1 files changed, 16 insertions, 11 deletions

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 9a72cc78e6b8..b6eae5e3144b 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -25,6 +25,7 @@ extern unsigned long max_mapnr;
 #endif
 
 extern unsigned long num_physpages;
+extern unsigned long totalram_pages;
 extern void * high_memory;
 extern int page_cluster;
 
@@ -103,6 +104,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_MIXEDMAP     0x10000000      /* Can contain "struct page" and pure PFN pages */
 #define VM_SAO          0x20000000      /* Strong Access Ordering (powerpc) */
 #define VM_PFN_AT_MMAP  0x40000000      /* PFNMAP vma that is fully mapped at mmap time */
+#define VM_MERGEABLE    0x80000000      /* KSM may merge identical pages */
 
 #ifndef VM_STACK_DEFAULT_FLAGS          /* arch can override this */
 #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS
@@ -283,6 +285,14 @@ static inline int is_vmalloc_addr(const void *x)
         return 0;
 #endif
 }
+#ifdef CONFIG_MMU
+extern int is_vmalloc_or_module_addr(const void *x);
+#else
+static int is_vmalloc_or_module_addr(const void *x)
+{
+        return 0;
+}
+#endif
 
 static inline struct page *compound_head(struct page *page)
 {
@@ -700,17 +710,8 @@ extern void pagefault_out_of_memory(void);
 
 extern void show_free_areas(void);
 
-#ifdef CONFIG_SHMEM
-extern int shmem_lock(struct file *file, int lock, struct user_struct *user);
-#else
-static inline int shmem_lock(struct file *file, int lock,
-                            struct user_struct *user)
-{
-        return 0;
-}
-#endif
+int shmem_lock(struct file *file, int lock, struct user_struct *user);
 struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags);
-
 int shmem_zero_setup(struct vm_area_struct *);
 
 #ifndef CONFIG_MMU
@@ -815,6 +816,7 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
                         struct page **pages, struct vm_area_struct **vmas);
 int get_user_pages_fast(unsigned long start, int nr_pages, int write,
                         struct page **pages);
+struct page *get_dump_page(unsigned long addr);
 
 extern int try_to_release_page(struct page * page, gfp_t gfp_mask);
 extern void do_invalidatepage(struct page *page, unsigned long offset);
@@ -1058,6 +1060,8 @@ extern void setup_per_cpu_pageset(void);
 static inline void setup_per_cpu_pageset(void) {}
 #endif
 
+extern void zone_pcp_update(struct zone *zone);
+
 /* nommu.c */
 extern atomic_long_t mmap_pages_allocated;
 
@@ -1226,7 +1230,8 @@ struct page *follow_page(struct vm_area_struct *, unsigned long address,
 #define FOLL_WRITE      0x01    /* check pte is writable */
 #define FOLL_TOUCH      0x02    /* mark page accessed */
 #define FOLL_GET        0x04    /* do get_page on page */
-#define FOLL_ANON       0x08    /* give ZERO_PAGE if no pgtable */
+#define FOLL_DUMP       0x08    /* give error on hole if it would be zero */
+#define FOLL_FORCE      0x10    /* get_user_pages read/write w/o permission */
 
 typedef int (*pte_fn_t)(pte_t *pte, pgtable_t token, unsigned long addr,
                         void *data);