Re: [RFC v2 13/13] keys/mktme: Support CPU Hotplug for MKTME keys

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On Mon, Dec 03, 2018 at 11:40:00PM -0800, Alison Schofield wrote:
>  static int mktme_program_system(struct mktme_key_program *key_program,
> -				cpumask_var_t mktme_cpumask)
> +				cpumask_var_t mktme_cpumask, int hotplug)
>  {
>  	struct mktme_hw_program_info info = {
>  		.key_program = key_program,
>  		.status = MKTME_PROG_SUCCESS,
>  	};
> -	get_online_cpus();
> -	on_each_cpu_mask(mktme_cpumask, mktme_program_package, &info, 1);
> -	put_online_cpus();
> +
> +	if (!hotplug) {
> +		get_online_cpus();
> +		on_each_cpu_mask(mktme_cpumask, mktme_program_package,
> +				 &info, 1);
> +		put_online_cpus();
> +	} else {
> +		on_each_cpu_mask(mktme_cpumask, mktme_program_package,
> +				 &info, 1);
> +	}
>  
>  	return info.status;
>  }

That is pretty horrible; and I think easily avoided.




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