diff --git a/[refs] b/[refs]
index 88d06f5b382b..4a13f1cf4ca6 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 76d3fbf8fbf6cc78ceb63549e0e0c5bc8a88f838
+refs/heads/master: 72c4783210f77fd743f0a316858d33f27db51e7c
diff --git a/trunk/mm/page-writeback.c b/trunk/mm/page-writeback.c
index 31f698862420..919b45eb57ad 100644
--- a/trunk/mm/page-writeback.c
+++ b/trunk/mm/page-writeback.c
@@ -1405,10 +1405,6 @@ EXPORT_SYMBOL(test_set_page_writeback);
  */
 int mapping_tagged(struct address_space *mapping, int tag)
 {
-	int ret;
-	rcu_read_lock();
-	ret = radix_tree_tagged(&mapping->page_tree, tag);
-	rcu_read_unlock();
-	return ret;
+	return radix_tree_tagged(&mapping->page_tree, tag);
 }
 EXPORT_SYMBOL(mapping_tagged);