diff --git a/[refs] b/[refs]
index 09023d8e7ea7..dfd9a5860b66 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4d5e80a76074786a49879ff482a83e72ad634606
+refs/heads/master: b50da39f51139f81b3115d0f9d8632507f802755
diff --git a/trunk/block/blk-cgroup.c b/trunk/block/blk-cgroup.c
index 4d625d28e070..3aec4cdc8968 100644
--- a/trunk/block/blk-cgroup.c
+++ b/trunk/block/blk-cgroup.c
@@ -552,6 +552,7 @@ u64 __blkg_prfill_rwstat(struct seq_file *sf, struct blkg_policy_data *pd,
 	seq_printf(sf, "%s Total %llu\n", dname, (unsigned long long)v);
 	return v;
 }
+EXPORT_SYMBOL_GPL(__blkg_prfill_rwstat);
 
 /**
  * blkg_prfill_stat - prfill callback for blkg_stat