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Diffstat (limited to 'include/linux/swap.h')
-rw-r--r--include/linux/swap.h17
1 files changed, 13 insertions, 4 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 51ec9cdb92c0..8a4c592698a9 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -414,9 +414,13 @@ extern struct address_space *swapper_spaces[];
extern unsigned long total_swapcache_pages(void);
extern void show_swap_cache_info(void);
extern int add_to_swap(struct page *page);
-extern int add_to_swap_cache(struct page *, swp_entry_t, gfp_t);
-extern void __delete_from_swap_cache(struct page *, swp_entry_t entry);
+extern int add_to_swap_cache(struct page *page, swp_entry_t entry,
+ gfp_t gfp, void **shadowp);
+extern void __delete_from_swap_cache(struct page *page,
+ swp_entry_t entry, void *shadow);
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_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,
@@ -570,13 +574,13 @@ static inline int add_to_swap(struct page *page)
}
static inline int add_to_swap_cache(struct page *page, swp_entry_t entry,
- gfp_t gfp_mask)
+ gfp_t gfp_mask, void **shadowp)
{
return -1;
}
static inline void __delete_from_swap_cache(struct page *page,
- swp_entry_t entry)
+ swp_entry_t entry, void *shadow)
{
}
@@ -584,6 +588,11 @@ static inline void delete_from_swap_cache(struct page *page)
{
}
+static inline void clear_shadow_from_swap_cache(int type, unsigned long begin,
+ unsigned long end)
+{
+}
+
static inline int page_swapcount(struct page *page)
{
return 0;