Memory controller: add per cgroup LRU and reclaim

[linux-2.6] / include / linux / swap.h

diff --git a/include/linux/swap.h b/include/linux/swap.h
index 16fd1209e9fa02dd0964096cb1336a62bf2704a4..4d91bc0e0fd54553e696cc3b548dfaae93bdcf7a 100644 (file)
--- 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>
@@ -182,6 +183,8 @@ 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);
+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);
@@ -220,11 +223,9 @@ 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);
@@ -319,15 +320,10 @@ static inline struct page *lookup_swap_cache(swp_entry_t swp)
 
 #define can_share_swap_page(p)                 (page_mapcount(p) == 1)
 
-static inline int move_to_swap_cache(struct page *page, swp_entry_t entry)
+static inline int add_to_swap_cache(struct page *page, swp_entry_t entry,
+                                                       gfp_t gfp_mask)
 {
-       return 1;
-}
-
-static inline int move_from_swap_cache(struct page *page, unsigned long index,
-                                       struct address_space *mapping)
-{
-       return 1;
+       return -1;
 }
 
 static inline void __delete_from_swap_cache(struct page *page)