X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fswap.h;h=3ca5c4bd6d3f5dc6002075c2097c76dbb4e78ad2;hb=6e5565f949af1322f8f3d3f43d044645ae448499;hp=4f3838adbb30626ec0e4df84a145e95f091b2aa6;hpb=fb9fc395174138983a49f2da982ed14caabbe741;p=linux-2.6

diff --git a/include/linux/swap.h b/include/linux/swap.h
index 4f3838adbb..3ca5c4bd6d 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)