linux-kernel - Re: [PATCH] x86_64: move out tick_nohz_stop_sched

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Message-ID: <20080110080146.GB19470@elte.hu>
Date:	Thu, 10 Jan 2008 09:01:46 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
Cc:	tglx@...utronix.de, hpa@...or.com, chrisw@...s-sol.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86_64: move out tick_nohz_stop_sched_tick() call from
	the loop


* Hiroshi Shimamoto <h-shimamoto@...jp.nec.com> wrote:

> @@ -170,14 +170,13 @@ void cpu_idle(void)
>  	current_thread_info()->status |= TS_POLLING;
>  	/* endless idle loop with no priority at all */
>  	while (1) {
> +		tick_nohz_stop_sched_tick();
>  		while (!need_resched()) {
>  			void (*idle)(void);
>  
>  			if (__get_cpu_var(cpu_idle_state))
>  				__get_cpu_var(cpu_idle_state) = 0;
>  
> -			tick_nohz_stop_sched_tick();
> -

thanks, applied.

	Ingo
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