linux-kernel - Re: clockevents: fix resume logic

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Message-Id: <20070912214821.7457e88c.akpm@linux-foundation.org>
Date:	Wed, 12 Sep 2007 21:48:21 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	john stultz <johnstul@...ibm.com>, Ingo Molnar <mingo@...e.hu>,
	Len Brown <lenb@...nel.org>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>
Subject: Re: clockevents: fix resume logic

On Wed, 12 Sep 2007 18:57:42 +0200 Thomas Gleixner <tglx@...utronix.de> wrote:

> Does the test hack below fix the problem for nohz/highres enabled
> kernels ?
> 
> 	tglx
> 
> --- a/kernel/time/tick-broadcast.c
> +++ b/kernel/time/tick-broadcast.c
> @@ -382,6 +382,8 @@ static int tick_broadcast_set_event(ktime_t expires, int force)
>  
>  int tick_resume_broadcast_oneshot(struct clock_event_device *bc)
>  {
> +	cpu_set(smp_processor_id(), tick_broadcast_oneshot_mask);
> +
>  	clockevents_set_mode(bc, CLOCK_EVT_MODE_ONESHOT);
>  
>  	if(!cpus_empty(tick_broadcast_oneshot_mask))

yup
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