Re: [PATCH 5/5] sched: Rework sched_class::wakeup_preempt() and rq_modified_*()

[Andrea Righi <arighi@nvidia.com>]

Hi Peter,

On Thu, Nov 27, 2025 at 04:39:48PM +0100, Peter Zijlstra wrote:
...
> --- a/kernel/sched/sched.h
> +++ b/kernel/sched/sched.h
> @@ -1119,7 +1119,6 @@ struct rq {
>  	raw_spinlock_t		__lock;
>  
>  	/* Per class runqueue modification mask; bits in class order. */

We should probably remove this comment as well along with queue_mask.

Thanks,
-Andrea

> -	unsigned int		queue_mask;
>  	unsigned int		nr_running;
>  #ifdef CONFIG_NUMA_BALANCING
>  	unsigned int		nr_numa_running;
> @@ -1179,6 +1178,7 @@ struct rq {
>  	struct sched_dl_entity	*dl_server;
>  	struct task_struct	*idle;
>  	struct task_struct	*stop;
> +	const struct sched_class *next_class;
>  	unsigned long		next_balance;
>  	struct mm_struct	*prev_mm;
>