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Diffstat (limited to 'include/linux/swap.h')
-rw-r--r--include/linux/swap.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 4a99e4a7fbf3..f3e17d5963c3 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -178,6 +178,7 @@ extern int vm_swappiness;
#ifdef CONFIG_NUMA
extern int zone_reclaim_mode;
+extern int zone_reclaim_interval;
extern int zone_reclaim(struct zone *, gfp_t, unsigned int);
#else
#define zone_reclaim_mode 0
@@ -190,13 +191,20 @@ 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_page_remove_references(struct page *, struct page *, int);
extern int migrate_pages(struct list_head *l, struct list_head *t,
struct list_head *moved, struct list_head *failed);
+extern int fail_migrate_page(struct page *, struct page *);
#else
static inline int isolate_lru_page(struct page *p) { return -ENOSYS; }
static inline int putback_lru_pages(struct list_head *l) { return 0; }
static inline int migrate_pages(struct list_head *l, struct list_head *t,
struct list_head *moved, struct list_head *failed) { return -ENOSYS; }
+/* Possible settings for the migrate_page() method in address_operations */
+#define migrate_page NULL
+#define fail_migrate_page NULL
#endif
#ifdef CONFIG_MMU
@@ -245,6 +253,7 @@ extern int remove_exclusive_swap_page(struct page *);
struct backing_dev_info;
extern spinlock_t swap_lock;
+extern int remove_vma_swap(struct vm_area_struct *vma, struct page *page);
/* linux/mm/thrash.c */
extern struct mm_struct * swap_token_mm;