sched: Replace deprecated CPU-hotplug functions.

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

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 433b400..d67c5dd 100644 (file)
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -9840,7 +9840,7 @@ 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)
@@ -9884,7 +9884,7 @@ 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;
 }