1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/swap.h b/include/linux/swap.h
index f30c06908f09..259e96c150ef 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -282,8 +282,10 @@ extern void si_swapinfo(struct sysinfo *);
 extern swp_entry_t get_swap_page(void);
 extern swp_entry_t get_swap_page_of_type(int);
 extern int swap_duplicate(swp_entry_t);
+extern int swapcache_prepare(swp_entry_t);
 extern int valid_swaphandles(swp_entry_t, unsigned long *);
 extern void swap_free(swp_entry_t);
+extern void swapcache_free(swp_entry_t, struct page *page);
 extern int free_swap_and_cache(swp_entry_t);
 extern int swap_type_of(dev_t, sector_t, struct block_device **);
 extern unsigned int count_swap_pages(int, int);
@@ -352,11 +354,16 @@ static inline void show_swap_cache_info(void)
 
 #define free_swap_and_cache(swp)        is_migration_entry(swp)
 #define swap_duplicate(swp)             is_migration_entry(swp)
+#define swapcache_prepare(swp)          is_migration_entry(swp)
 
 static inline void swap_free(swp_entry_t swp)
 {
 }
 
+static inline void swapcache_free(swp_entry_t swp, struct page *page)
+{
+}
+
 static inline struct page *swapin_readahead(swp_entry_t swp, gfp_t gfp_mask,
                         struct vm_area_struct *vma, unsigned long addr)
 {