From: Frederic Weisbecker <frederic@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Victor Hassan <victor@allwinnertech.com>,
fweisbec@gmail.com, mingo@kernel.org, jindong.yue@nxp.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] tick/broadcast: Do not set oneshot_mask except was_periodic was true
Date: Thu, 4 May 2023 09:50:47 +0200 [thread overview]
Message-ID: <ZFNj183r1APx/Wem@lothringen> (raw)
In-Reply-To: <87pm7h3u2n.ffs@tglx>
On Thu, May 04, 2023 at 12:53:52AM +0200, Thomas Gleixner wrote:
> On Thu, May 04 2023 at 00:27, Frederic Weisbecker wrote:
>
> > On Tue, May 02, 2023 at 02:38:57PM +0200, Thomas Gleixner wrote:
> >> Updated patch below.
> >>
> >> Thanks,
> >
> > Looks good from my layperson's eyes, just a doubt about a comment below:
> >
> >> +
> >> + /*
> >> + * When switching from periodic to oneshot mode arm the broadcast
> >> + * device for the next tick.
> >> + *
> >> + * If the broadcast device has been replaced in oneshot mode and
> >> + * the oneshot broadcast mask is not empty, then arm it to expire
> >> + * immediately in order to reevaluate the next expiring timer.
> >> + * nexttick is 0 and therefore in the past which will cause the
> >
> > Is nexttick really in the past? It's set to tick_next_period...
>
> Only in the non-replacement, i.e. the 'from_periodic' codepath, no?
Bah, missed that, right.
A shy Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Thanks!
next prev parent reply other threads:[~2023-05-04 7:51 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-12 0:34 [PATCH v2] tick/broadcast: Do not set oneshot_mask except was_periodic was true Victor Hassan
2023-04-15 21:01 ` Thomas Gleixner
2023-04-17 13:28 ` Frederic Weisbecker
2023-04-17 15:02 ` Frederic Weisbecker
2023-04-18 8:50 ` Thomas Gleixner
2023-04-18 9:09 ` Thomas Gleixner
2023-04-19 13:36 ` Frederic Weisbecker
2023-04-21 21:32 ` Thomas Gleixner
2023-05-02 11:19 ` Frederic Weisbecker
2023-05-02 12:38 ` Thomas Gleixner
2023-05-03 22:27 ` Frederic Weisbecker
2023-05-03 22:53 ` Thomas Gleixner
2023-05-04 7:50 ` Frederic Weisbecker [this message]
2023-05-06 16:40 ` [PATCH v3] tick/broadcast: Make broadcast device replacement work correctly Thomas Gleixner
2023-05-08 21:27 ` [tip: timers/urgent] " tip-bot2 for Thomas Gleixner
2023-05-06 12:09 ` [PATCH v2] tick/broadcast: Do not set oneshot_mask except was_periodic was true Victor Hassan
2023-04-23 14:16 ` Victor Hassan
2023-04-24 18:28 ` Thomas Gleixner
2023-04-24 18:31 ` Thomas Gleixner
2023-04-26 2:50 ` Victor Hassan
2023-05-05 1:46 ` Victor Hassan
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