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-rw-r--r--include/linux/swap.h64
1 files changed, 53 insertions, 11 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 1cf234e8df55..f1a827a972e0 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -282,18 +282,60 @@ static inline void disable_swap_token(void)
282#define free_pages_and_swap_cache(pages, nr) \ 282#define free_pages_and_swap_cache(pages, nr) \
283 release_pages((pages), (nr), 0); 283 release_pages((pages), (nr), 0);
284 284
285#define show_swap_cache_info() /*NOTHING*/ 285static inline void show_swap_cache_info(void)
286#define free_swap_and_cache(swp) /*NOTHING*/ 286{
287#define swap_duplicate(swp) /*NOTHING*/ 287}
288#define swap_free(swp) /*NOTHING*/ 288
289#define read_swap_cache_async(swp,vma,addr) NULL 289static inline void free_swap_and_cache(swp_entry_t swp)
290#define lookup_swap_cache(swp) NULL 290{
291#define valid_swaphandles(swp, off) 0 291}
292
293static inline int swap_duplicate(swp_entry_t swp)
294{
295 return 0;
296}
297
298static inline void swap_free(swp_entry_t swp)
299{
300}
301
302static inline struct page *read_swap_cache_async(swp_entry_t swp,
303 struct vm_area_struct *vma, unsigned long addr)
304{
305 return NULL;
306}
307
308static inline struct page *lookup_swap_cache(swp_entry_t swp)
309{
310 return NULL;
311}
312
313static inline int valid_swaphandles(swp_entry_t entry, unsigned long *offset)
314{
315 return 0;
316}
317
292#define can_share_swap_page(p) (page_mapcount(p) == 1) 318#define can_share_swap_page(p) (page_mapcount(p) == 1)
293#define move_to_swap_cache(p, swp) 1 319
294#define move_from_swap_cache(p, i, m) 1 320static inline int move_to_swap_cache(struct page *page, swp_entry_t entry)
295#define __delete_from_swap_cache(p) /*NOTHING*/ 321{
296#define delete_from_swap_cache(p) /*NOTHING*/ 322 return 1;
323}
324
325static inline int move_from_swap_cache(struct page *page, unsigned long index,
326 struct address_space *mapping)
327{
328 return 1;
329}
330
331static inline void __delete_from_swap_cache(struct page *page)
332{
333}
334
335static inline void delete_from_swap_cache(struct page *page)
336{
337}
338
297#define swap_token_default_timeout 0 339#define swap_token_default_timeout 0
298 340
299static inline int remove_exclusive_swap_page(struct page *p) 341static inline int remove_exclusive_swap_page(struct page *p)