Messages in this thread Patch in this message | | | Date | Tue, 29 Jun 2021 14:35:13 -0000 | From | Thomas Gleixner <> | Subject | [GIT pull] smp/core for v5.14-rc1 |
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Linus,
please pull the latest smp/core branch from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git smp-core-2021-06-29
up to: 130708331bc6: cpu/hotplug: Simplify access to percpu cpuhp_state
A simple cleanup for the CPU hotplug code to avoid per_cpu_ptr() reevaluation.
Thanks,
tglx
------------------> Yuan ZhaoXiong (1): cpu/hotplug: Simplify access to percpu cpuhp_state
kernel/cpu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/cpu.c b/kernel/cpu.c index e538518556f4..2942cb4644c5 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -961,7 +961,7 @@ static int takedown_cpu(unsigned int cpu) int err; /* Park the smpboot threads */ - kthread_park(per_cpu_ptr(&cpuhp_state, cpu)->thread); + kthread_park(st->thread); /* * Prevent irq alloc/free while the dying cpu reorganizes the @@ -977,7 +977,7 @@ static int takedown_cpu(unsigned int cpu) /* CPU refused to die */ irq_unlock_sparse(); /* Unpark the hotplug thread so we can rollback there */ - kthread_unpark(per_cpu_ptr(&cpuhp_state, cpu)->thread); + kthread_unpark(st->thread); return err; } BUG_ON(cpu_online(cpu));
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