linux-kernel - Re: [PATCH v7 0/3] sched/rt: Move sched_rt_entity::back to CONFIG_RT_GROUP

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Message-ID: <cfabc096-105d-438c-8dbc-cfaad5d18a35@linux.dev>
Date:   Wed, 8 Nov 2023 19:04:03 +0800
From:   Yajun Deng <yajun.deng@...ux.dev>
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,
        bristot@...hat.com, vschneid@...hat.com
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 0/3] sched/rt: Move sched_rt_entity::back to
 CONFIG_RT_GROUP_SCHED


Kindly ping...

Thanks.


On 2023/10/9 20:22, Yajun Deng wrote:
> The member back in struct sched_rt_entity only related to RT_GROUP_SCHED,
> it should not place out of RT_GROUP_SCHED, move back to RT_GROUP_SCHED.
> It will save a few bytes.
>
> The 1st patch is introduce for_each_sched_rt_entity_back() & use it,
> it no functional changes.
>
> The 2nd patch is init 'back' in init_tg_rt_entry, it remove the call to
> back when CONFIG_RT_GROUP_SCHED is disabled.
>
> The 3rd patch is move sched_rt_entity::back to under the
> CONFIG_RT_GROUP_SCHED block, it will save a few bytes.
>
> Yajun Deng (3):
>    sched/rt: Introduce for_each_sched_rt_entity_back() & use it
>    sched/rt: Init 'back' in init_tg_rt_entry
>    sched/headers: Move sched_rt_entity::back to under the
>      CONFIG_RT_GROUP_SCHED block
>
>   include/linux/sched.h |  2 +-
>   kernel/sched/rt.c     | 17 ++++++++++++-----
>   2 files changed, 13 insertions(+), 6 deletions(-)
>