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From: Juri Lelli <juri.lelli@redhat.com>
To: Gabriele Monaco <gmonaco@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	linux-kernel@vger.kernel.org, jstultz@google.com,
	arighi@nvidia.com, soolaugust@gmail.com, suzhidao@xiaomi.com
Subject: Re: [PATCH] sched/deadline: Use revised wakeup rule only for running dl_server
Date: Mon, 25 May 2026 08:19:42 +0200	[thread overview]
Message-ID: <ahPp_pRBb3kGuwpZ@jlelli-thinkpadt14gen4.remote.csb> (raw)
In-Reply-To: <20260522125833.264145-1-gmonaco@redhat.com>

Hi!

On 22/05/26 14:58, Gabriele Monaco wrote:
> Commit 14a857056466 ("sched/deadline: Use revised wakeup rule for
> dl_server") applies the revised wakeup rule to any server, as a result
> servers that are not running (dl_defer_running == 0) and start with a
> deadline overflow get enqueued and can boost tasks as if they were
> running, invalidating the defer rule and the documented state model.
> 
> Apply the revised wakeup rule only for deferrable servers that are
> marked as running.
> 
> Fixes: 14a857056466 ("sched/deadline: Use revised wakeup rule for dl_server")
> Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
> ---

Makes sense to me.

Acked-by: Juri Lelli <juri.lelli@redhat.com>

Thanks,
Juri


  parent reply	other threads:[~2026-05-25  6:19 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-22 12:58 [PATCH] sched/deadline: Use revised wakeup rule only for running dl_server Gabriele Monaco
2026-05-22 20:58 ` Andrea Righi
2026-05-25  6:19 ` Juri Lelli [this message]
2026-07-29 13:27 ` Gabriele Monaco
2026-07-29 13:29   ` Gabriele Monaco
2026-07-29 14:52   ` Peter Zijlstra
2026-07-29 14:54     ` Gabriele Monaco
2026-07-29 19:18 ` John Stultz
2026-07-30 11:03 ` [tip: sched/urgent] " tip-bot2 for Gabriele Monaco

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