2 files changed, 4 insertions, 2 deletions

diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 9d6fbeef2104..0f1ea2d6ed86 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -91,7 +91,7 @@ static inline void page_dup_rmap(struct page *page)
  * Called from mm/vmscan.c to handle paging out
  */
 int page_referenced(struct page *, int is_locked);
-int try_to_unmap(struct page *);
+int try_to_unmap(struct page *, int ignore_refs);
 
 /*
  * Called from mm/filemap_xip.c to unmap empty zero page
@@ -111,7 +111,7 @@ unsigned long page_address_in_vma(struct page *, struct vm_area_struct *);
 #define anon_vma_link(vma)      do {} while (0)
 
 #define page_referenced(page,l) TestClearPageReferenced(page)
-#define try_to_unmap(page)      SWAP_FAIL
+#define try_to_unmap(page, refs) SWAP_FAIL
 
 #endif  /* CONFIG_MMU */
 
diff --git a/include/linux/swap.h b/include/linux/swap.h
index e53fef7051e6..d359fc022433 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -191,6 +191,8 @@ static inline int zone_reclaim(struct zone *z, gfp_t mask, unsigned int order)
 #ifdef CONFIG_MIGRATION
 extern int isolate_lru_page(struct page *p);
 extern int putback_lru_pages(struct list_head *l);
+extern int migrate_page(struct page *, struct page *);
+extern void migrate_page_copy(struct page *, struct page *);
 extern int migrate_pages(struct list_head *l, struct list_head *t,
                 struct list_head *moved, struct list_head *failed);
 #else