Re: [RFC][PATCH 3/3] sched/eevdf: Fix sched idle task group preemption

[Kayra Cizmeci]

On Thu, Nov 05, 2026 at 05:55:28PM +0100, Peter Zijlstra wrote:
> From: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
> 
> Even with flat hierarchy which puts all runnable tasks in the same cfs rq,
> we need to parse the hierarchy to check for sched_idle task group.
> 
> Fixes: 85570f10a4c6 ("sched/eevdf: Move to a single runqueue")
> Reported-by: Jakub Okoński <jakub@xxxxxxxxxxx>
> Signed-off-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> Link: https://lore.kernel.org/all/58dc8e8a-7260-43ce-aebb-8d9c29a6afc9@xxxxxxxxxxx/
> Link: https://patch.msgid.link/20261019182622.1584454-1-vincent.guittot@xxxxxxxxxx

My first old concern is solved. So..

(Dramatic Wait With A Really Serious Song)

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Reviewed-by: Kayra Cizmeci <kayracizmeci@xxxxxxxxx>