diff options
Diffstat (limited to 'include/linux/swap.h')
| -rw-r--r-- | include/linux/swap.h | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index 1f59d9340c4..2fee51a11b7 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -146,11 +146,13 @@ enum { SWP_DISCARDING = (1 << 3), /* now discarding a free cluster */ SWP_SOLIDSTATE = (1 << 4), /* blkdev seeks are cheap */ SWP_CONTINUED = (1 << 5), /* swap_map has count continuation */ + SWP_BLKDEV = (1 << 6), /* its a block device */ /* add others here before... */ SWP_SCANNING = (1 << 8), /* refcount in scan_swap_map */ }; #define SWAP_CLUSTER_MAX 32 +#define COMPACT_CLUSTER_MAX SWAP_CLUSTER_MAX #define SWAP_MAP_MAX 0x3e /* Max duplication count, in first swap_map */ #define SWAP_MAP_BAD 0x3f /* Note pageblock is bad, in first swap_map */ @@ -223,20 +225,15 @@ static inline void lru_cache_add_anon(struct page *page) __lru_cache_add(page, LRU_INACTIVE_ANON); } -static inline void lru_cache_add_active_anon(struct page *page) -{ - __lru_cache_add(page, LRU_ACTIVE_ANON); -} - static inline void lru_cache_add_file(struct page *page) { __lru_cache_add(page, LRU_INACTIVE_FILE); } -static inline void lru_cache_add_active_file(struct page *page) -{ - __lru_cache_add(page, LRU_ACTIVE_FILE); -} +/* LRU Isolation modes. */ +#define ISOLATE_INACTIVE 0 /* Isolate inactive pages. */ +#define ISOLATE_ACTIVE 1 /* Isolate active pages. */ +#define ISOLATE_BOTH 2 /* Isolate both active and inactive pages. */ /* linux/mm/vmscan.c */ extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order, @@ -247,8 +244,7 @@ extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem, extern unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, gfp_t gfp_mask, bool noswap, unsigned int swappiness, - struct zone *zone, - int nid); + struct zone *zone); extern int __isolate_lru_page(struct page *page, int mode, int file); extern unsigned long shrink_all_memory(unsigned long nr_pages); extern int vm_swappiness; @@ -285,6 +281,11 @@ extern void kswapd_stop(int nid); extern int shmem_unuse(swp_entry_t entry, struct page *page); #endif /* CONFIG_MMU */ +#ifdef CONFIG_CGROUP_MEM_RES_CTLR +extern void mem_cgroup_get_shmem_target(struct inode *inode, pgoff_t pgoff, + struct page **pagep, swp_entry_t *ent); +#endif + extern void swap_unplug_io_fn(struct backing_dev_info *, struct page *); #ifdef CONFIG_SWAP @@ -314,7 +315,6 @@ extern long nr_swap_pages; extern long total_swap_pages; extern void si_swapinfo(struct sysinfo *); extern swp_entry_t get_swap_page(void); -extern swp_entry_t get_swap_page_of_type(int); extern int valid_swaphandles(swp_entry_t, unsigned long *); extern int add_swap_count_continuation(swp_entry_t, gfp_t); extern void swap_shmem_alloc(swp_entry_t); @@ -331,6 +331,13 @@ extern int reuse_swap_page(struct page *); extern int try_to_free_swap(struct page *); struct backing_dev_info; +#ifdef CONFIG_HIBERNATION +void hibernation_freeze_swap(void); +void hibernation_thaw_swap(void); +swp_entry_t get_swap_for_hibernation(int type); +void swap_free_for_hibernation(swp_entry_t val); +#endif + /* linux/mm/thrash.c */ extern struct mm_struct *swap_token_mm; extern void grab_swap_token(struct mm_struct *); |