Re: [PATCH v2 2/2] sched/cache: Drive cache task tick from execution context

[Tim Chen]

On Thu, 2026-09-03 at 12:11 +0800, Hui Su wrote:
> 

[snip]

>  void init_sched_mm(struct task_struct *p) { }
>  
> -static void task_tick_cache(struct rq *rq, struct task_struct *p) { }
> +void task_tick_cache(struct rq *rq, struct task_struct *p) { }
>  
>  static inline int get_pref_llc(struct task_struct *p,
>  			       struct mm_struct *mm)
> @@ -15042,8 +15042,6 @@ static void task_tick_fair(struct rq *rq, struct task_struct *curr, int queued)
>  	if (queued)
>  		return;
>  
> -	task_tick_cache(rq, curr);
> -

May be worth adding a comment here. Say you consolidate the
exec context stuff to a new sched_tick_exec_ctx() helper.
You can say something like the following here to help future
reader of this code.

+       /*
+        * Note: misfit, overutilized and core scheduling state describe the
+        * entity the load balancer would move, i.e. the scheduling context,
+        * and therefore stay with @curr rather than with rq->curr. See
+        * sched_tick_exec_ctx() for the execution context counterpart.
+        */
>  	update_misfit_status(curr, rq);
>  	check_update_overutilized_status(task_rq(curr));

Tim