sched/eevdf: Take into account current's lag when updating slice protection

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Take into account the lag of current task when updating the slice
protection in order to ensure that the absolute value of lags will remain
in the range [0 : slice+tick]
A task that already has a negative lag will see its protection reduced
whereas a task with positive lag will keep a full slice protection.

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/20260624151229.1710703-3-vincent.guittot@linaro.org

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Vincent Guittot 2026-06-24 17:12:25 +02:00 • committed by Peter Zijlstra

parent 8f97b627ff

commit 49f87b4d0b

1 changed files with 2 additions and 1 deletions

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kernel/sched/fair.c

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