linux-kernel - Re: [PATCH v5 2/2] watchdog: add watchdog

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Message-ID: <5523FE48.2070808@oracle.com>
Date:	Tue, 07 Apr 2015 11:56:56 -0400
From:	Sasha Levin <sasha.levin@...cle.com>
To:	cmetcalf@...hip.com, Frederic Weisbecker <fweisbec@...il.com>,
	Don Zickus <dzickus@...hat.com>,
	Ingo Molnar <mingo@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Andrew Jones <drjones@...hat.com>,
	chai wen <chaiw.fnst@...fujitsu.com>,
	Ulrich Obergfell <uobergfe@...hat.com>,
	Fabian Frederick <fabf@...net.be>,
	Aaron Tomlin <atomlin@...hat.com>,
	Ben Zhang <benzh@...omium.org>,
	Christoph Lameter <cl@...ux.com>,
	Gilad Ben-Yossef <gilad@...yossef.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
	linux-doc@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v5 2/2] watchdog: add watchdog_exclude sysctl to assist
 nohz

On 04/06/2015 03:45 PM, cmetcalf@...hip.com wrote:
>  void __init lockup_detector_init(void)
>  {
>  	set_sample_period();
>  
> +	alloc_bootmem_cpumask_var(&watchdog_exclude_mask);

This happens pretty late in the boot process and should just be:

	alloc_cpumask_var(&watchdog_exclude_mask, GFP_KERNEL);


Thanks,
Sasha
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