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-rw-r--r--include/linux/rmap.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 980094a527e..b019ae64e2a 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -164,6 +164,12 @@ 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);
+/*
+ * Called by migrate.c to remove migration ptes, but might be used more later.
+ */
+int rmap_walk(struct page *page, int (*rmap_one)(struct page *,
+ struct vm_area_struct *, unsigned long, void *), void *arg);
+
#else /* !CONFIG_MMU */
#define anon_vma_init() do {} while (0)