ksm: let shared pages be swappable

[mv-sheeva.git] / include / linux / rmap.h

diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 1f65af44c6d2d29f3b1f0c7458821ff4caf9541f..0b4913a4a3447eda5a750665501e79e8025c4c4c 100644 (file)
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -89,6 +89,9 @@ static inline void page_dup_rmap(struct page *page)
  */
 int page_referenced(struct page *, int is_locked,
                        struct mem_cgroup *cnt, unsigned long *vm_flags);
+int page_referenced_one(struct page *, struct vm_area_struct *,
+       unsigned long address, unsigned int *mapcount, unsigned long *vm_flags);
+
 enum ttu_flags {
        TTU_UNMAP = 0,                  /* unmap mode */
        TTU_MIGRATION = 1,              /* migration mode */
@@ -102,6 +105,8 @@ enum ttu_flags {
 #define TTU_ACTION(x) ((x) & TTU_ACTION_MASK)
 
 int try_to_unmap(struct page *, enum ttu_flags flags);
+int try_to_unmap_one(struct page *, struct vm_area_struct *,
+                       unsigned long address, enum ttu_flags flags);
 
 /*
  * Called from mm/filemap_xip.c to unmap empty zero page