linux-kernel - Re: [PATCH 20/25] mac80211_hwsim: Replace hrtimer tasklet with softirq hrtimer

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Date:   Tue, 5 Sep 2017 10:49:32 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Johannes Berg <johannes@...solutions.net>
cc:     Anna-Maria Gleixner <anna-maria@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Christoph Hellwig <hch@....org>, keescook@...omium.org,
        John Stultz <john.stultz@...aro.org>,
        Kalle Valo <kvalo@...eaurora.org>,
        linux-wireless@...r.kernel.org
Subject: Re: [PATCH 20/25] mac80211_hwsim: Replace hrtimer tasklet with
 softirq hrtimer

On Tue, 5 Sep 2017, Johannes Berg wrote:
> On Thu, 2017-08-31 at 12:23 +0000, Anna-Maria Gleixner wrote:
> > From: Thomas Gleixner <tglx@...utronix.de>
> > 
> > Switch the timer to CLOCK_MONOTONIC_SOFT, which executed the timer
> > callback in softirq context and remove the hrtimer_tasklet.
> > 
> > Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> > Signed-off-by: Anna-Maria Gleixner <anna-maria@...utronix.de>
> > Cc: Johannes Berg <johannes@...solutions.net>
> > Cc: Kalle Valo <kvalo@...eaurora.org>
> > Cc: linux-wireless@...r.kernel.org
> > 
> This looks fine to me,
> 
> Reviewed-by: Johannes Berg <johannes@...solutions.net>
> 
> Are you planning to integrate all patches in the series through some
> other tree, perhaps to be able to get rid of the tasklet_hrtimer API,
> or should I apply this?

The patch depends on the hrtimer core changes, so we either delay the
removal for a release cycle or just take the whole lot through
tip:timers/core and get rid of it in one go.

Thanks,

	tglx