linux-kernel - Re: [PATCH v2 2/7] sched: Introduce task_is

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Message-ID: <CAMuHMdWg=Z47A=WEQegn9W_FU-WFDWvmNOWDVm5Kge=d_-GYhA@mail.gmail.com>
Date:   Fri, 11 Jun 2021 10:49:56 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        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>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Borislav Petkov <bp@...en8.de>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>, Jens Axboe <axboe@...nel.dk>,
        Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
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        Jason Wessel <jason.wessel@...driver.com>,
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        Pavel Machek <pavel@....cz>, Will Deacon <will@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Boqun Feng <boqun.feng@...il.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Davidlohr Bueso <dave@...olabs.net>,
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        Paolo Bonzini <pbonzini@...hat.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux-Arch <linux-arch@...r.kernel.org>
Subject: Re: [PATCH v2 2/7] sched: Introduce task_is_running()

Hoi Peter,

Thanks for your patch!

On Fri, Jun 11, 2021 at 10:36 AM Peter Zijlstra <peterz@...radead.org> wrote:
> Replace a bunch of 'p->state == TASK_RUNNING' with a new helper:
> task_is_running(p).

You're also sticking a READ_ONCE() in the helper, which wasn't done
by any of the old implementations? Care to mention why?

> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
> Acked-by: Davidlohr Bueso <dave@...olabs.net>

>  arch/m68k/kernel/process.c     |    2 +-

Regardless:
Acked-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds