Re: [PATCH] sched/eevdf: Fix augmented max_slice

From: K Prateek Nayak

Date: Mon Sep 07 2026 - 22:58:30 EST


Hello Vincent,

On 9/7/2026 6:08 PM, Vincent Guittot wrote:
> Similarly to se->min_slice, init se->max_slice with se->slice before
> enqueueing the entity so the augmented callback computes it correctly
> at parent level.
>
> Fixes: 6e3c0a4e1ad1 ("sched/fair: Fix lag clamp")
> Signed-off-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>

Feel free to include:

Reviewed-by: K Prateek Nayak <kprateek.nayak@xxxxxxx>

> ---
> kernel/sched/fair.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index b8bd308c2d5b..5d819918e870 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -1073,6 +1073,8 @@ static void __enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se)
> sum_w_vruntime_add(cfs_rq, se);
> se->min_vruntime = se->vruntime;
> se->min_slice = se->slice;
> + se->max_slice = se->slice;
> +
> rb_add_augmented_cached(&se->run_node, &cfs_rq->tasks_timeline,
> __entity_less, &min_vruntime_cb);
> }

--
Thanks and Regards,
Prateek