From: weiping zhang <zhangweiping@didichuxing.com>
Date: Mon, 11 Dec 2017 22:56:25 +0800
Subject: [PATCH] blk-throttle: export io_serviced_recursive,
Git-commit: 17534c6f2c065ad8e34ff6f013e5afaa90428512
Patch-mainline: v4.16-rc1
References: bsc#1104967,FATE#325924
 io_service_bytes_recursive

export these two interface for cgroup-v1.

Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
 block/blk-throttle.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 825bc29767e6..e8428417ac0a 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -1510,11 +1510,21 @@ static struct cftype throtl_legacy_files[] = {
 		.private = (unsigned long)&blkcg_policy_throtl,
 		.seq_show = blkg_print_stat_bytes,
 	},
+	{
+		.name = "throttle.io_service_bytes_recursive",
+		.private = (unsigned long)&blkcg_policy_throtl,
+		.seq_show = blkg_print_stat_bytes_recursive,
+	},
 	{
 		.name = "throttle.io_serviced",
 		.private = (unsigned long)&blkcg_policy_throtl,
 		.seq_show = blkg_print_stat_ios,
 	},
+	{
+		.name = "throttle.io_serviced_recursive",
+		.private = (unsigned long)&blkcg_policy_throtl,
+		.seq_show = blkg_print_stat_ios_recursive,
+	},
 	{ }	/* terminate */
 };
 
-- 
2.16.4