linux-kernel - Re: [PATCH 0/2] sched: Address idle task vs pcpu kthread checks

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Message-ID: <YJu1NpMt3BcLYGHh@hirez.programming.kicks-ass.net>
Date:   Wed, 12 May 2021 13:00:06 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Valentin Schneider <valentin.schneider@....com>
Cc:     linux-kernel@...r.kernel.org, mingo@...nel.org, tglx@...utronix.de,
        bristot@...hat.com, yejune.deng@...il.com
Subject: Re: [PATCH 0/2] sched: Address idle task vs pcpu kthread checks

On Mon, May 10, 2021 at 04:10:22PM +0100, Valentin Schneider wrote:
> Note: I remember seeing some patch(es) from Peter tackling this exact
> problem, but I couldn't find them again.

Found it (by accident), yours is nicer though :-)

> Valentin Schneider (1):
>   sched: Make the idle task quack like a per-CPU kthread
> 
> Yejune Deng (1):
>   lib/smp_processor_id: Use is_percpu_thread() instead of
>     nr_cpus_allowed
> 
>  include/linux/kthread.h |  2 ++
>  kernel/kthread.c        | 30 ++++++++++++++++++------------
>  kernel/sched/core.c     | 21 +++++++++++++++------
>  lib/smp_processor_id.c  |  6 +-----
>  4 files changed, 36 insertions(+), 23 deletions(-)

Thanks!