linux-kernel - [PATCH 0/3] sched/deadline: fixes and improvements

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Message-ID: <20240722132935.14426-1-wander@redhat.com>
Date: Mon, 22 Jul 2024 10:29:24 -0300
From: Wander Lairson Costa <wander@...hat.com>
To: Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Juri Lelli <juri.lelli@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ben Segall <bsegall@...gle.com>,
	Mel Gorman <mgorman@...e.de>,
	Valentin Schneider <vschneid@...hat.com>,
	linux-kernel@...r.kernel.org (open list:SCHEDULER)
Cc: Wander Lairson Costa <wander@...hat.com>
Subject: [PATCH 0/3] sched/deadline: fixes and improvements

Hello,

This patch series addresses specific issues and improvements within
the scheduler's deadline (DL) class. The patches aim to fix warnings,
remove redundant checks, and consolidate timer cancellation logic for
better consistency and code quality.

Patch 1: Fix warning in migrate_enable for boosted tasks

Fix a warning caused by unnecessary calls to setup_new_dl_entity for
boosted tasks during CPU migate_enable calls.

Patch 2: sched/deadline: avoid redundant check for boosted task

Remove redundant WARN_ON check in enqueue_dl_entity, as boosted tasks
do not require setup_new_dl_entity.

Patch 3: sched/deadline: Consolidate Timer Cancellation

Consolidate timer cancellation logic into dedicated functions,
ensuring consistent behavior and reducing code duplication.

Wander Lairson Costa (3):
  sched/deadline: Fix warning in migrate_enable for boosted tasks
  sched/deadline: avoid redundant check for boosted task
  sched/deadline: Consolidate Timer Cancellation

 kernel/sched/deadline.c | 56 +++++++++++++++++++++++++++--------------
 1 file changed, 37 insertions(+), 19 deletions(-)

-- 
2.45.2