diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 73ed5f3a862dfcde598227671d55c2491d33408b..f2fe692dda40485d282541680b20f8fdc85f256f 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -6067,7 +6067,7 @@ static ssize_t rbd_remove_single_major(struct bus_type *bus,
  * create control files in sysfs
  * /sys/bus/rbd/...
  */
-static int rbd_sysfs_init(void)
+static int __init rbd_sysfs_init(void)
 {
 	int ret;
 
@@ -6082,13 +6082,13 @@ static int rbd_sysfs_init(void)
 	return ret;
 }
 
-static void rbd_sysfs_cleanup(void)
+static void __exit rbd_sysfs_cleanup(void)
 {
 	bus_unregister(&rbd_bus_type);
 	device_unregister(&rbd_root_dev);
 }
 
-static int rbd_slab_init(void)
+static int __init rbd_slab_init(void)
 {
 	rbd_assert(!rbd_img_request_cache);
 	rbd_img_request_cache = KMEM_CACHE(rbd_img_request, 0);