diff options
Diffstat (limited to 'include/linux/swap.h')
| -rw-r--r-- | include/linux/swap.h | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index 556617bcf7ac..4a99e4a7fbf3 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -167,6 +167,7 @@ extern void FASTCALL(lru_cache_add_active(struct page *)); extern void FASTCALL(activate_page(struct page *)); extern void FASTCALL(mark_page_accessed(struct page *)); extern void lru_add_drain(void); +extern int lru_add_drain_all(void); extern int rotate_reclaimable_page(struct page *page); extern void swap_setup(void); @@ -175,6 +176,29 @@ extern int try_to_free_pages(struct zone **, gfp_t); extern int shrink_all_memory(int); extern int vm_swappiness; +#ifdef CONFIG_NUMA +extern int zone_reclaim_mode; +extern int zone_reclaim(struct zone *, gfp_t, unsigned int); +#else +#define zone_reclaim_mode 0 +static inline int zone_reclaim(struct zone *z, gfp_t mask, unsigned int order) +{ + return 0; +} +#endif + +#ifdef CONFIG_MIGRATION +extern int isolate_lru_page(struct page *p); +extern int putback_lru_pages(struct list_head *l); +extern int migrate_pages(struct list_head *l, struct list_head *t, + struct list_head *moved, struct list_head *failed); +#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; } +#endif + #ifdef CONFIG_MMU /* linux/mm/shmem.c */ extern int shmem_unuse(swp_entry_t entry, struct page *page); @@ -192,7 +216,7 @@ extern int rw_swap_page_sync(int, swp_entry_t, struct page *); extern struct address_space swapper_space; #define total_swapcache_pages swapper_space.nrpages extern void show_swap_cache_info(void); -extern int add_to_swap(struct page *); +extern int add_to_swap(struct page *, gfp_t); extern void __delete_from_swap_cache(struct page *); extern void delete_from_swap_cache(struct page *); extern int move_to_swap_cache(struct page *, swp_entry_t); |