linux-kernel - [PATCH v4 0/4] sched: Miscellaneous isolation related cleanups

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Message-ID: <20240921190720.106195-1-longman@redhat.com>
Date: Sat, 21 Sep 2024 15:07:16 -0400
From: Waiman Long <longman@...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>,
	Frederic Weisbecker <frederic@...nel.org>
Cc: linux-kernel@...r.kernel.org,
	Phil Auld <pauld@...hat.com>,
	Waiman Long <longman@...hat.com>
Subject: [PATCH v4 0/4] sched: Miscellaneous isolation related cleanups

 v4:
  - Make "isolcpus=nohz" equivalent to "nohz_full" as suggested by
    Federic.
  - Update the scheduler code to use HK_TYPE_KERNEL_NOISE.

 v3:
  - Fix incorrect housekeeping_nohz_full_setup() flags setting.

 v2:
  - Remove HK_TYPE_SCHED and related dead code
  - Change consolidated name from HK_TYPE_NOHZ_FULL to
    HK_TYPE_KERNEL_NOSISE as suggested by Frederic and update
    isolation.c as well.

This series contains a number of miscellaneous sched/isolation related
cleanups. Other than reducing the number of cpumasks in the housekeeping
structure, there should be no other functional change.

[v1] https://lore.kernel.org/lkml/20240818234520.90186-1-longman@redhat.com/
[v2] https://lore.kernel.org/lkml/20240904171441.1048072-1-longman@redhat.com/
[v3] https://lore.kernel.org/lkml/20240904183650.1053708-1-longman@redhat.com/

Waiman Long (4):
  sched/core: Remove HK_TYPE_SCHED
  sched/isolation: Make "isolcpus=nohz" equivalent to "nohz_full"
  sched/isolation: Consolidate housekeeping cpumasks that are always
    identical
  sched: Unify HK_TYPE_{TIMER|TICK|MISC} to HK_TYPE_KERNEL_NOISE

 .../admin-guide/kernel-parameters.txt         |  4 +++-
 include/linux/sched/isolation.h               | 21 +++++++++++-------
 kernel/sched/core.c                           | 12 +++++-----
 kernel/sched/fair.c                           | 19 +++-------------
 kernel/sched/isolation.c                      | 22 ++++++++-----------
 5 files changed, 34 insertions(+), 44 deletions(-)

-- 
2.43.5