linux-kernel - Re: [PATCH v3] watchdog: Quiet down the boot messages

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Message-ID: <1339448210.19977.2.camel@joe2Laptop>
Date:	Mon, 11 Jun 2012 13:56:50 -0700
From:	Joe Perches <joe@...ches.com>
To:	Don Zickus <dzickus@...hat.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, nzimmer@....com,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v3] watchdog: Quiet down the boot messages

On Mon, 2012-06-11 at 16:04 -0400, Don Zickus wrote:
> A bunch of bugzillas have complained how noisy the nmi_watchdog is during
> boot-up especially with its expected failure cases (like virt and bios
> resource contention).
[]
> diff --git a/kernel/watchdog.c b/kernel/watchdog.c
[]
> @@ -390,11 +397,23 @@ static int watchdog_nmi_enable(int cpu)
[]
>  	if (!IS_ERR(event)) {
> -		pr_info("enabled, takes one hw-pmu counter.\n");
> +		/* only print for cpu0 or different than cpu0 */
> +		if (cpu == 0 || cpu0_err) {
> +			pr_info("enabled on all CPUs, permanently consumes ");
> +			pr_cont("one hw-PMU counter.\n");

Don't worry about formats exceeding 80 column please.
Don't break up pr_info into multiple bits either.

			pr_info("enabled on all cpus, permanently consumes one hw-PMU counter\n");


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