diff --git a/include/linux/swap.h b/include/linux/swap.h
index 46d51d058d05..49b1dd2c100b 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -446,6 +446,7 @@ extern void __delete_from_swap_cache(struct page *page,
 extern void delete_from_swap_cache(struct page *);
 extern void clear_shadow_from_swap_cache(int type, unsigned long begin,
 				unsigned long end);
+extern void free_swap_cache(struct page *);
 extern void free_page_and_swap_cache(struct page *);
 extern void free_pages_and_swap_cache(struct page **, int);
 extern struct page *lookup_swap_cache(swp_entry_t entry,
@@ -551,6 +552,10 @@ static inline void put_swap_device(struct swap_info_struct *si)
 #define free_pages_and_swap_cache(pages, nr) \
 	release_pages((pages), (nr));
 
+static inline void free_swap_cache(struct page *page)
+{
+}
+
 static inline void show_swap_cache_info(void)
 {
 }
diff --git a/mm/memory.c b/mm/memory.c
index b15367c285bd..a4d82a6de000 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3023,6 +3023,8 @@ static vm_fault_t wp_page_copy(struct vm_fault *vmf)
 				munlock_vma_page(old_page);
 			unlock_page(old_page);
 		}
+		if (page_copied)
+			free_swap_cache(old_page);
 		put_page(old_page);
 	}
 	return page_copied ? VM_FAULT_WRITE : 0;
diff --git a/mm/swap_state.c b/mm/swap_state.c
index 1a2ba4056f37..4f8a912ff692 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -286,7 +286,7 @@ void clear_shadow_from_swap_cache(int type, unsigned long begin,
  * try_to_free_swap() _with_ the lock.
  * 					- Marcelo
  */
-static inline void free_swap_cache(struct page *page)
+void free_swap_cache(struct page *page)
 {
 	if (PageSwapCache(page) && !page_mapped(page) && trylock_page(page)) {
 		try_to_free_swap(page);