1 files changed, 11 insertions, 9 deletions

diff --git a/include/linux/swap.h b/include/linux/swap.h
index 1f59d9340c4d..ff4acea9bbdb 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,
@@ -285,6 +282,11 @@ 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