1 files changed, 20 insertions, 1 deletions

diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 477841d29fce..cb0ba7032609 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -81,7 +81,19 @@ 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 try_to_unmap(struct page *, int ignore_refs);
+enum ttu_flags {
+        TTU_UNMAP = 0,                  /* unmap mode */
+        TTU_MIGRATION = 1,              /* migration mode */
+        TTU_MUNLOCK = 2,                /* munlock mode */
+        TTU_ACTION_MASK = 0xff,
+
+        TTU_IGNORE_MLOCK = (1 << 8),    /* ignore mlock */
+        TTU_IGNORE_ACCESS = (1 << 9),   /* don't age */
+        TTU_IGNORE_HWPOISON = (1 << 10),/* corrupted page is recoverable */
+};
+#define TTU_ACTION(x) ((x) & TTU_ACTION_MASK)
+
+int try_to_unmap(struct page *, enum ttu_flags flags);
 
 /*
  * Called from mm/filemap_xip.c to unmap empty zero page
@@ -108,6 +120,13 @@ int page_mkclean(struct page *);
  */
 int try_to_munlock(struct page *);
 
+/*
+ * Called by memory-failure.c to kill processes.
+ */
+struct anon_vma *page_lock_anon_vma(struct page *page);
+void page_unlock_anon_vma(struct anon_vma *anon_vma);
+int page_mapped_in_vma(struct page *page, struct vm_area_struct *vma);
+
 #else   /* !CONFIG_MMU */
 
 #define anon_vma_init()         do {} while (0)