linux-kernel - Re: [PATCH v3] sched_ext: Implement SCX_OPS_TRACK

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Message-ID: <20250627034334.19345-1-henry.hj@antgroup.com>
Date: Fri, 27 Jun 2025 11:43:34 +0800
From: "Henry Huang" <henry.hj@...group.com>
To: tj@...nel.org
Cc:  <arighi@...dia.com>,
   <changwoo@...lia.com>,
  "Henry Huang" <henry.hj@...group.com>,
  "谈鉴锋" <henry.tjf@...group.com>,
   <linux-kernel@...r.kernel.org>,
   <sched-ext@...ts.linux.dev>,
   <void@...ifault.com>,
  "Yan Yan(cailing)" <yanyan.yan@...group.com>
Subject: Re: [PATCH v3] sched_ext: Implement SCX_OPS_TRACK_MIGRATION

On Wed, 25 Jun 2025 13:07:04 -1000, Tejun Heo wrote:
> Even in such cases, wouldn't something like the following work?
>
> void my_running(struct task_struct *p)
> {
>         struct my_task_ctx *taskc;
>
>         if (!(taskc = lookup_task_ctx(p)))
>                 return;
>         if (taskc->cpu != scx_bpf_task_cpu(p)) {
>                 /* update other stuff */
>                 taskc->cpu = scx_bpf_task_cpu(p);
>         }
> }

Thank you for your reply. I will try it again and will reach out via
email if I have any other questions.

-- 
Henry