diff options
Diffstat (limited to 'include/linux/swap.h')
| -rw-r--r-- | include/linux/swap.h | 38 |
1 files changed, 15 insertions, 23 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index 4f3838a..3ca5c4b 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -5,6 +5,7 @@ #include <linux/linkage.h> #include <linux/mmzone.h> #include <linux/list.h> +#include <linux/memcontrol.h> #include <linux/sched.h> #include <asm/atomic.h> @@ -158,9 +159,6 @@ struct swap_list_t { /* Swap 50% full? Release swapcache more aggressively.. */ #define vm_swap_full() (nr_swap_pages*2 < total_swap_pages) -/* linux/mm/memory.c */ -extern void swapin_readahead(swp_entry_t, unsigned long, struct vm_area_struct *); - /* linux/mm/page_alloc.c */ extern unsigned long totalram_pages; extern unsigned long totalreserve_pages; @@ -185,6 +183,9 @@ extern void swap_setup(void); /* linux/mm/vmscan.c */ extern unsigned long try_to_free_pages(struct zone **zones, int order, gfp_t gfp_mask); +extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem, + gfp_t gfp_mask); +extern int __isolate_lru_page(struct page *page, int mode); extern unsigned long shrink_all_memory(unsigned long nr_pages); extern int vm_swappiness; extern int remove_mapping(struct address_space *mapping, struct page *page); @@ -223,16 +224,17 @@ 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 *, gfp_t); +extern int add_to_swap_cache(struct page *, swp_entry_t, 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); -extern int move_from_swap_cache(struct page *, unsigned long, - struct address_space *); 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); -extern struct page * read_swap_cache_async(swp_entry_t, struct vm_area_struct *vma, - unsigned long addr); +extern struct page *lookup_swap_cache(swp_entry_t); +extern struct page *read_swap_cache_async(swp_entry_t, gfp_t, + struct vm_area_struct *vma, unsigned long addr); +extern struct page *swapin_readahead(swp_entry_t, gfp_t, + struct vm_area_struct *vma, unsigned long addr); + /* linux/mm/swapfile.c */ extern long total_swap_pages; extern unsigned int nr_swapfiles; @@ -306,7 +308,7 @@ static inline void swap_free(swp_entry_t swp) { } -static inline struct page *read_swap_cache_async(swp_entry_t swp, +static inline struct page *swapin_readahead(swp_entry_t swp, gfp_t gfp_mask, struct vm_area_struct *vma, unsigned long addr) { return NULL; @@ -317,22 +319,12 @@ static inline struct page *lookup_swap_cache(swp_entry_t swp) return NULL; } -static inline int valid_swaphandles(swp_entry_t entry, unsigned long *offset) -{ - return 0; -} - #define can_share_swap_page(p) (page_mapcount(p) == 1) -static inline int move_to_swap_cache(struct page *page, swp_entry_t entry) -{ - return 1; -} - -static inline int move_from_swap_cache(struct page *page, unsigned long index, - struct address_space *mapping) +static inline int add_to_swap_cache(struct page *page, swp_entry_t entry, + gfp_t gfp_mask) { - return 1; + return -1; } static inline void __delete_from_swap_cache(struct page *page) |
