sched: Deadline has dynamic priority

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[ Upstream commit e008ec6c79 ]

While FIFO/RR have static priority, DEADLINE is a dynamic priority
scheme. Notably it has static priority -1. Do not assume the priority
doesn't change for deadline tasks just because the static priority
doesn't change.

This ensures DL always sees {DE,EN}QUEUE_MOVE where appropriate.

Fixes: ff77e46853 ("sched/rt: Fix PI handling vs. sched_setscheduler()")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Pierre Gondois <pierre.gondois@arm.com>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Link: https://patch.msgid.link/20260114130528.GB831285@noisy.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Peter Zijlstra 2026-01-15 09:25:37 +01:00 • committed by Greg Kroah-Hartman

parent f32d9e475a

commit 0754d5caac

2 changed files with 2 additions and 2 deletions

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kernel/sched/core.c

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kernel/sched/syscalls.c

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