Re: [PATCH V2 1/3] Sched: Scheduler time slice extension

[Prakash Sangappa <prakash.sangappa@oracle.com>]

> On Apr 24, 2025, at 8:48 PM, K Prateek Nayak <kprateek.nayak@amd.com> wrote:
> 
> Hello Prakash,
> 
> On 4/25/2025 6:49 AM, Prakash Sangappa wrote:
>>>> static void hrtick_clear(struct rq *rq)
>>>> {
>>>> + rseq_delay_resched_tick();
>>> This is called from __schedule(). If you set the need-resched flag here,
>>> it gets removed shortly after. Do I miss something?
>> hrtick_clear() is also called when the cpu is being removed in sched_cpu_dying().
>> We need to set resched there?
> 
> sched_cpu_dying() is called from the cpuhp thread which will go away
> once the hotplug is done and shouldn't need this. Furthermore, cpuhp
> thread will not use the "rseq_sched_delay" API so removing this should
> be fine.

Ok, I can make that change.
Thanks,
Prakash

> 
> -- 
> Thanks and Regards,
> Prateek
>