sched/eevdf: Always update slice protection

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Even if p will not preempt current, it modifies the avg_vruntime and
possibly the min slice. Make sure to update the slice protection with the
updated figures. As an example, Batch and Sched Idle tasks can otherwise
get a larger lag than their slice and finaly delay the scheduling of a
normal task, which deadline will be a later.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: K Prateek Nayak <kprateek.nayak@amd.com>
Link: https://patch.msgid.link/20260624151229.1710703-6-vincent.guittot@linaro.org

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Vincent Guittot 2026-06-24 17:12:28 +02:00 • committed by Peter Zijlstra

parent ba0d3bf5f9

commit 7cd2ef17de

1 changed files with 6 additions and 5 deletions

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kernel/sched/fair.c

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