1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 9c5a04f6114c..b3370ef5164d 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -3,6 +3,8 @@
 
 #include <linux/percpu.h>
 
+#ifdef CONFIG_BLOCK
+
 typedef int (elevator_merge_fn) (request_queue_t *, struct request **,
                                  struct bio *);
 
@@ -203,4 +205,5 @@ enum {
         __val;                                                  \
 })
 
+#endif /* CONFIG_BLOCK */
 #endif