diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index 1b73882..2070053 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -93,6 +93,8 @@
 enum blkcg_file_name_throtl {
 	BLKIO_THROTL_read_bps_device,
 	BLKIO_THROTL_write_bps_device,
+	BLKIO_THROTL_read_iops_device,
+	BLKIO_THROTL_write_iops_device,
 	BLKIO_THROTL_io_service_bytes,
 	BLKIO_THROTL_io_serviced,
 };
@@ -168,6 +170,7 @@
 		 * by file type "fileid".
 		 */
 		u64 bps;
+		unsigned int iops;
 	} val;
 };
 
@@ -177,6 +180,10 @@
 				     dev_t dev);
 extern uint64_t blkcg_get_write_bps(struct blkio_cgroup *blkcg,
 				     dev_t dev);
+extern unsigned int blkcg_get_read_iops(struct blkio_cgroup *blkcg,
+				     dev_t dev);
+extern unsigned int blkcg_get_write_iops(struct blkio_cgroup *blkcg,
+				     dev_t dev);
 
 typedef void (blkio_unlink_group_fn) (void *key, struct blkio_group *blkg);
 typedef void (blkio_update_group_weight_fn) (struct blkio_group *blkg,
@@ -185,12 +192,18 @@
 						u64 read_bps);
 typedef void (blkio_update_group_write_bps_fn) (struct blkio_group *blkg,
 						u64 write_bps);
+typedef void (blkio_update_group_read_iops_fn) (struct blkio_group *blkg,
+						unsigned int read_iops);
+typedef void (blkio_update_group_write_iops_fn) (struct blkio_group *blkg,
+						unsigned int write_iops);
 
 struct blkio_policy_ops {
 	blkio_unlink_group_fn *blkio_unlink_group_fn;
 	blkio_update_group_weight_fn *blkio_update_group_weight_fn;
 	blkio_update_group_read_bps_fn *blkio_update_group_read_bps_fn;
 	blkio_update_group_write_bps_fn *blkio_update_group_write_bps_fn;
+	blkio_update_group_read_iops_fn *blkio_update_group_read_iops_fn;
+	blkio_update_group_write_iops_fn *blkio_update_group_write_iops_fn;
 };
 
 struct blkio_policy_type {