linux-kernel - [PATCH 05/38] s390/sclp: Replace deprecated CPU-hotplug functions.

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Date:   Tue,  3 Aug 2021 16:15:48 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     linux-kernel@...r.kernel.org
Cc:     tglx@...utronix.de, Peter Zijlstra <peterz@...radead.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        linux-s390@...r.kernel.org
Subject: [PATCH 05/38] s390/sclp: 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.

Cc: Heiko Carstens <hca@...ux.ibm.com>
Cc: Vasily Gorbik <gor@...ux.ibm.com>
Cc: Christian Borntraeger <borntraeger@...ibm.com>
Cc: linux-s390@...r.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
---
 drivers/s390/char/sclp_config.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c
index 039b2074db7e5..c365110f2daec 100644
--- a/drivers/s390/char/sclp_config.c
+++ b/drivers/s390/char/sclp_config.c
@@ -50,12 +50,12 @@ static void sclp_cpu_capability_notify(struct work_struct *work)
 
 	s390_update_cpu_mhz();
 	pr_info("CPU capability may have changed\n");
-	get_online_cpus();
+	cpus_read_lock();
 	for_each_online_cpu(cpu) {
 		dev = get_cpu_device(cpu);
 		kobject_uevent(&dev->kobj, KOBJ_CHANGE);
 	}
-	put_online_cpus();
+	cpus_read_unlock();
 }
 
 static void __ref sclp_cpu_change_notify(struct work_struct *work)
-- 
2.32.0