Re: [PATCH] sched/fair: Restore RCU read lock in set_cpu_sd_state_{busy,idle}()

[K Prateek Nayak]

Hello Andrea,

On 5/22/2026 2:21 AM, Andrea Righi wrote:
> @@ -14070,6 +14070,8 @@ static void nohz_balancer_kick(struct rq *rq)
>  static void set_cpu_sd_state_busy(int cpu)
>  {
>  	struct sched_domain *sd;
> +
> +	rcu_read_lock();

guard(rcu)() saves on the need for an unlock label but this works fine
too. Feel free to include:

Reviewed-by: K Prateek Nayak <kprateek.nayak@xxxxxxx>

>  	sd = rcu_dereference_all(per_cpu(sd_llc, cpu));
>  
>  	/*
-- 
Thanks and Regards,
Prateek