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From: Joe Perches <joe@perches.com>
To: Roland Dreier <rdreier@cisco.com>
Cc: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] hrtimer: Remove overly verbose "switch to high res mode" message
Date: Thu, 24 Sep 2009 14:12:44 -0700	[thread overview]
Message-ID: <1253826764.1806.24.camel@Joe-Laptop.home> (raw)
In-Reply-To: <ada1vlw126s.fsf_-_@cisco.com>

On Thu, 2009-09-24 at 14:07 -0700, Roland Dreier wrote:
> On big systems, printing <number of CPUs> copies of
>     Switched to high resolution mode on CPU nnn
> clutters up the kernel log for minimal gain.  Just get rid of them.
> Signed-off-by: Roland Dreier <rolandd@cisco.com>
> diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
> index e5d98ce..4267279 100644
> --- a/kernel/hrtimer.c
> +++ b/kernel/hrtimer.c
> @@ -720,8 +720,6 @@ static int hrtimer_switch_to_hres(void)
>  	/* "Retrigger" the interrupt to get things going */
>  	retrigger_next_event(NULL);
>  	local_irq_restore(flags);
> -	printk(KERN_DEBUG "Switched to high resolution mode on CPU %d\n",
> -	       smp_processor_id());

Perhaps pr_debug instead?
It gets compiled to nothing unless DEBUG is defined.



  reply	other threads:[~2009-09-24 21:12 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-23 22:35 [PATCH 2/2] x86: Reduce verbosity of "PAT enabled" kernel message Roland Dreier
2009-09-23 22:47 ` Roland Dreier
2009-09-24  9:38   ` Ingo Molnar
2009-09-24 21:07     ` [PATCH] hrtimer: Remove overly verbose "switch to high res mode" message Roland Dreier
2009-09-24 21:12       ` Joe Perches [this message]
2009-09-24 21:15         ` Roland Dreier
2009-09-24 21:20           ` Joe Perches
2009-09-25  2:42           ` Valdis.Kletnieks
2009-09-27  6:10       ` [tip:timers/urgent] " tip-bot for Roland Dreier
2009-09-24  9:37 ` [tip:x86/urgent] x86: Reduce verbosity of "PAT enabled" kernel message tip-bot for Roland Dreier

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