Re: [PATCH 1/4] rcu/nocb: Pass a cpumask instead of a single CPU to offload/deoffload

[Frederic Weisbecker]

On Thu, May 26, 2022 at 12:10:52AM +0200, Frederic Weisbecker wrote:
> @@ -1117,12 +1111,6 @@ static long rcu_nocb_rdp_offload(void *arg)
>  	struct rcu_data *rdp_gp = rdp->nocb_gp_rdp;
>  
>  	WARN_ON_ONCE(rdp->cpu != raw_smp_processor_id());
> -	/*
> -	 * For now we only support re-offload, ie: the rdp must have been
> -	 * offloaded on boot first.
> -	 */
> -	if (!rdp->nocb_gp_rdp)
> -		return -EINVAL;
>  
>  	if (WARN_ON_ONCE(!rdp_gp->nocb_gp_kthread))
>  		return -EINVAL;

And why did I remove this critical check? I have no answer...