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From: Yury Norov <yury.norov@gmail.com>
To: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org,
	Heiko Carstens <hca@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Alexander Gordeev <agordeev@linux.ibm.com>,
	Christian Borntraeger <borntraeger@linux.ibm.com>,
	Sven Schnelle <svens@linux.ibm.com>,
	Hendrik Brueckner <brueckner@linux.ibm.com>
Cc: Yury Norov <yury.norov@gmail.com>, Christoph Hellwig <hch@lst.de>,
	Rasmus Villemoes <linux@rasmusvillemoes.dk>
Subject: [PATCH v2 09/13] s390: switch stop_machine_yield() to using cpumask_next_wrap()
Date: Tue, 28 Jan 2025 11:46:38 -0500	[thread overview]
Message-ID: <20250128164646.4009-10-yury.norov@gmail.com> (raw)
In-Reply-To: <20250128164646.4009-1-yury.norov@gmail.com>

Calling cpumask_next_wrap_old() with starting CPU equal to wrapping CPU
effectively means the request to find next CPU, wrapping around if needed.

cpumask_next_wrap() is the proper replacement for that.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
 arch/s390/kernel/processor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 42ca61909030..745649ad9779 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -72,7 +72,7 @@ void notrace stop_machine_yield(const struct cpumask *cpumask)
 	this_cpu = smp_processor_id();
 	if (__this_cpu_inc_return(cpu_relax_retry) >= spin_retry) {
 		__this_cpu_write(cpu_relax_retry, 0);
-		cpu = cpumask_next_wrap_old(this_cpu, cpumask, this_cpu, false);
+		cpu = cpumask_next_wrap(this_cpu, cpumask);
 		if (cpu >= nr_cpu_ids)
 			return;
 		if (arch_vcpu_is_preempted(cpu))
-- 
2.43.0


  parent reply	other threads:[~2025-01-28 16:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-28 16:46 [PATCH v2 00/13] cpumask: cleanup cpumask_next_wrap() implementation and usage Yury Norov
2025-01-28 16:46 ` [PATCH v2 05/13] cpumask: deprecate cpumask_next_wrap() Yury Norov
2025-01-28 16:46 ` [PATCH v2 06/13] cpumask: re-introduce cpumask_next{,_and}_wrap() Yury Norov
2025-01-28 16:46 ` Yury Norov [this message]
2025-02-24 21:18 ` [PATCH v2 00/13] cpumask: cleanup cpumask_next_wrap() implementation and usage Michael S. Tsirkin

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