1 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 80cd162a8aa6..5f981be61416 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -113,6 +113,16 @@ static inline void vma_unlock_anon_vma(struct vm_area_struct *vma)
                 spin_unlock(&anon_vma->lock);
 }
 
+static inline void anon_vma_lock(struct anon_vma *anon_vma)
+{
+        spin_lock(&anon_vma->lock);
+}
+
+static inline void anon_vma_unlock(struct anon_vma *anon_vma)
+{
+        spin_unlock(&anon_vma->lock);
+}
+
 /*
  * anon_vma helper functions.
  */