From 9c5db302ce41326b9d8726af5582047bc16a507c Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 3 Aug 2021 16:16:15 +0200
Subject: [PATCH] sched: Replace deprecated CPU-hotplug functions.

Patch-mainline: v5.15-rc1
References: bsc#1189999 (Scheduler functional and performance backports)
Git-commit: 746f5ea9c4283d98353c1cd41864aec475e0edbd

The functions get_online_cpus() and put_online_cpus() have been
deprecated during the CPU hotplug rework. They map directly to
cpus_read_lock() and cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210803141621.780504-33-bigeasy@linutronix.de
Signed-off-by: Mel Gorman <mgorman@suse.de>
---
 kernel/sched/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 0775770062db..4817449fd42c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -9991,7 +9991,7 @@ static int tg_set_cfs_bandwidth(struct task_group *tg, u64 period, u64 quota,
 	 * Prevent race between setting of cfs_rq->runtime_enabled and
 	 * unthrottle_offline_cfs_rqs().
 	 */
-	get_online_cpus();
+	cpus_read_lock();
 	mutex_lock(&cfs_constraints_mutex);
 	ret = __cfs_schedulable(tg, period, quota);
 	if (ret)
@@ -10035,7 +10035,7 @@ static int tg_set_cfs_bandwidth(struct task_group *tg, u64 period, u64 quota,
 		cfs_bandwidth_usage_dec();
 out_unlock:
 	mutex_unlock(&cfs_constraints_mutex);
-	put_online_cpus();
+	cpus_read_unlock();
 
 	return ret;
 }