1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 8f5486964671..a905c4934a55 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -230,6 +230,7 @@ struct request {
         struct bio *biotail;
 
         struct hlist_node hash; /* merge hash */
+        struct rb_node rb_node; /* sort/lookup */
 
         void *elevator_private;
         void *completion_data;