linux-kernel - Re: [PATCH] hrtimer: Remove overly verbose "switch to high res mode" message

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1253826764.1806.24.camel@Joe-Laptop.home>
Date:	Thu, 24 Sep 2009 14:12:44 -0700
From:	Joe Perches <joe@...ches.com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] hrtimer: Remove overly verbose "switch to high res
 mode" message

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@...co.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.


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/