linux-kernel - [PATCH 0/6] sched/deadline, (rt): Sched class cleanups

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Message-Id: <20220302183433.333029-1-dietmar.eggemann@arm.com>
Date:   Wed,  2 Mar 2022 19:34:27 +0100
From:   Dietmar Eggemann <dietmar.eggemann@....com>
To:     Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Daniel Bristot de Oliveira <bristot@...hat.com>
Cc:     Vincent Guittot <vincent.guittot@...aro.org>,
        Mel Gorman <mgorman@...e.de>, Ben Segall <bsegall@...gle.com>,
        Luca Abeni <luca.abeni@...tannapisa.it>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 0/6] sched/deadline, (rt): Sched class cleanups

While trying to improve the Deadline sched class behaviour for
asymmetric CPU capacity systems I came across some possible
cleanups for DL (and RT).

Overview:

[PATCH 1/6] - Remove `struct dl_bandwidth def_dl_bandwidth`.

[PATCH 2/6] - Move functions into DL sched class which don't have to
              be exported.

[PATCH 3/6] - Merge two DL admission control functions which provide
              very similar functionality.

[PATCH 4/6] - Use DL rb_entry() macros and cached rbtree wrapper
              `rb_first_cached()` consistently.

[PATCH 5/6] - Remove unused !CONFIG_SMP function definitions in DL/RT.

[PATCH 6/6] - Remove redundant function parameter in DL/RT.

Dietmar Eggemann (6):
  sched/deadline: Remove unused def_dl_bandwidth
  sched/deadline: Move bandwidth mgmt and reclaim functions into sched
    class source file
  sched/deadline: Merge dl_task_can_attach() and dl_cpu_busy()
  sched/deadline: Use __node_2_[pdl|dle]() and rb_first_cached()
    consistently
  sched/deadline,rt: Remove unused functions for !CONFIG_SMP
  sched/deadline,rt: Remove unused parameter from
    pick_next_[rt|dl]_entity()

 kernel/sched/core.c     |  14 ++--
 kernel/sched/deadline.c | 141 ++++++++++++++++++++--------------------
 kernel/sched/rt.c       |  16 +----
 kernel/sched/sched.h    |  53 +--------------
 4 files changed, 84 insertions(+), 140 deletions(-)

-- 
2.25.1