linux-kernel - Re: [PATCH] cpumask: alloc blank cpumask left over

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Message-Id: <200906051428.08299.rusty@rustcorp.com.au>
Date:	Fri, 5 Jun 2009 14:28:07 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Avi Kivity <avi@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] cpumask: alloc blank cpumask left over

On Fri, 5 Jun 2009 06:31:31 am Yinghai Lu wrote:
> avoid suprise when MAXSMP is enabled
>
> Signed-off-by: Yinghai Lu <yinghai.lu@...nel.org>

I understand the temptation, but two questions arise:
1) Shouldn't we actually audit to see if any of these are currently problems, 
and
2) Should the non-MAXSMP alloc_cpumask_var_node (currently a noop) zero the 
mask if __GFP_ZERO is set?

Thanks,
Rusty.
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