From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-kernel@vger.kernel.org
Cc: tglx@linutronix.de, Peter Zijlstra <peterz@infradead.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@kernel.org>,
Karol Herbst <karolherbst@gmail.com>,
Pekka Paalanen <ppaalanen@gmail.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Andy Lutomirski <luto@kernel.org>, Borislav Petkov <bp@alien8.de>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
nouveau@lists.freedesktop.org
Subject: [Nouveau] [PATCH 06/38] x86/mmiotrace: Replace deprecated CPU-hotplug functions.
Date: Tue, 3 Aug 2021 16:15:49 +0200 [thread overview]
Message-ID: <20210803141621.780504-7-bigeasy@linutronix.de> (raw)
In-Reply-To: <20210803141621.780504-1-bigeasy@linutronix.de>
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: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Karol Herbst <karolherbst@gmail.com>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: x86@kernel.org
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: nouveau@lists.freedesktop.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
arch/x86/mm/mmio-mod.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
index cd768dafca9e9..933a2ebad471b 100644
--- a/arch/x86/mm/mmio-mod.c
+++ b/arch/x86/mm/mmio-mod.c
@@ -376,12 +376,12 @@ static void enter_uniprocessor(void)
goto out;
}
- get_online_cpus();
+ cpus_read_lock();
cpumask_copy(downed_cpus, cpu_online_mask);
cpumask_clear_cpu(cpumask_first(cpu_online_mask), downed_cpus);
if (num_online_cpus() > 1)
pr_notice("Disabling non-boot CPUs...\n");
- put_online_cpus();
+ cpus_read_unlock();
for_each_cpu(cpu, downed_cpus) {
err = remove_cpu(cpu);
--
2.32.0
next prev parent reply other threads:[~2021-08-03 14:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-03 14:15 [Nouveau] [PATCH 00/38] Replace deprecated CPU-hotplug Sebastian Andrzej Siewior
2021-08-03 14:15 ` Sebastian Andrzej Siewior [this message]
2021-08-03 15:03 ` [Nouveau] [PATCH 06/38] x86/mmiotrace: Replace deprecated CPU-hotplug functions Karol Herbst
2021-08-04 1:07 ` Steven Rostedt
2021-08-03 15:30 ` [Nouveau] [PATCH 00/38] Replace deprecated CPU-hotplug Hans de Goede
2021-08-03 16:10 ` Sebastian Andrzej Siewior
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