linux-kernel - Re: [PATCH] sched_ext: switch class when preempted by higher priority scheduler

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Message-ID: <53f2972d-bbec-4fc4-af52-726c17f8c0ee@126.com>
Date: Wed, 8 Jan 2025 09:50:38 +0800
From: Honglei Wang <jameshongleiwang@....com>
To: Tejun Heo <tj@...nel.org>
Cc: void@...ifault.com, arighi@...dia.com, changwoo@...lia.com,
 mingo@...hat.com, peterz@...radead.org, juri.lelli@...hat.com,
 vincent.guittot@...aro.org, dietmar.eggemann@....com, rostedt@...dmis.org,
 bsegall@...gle.com, mgorman@...e.de, vschneid@...hat.com,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sched_ext: switch class when preempted by higher priority
 scheduler



On 2025/1/8 04:34, Tejun Heo wrote:
> Hello, Honglei.
> 
> On Tue, Jan 07, 2025 at 09:46:05AM +0800, Honglei Wang wrote:
>> It might be helpful to give BPF Scheduler a chance to invoke
>> cpu_release() function, if defined, when preempted by a higher
>> priority scheduler class task.
>>
>> Signed-off-by: Honglei Wang <jameshongleiwang@....com>
> 
> Can you update the patch description indicating that this is a bug fix?
> ops.cpu_release() must be invoked in this case but is being skipped.
> 
> Thanks.
> 
OK, will send a update later.

Thanks,
Honglei