Re: [PATCH v2] xen/smp: Use die_complete completion when taking CPU down

From: H. Peter Anvin
Date: Wed Oct 22 2014 - 11:37:33 EST


On 10/16/2014 09:47 AM, Boris Ostrovsky wrote:
> diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
> index 8cd27e0..a78c509 100644
> --- a/arch/x86/include/asm/smp.h
> +++ b/arch/x86/include/asm/smp.h
> @@ -149,7 +149,11 @@ static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
> smp_ops.send_call_func_ipi(mask);
> }
>
> +#ifdef CONFIG_HOTPLUG_CPU
> void cpu_disable_common(void);
> +void cpu_die_common(unsigned int cpu);
> +void play_dead_common(void);
> +#endif

We generally don't #ifdef prototypes unless they are inlines or macros
in the unconfiged case.

-hpa

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