2 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index 9c8d31bacf46..ccefff02b6cb 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -60,3 +60,9 @@ SUBSYS(net_cls)
 #endif
 
 /* */
+
+#ifdef CONFIG_BLK_CGROUP
+SUBSYS(blkio)
+#endif
+
+/* */
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index eb73632440f1..d61b0b8b5cd1 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -68,6 +68,10 @@ struct io_context {
         unsigned short ioprio;
         unsigned short ioprio_changed;
 
+#ifdef CONFIG_BLK_CGROUP
+        unsigned short cgroup_changed;
+#endif
+
         /*
          * For request batching
          */