mm: vmscan: fix force-scanning small targets without swap

[linux-2.6.git] / mm / internal.h

diff --git a/mm/internal.h b/mm/internal.h
index 6a697bb97fc589fcdd71ad56a61d43f88862786b..d071d380fb498ab36ac6700343bf86485463bdbe 100644 (file)
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -62,10 +62,14 @@ extern bool is_free_buddy_page(struct page *page);
  */
 static inline unsigned long page_order(struct page *page)
 {
-       VM_BUG_ON(!PageBuddy(page));
+       /* PageBuddy() must be checked by the caller */
        return page_private(page);
 }
 
+/* mm/util.c */
+void __vma_link_list(struct mm_struct *mm, struct vm_area_struct *vma,
+               struct vm_area_struct *prev, struct rb_node *rb_parent);
+
 #ifdef CONFIG_MMU
 extern long mlock_vma_pages_range(struct vm_area_struct *vma,
                        unsigned long start, unsigned long end);
@@ -134,6 +138,10 @@ static inline void mlock_migrate_page(struct page *newpage, struct page *page)
        }
 }
 
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+extern unsigned long vma_address(struct page *page,
+                                struct vm_area_struct *vma);
+#endif
 #else /* !CONFIG_MMU */
 static inline int is_mlocked_vma(struct vm_area_struct *v, struct page *p)
 {
@@ -158,7 +166,7 @@ static inline struct page *mem_map_offset(struct page *base, int offset)
 }
 
 /*
- * Iterator over all subpages withing the maximally aligned gigantic
+ * Iterator over all subpages within the maximally aligned gigantic
  * page 'base'.  Handle any discontiguity in the mem_map.
  */
 static inline struct page *mem_map_next(struct page *iter,
@@ -241,10 +249,6 @@ static inline void mminit_validate_memmodel_limits(unsigned long *start_pfn,
 }
 #endif /* CONFIG_SPARSEMEM */
 
-int __get_user_pages(struct task_struct *tsk, struct mm_struct *mm,
-                    unsigned long start, int len, unsigned int foll_flags,
-                    struct page **pages, struct vm_area_struct **vmas);
-
 #define ZONE_RECLAIM_NOSCAN    -2
 #define ZONE_RECLAIM_FULL      -1
 #define ZONE_RECLAIM_SOME      0