linux-kernel - [PATCH 0/1] sched/deadline: Log Fair Server re-enablement

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Message-ID: <20260109031959.2786873-1-atomlin@atomlin.com>
Date: Thu,  8 Jan 2026 22:19:58 -0500
From: Aaron Tomlin <atomlin@...mlin.com>
To: mingo@...hat.com,
	peterz@...radead.org,
	juri.lelli@...hat.com,
	vincent.guittot@...aro.org,
	dietmar.eggemann@....com,
	rostedt@...dmis.org,
	bsegall@...gle.com,
	mgorman@...e.de,
	vschneid@...hat.com
Cc: sshegde@...ux.ibm.com,
	neelx@...e.com,
	sean@...e.io,
	mproche@...il.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/1] sched/deadline: Log Fair Server re-enablement

Hi Ingo, Peter, Juri, Vincent,

During a recent audit of the Fair Server related code, I observed that
whilst disabling the server via the debugfs interface emits a console
notification, re-enabling it remains silent. This patch rectifies that
asymmetry by ensuring a corresponding message is logged when runtime is
restored.

This omission was identified during the investigation and code review
following the recent discussion regarding
SCHED_FEAT(RT_SUPPRESS_FAIR_SERVER) [1]. Please note that this patch is
standalone and does not depend upon the aforementioned RFC patch.

[1]: https://lore.kernel.org/lkml/20260106034209.2703289-2-atomlin@atomlin.com/

Aaron Tomlin (1):
  sched/deadline: Log Fair Server re-enablement for symmetry with
    debugfs

 kernel/sched/deadline.c | 6 ++++++
 1 file changed, 6 insertions(+)

-- 
2.51.0