add_memory(int nid, u64 start, u64 size)
 {
 	pg_data_t *pgdat;
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 4a4761892951..de236e419cb5 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -287,47 +287,17 @@ static void __init permanent_kmaps_init(pgd_t *pgd_base)
 	pkmap_page_table = pte;
 }
 
-static void __meminit free_new_highpage(struct page *page)
-{
-	init_page_count(page);
-	__free_page(page);
-	totalhigh_pages++;
-}
-
 void __init add_one_highpage_init(struct page *page, int pfn, int bad_ppro)
 {
 	if (page_is_ram(pfn) && !(bad_ppro && page_kills_ppro(pfn))) {
 		ClearPageReserved(page);
-		free_new_highpage(page);
+		init_page_count(page);
+		__free_page(page);
+		totalhigh_pages++;
 	} else
 		SetPageReserved(page);
 }
 
-static int __meminit
-add_one_highpage_hotplug(struct page *page, unsigned long pfn)
-{
-	free_new_highpage(page);
-	totalram_pages++;
-#ifdef CONFIG_FLATMEM
-	max_mapnr = max(pfn, max_mapnr);
-#endif
-	num_physpages++;
-
-	return 0;
-}
-
-/*
- * Not currently handling the NUMA case.
- * Assuming single node and all memory that
- * has been added dynamically that would be
- * onlined here is in HIGHMEM.
- */
-void __meminit online_page(struct page *page)
-{
-	ClearPageReserved(page);
-	add_one_highpage_hotplug(page, page_to_pfn(page));
-}
-
 #ifndef CONFIG_NUMA
 static void __init set_highmem_pages_init(int bad_ppro)
 {
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 5fbb8652cf59..32ba13b0f818 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -620,15 +620,6 @@ void __init paging_init(void)
 /*
  * Memory hotplug specific functions
  */
-void online_page(struct page *page)
-{
-	ClearPageReserved(page);
-	init_page_count(page);
-	__free_page(page);
-	totalram_pages++;
-	num_physpages++;
-}
-
 #ifdef CONFIG_MEMORY_HOTPLUG
 /*
  * Memory is added always to NORMAL zone. This means you will never get
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index d5094929766d..c8b3ca79de2d 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -219,6 +219,25 @@ static void grow_pgdat_span(struct pglist_data *pgdat,
 					pgdat->node_start_pfn;
 }
 
+void online_page(struct page *page)
+{
+	totalram_pages++;
+	num_physpages++;
+
+#ifdef CONFIG_HIGHMEM
+	if (PageHighMem(page))
+		totalhigh_pages++;
+#endif
+
+#ifdef CONFIG_FLATMEM
+	max_mapnr = max(page_to_pfn(page), max_mapnr);
+#endif
+
+	ClearPageReserved(page);
+	init_page_count(page);
+	__free_page(page);
+}
+
 static int online_pages_range(unsigned long start_pfn, unsigned long nr_pages,
 			void *arg)
 {