linux-kernel - Re: + x86-show-cpuinfo-only-for-online-cpus.patch added to -mm tree

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Message-ID: <20071106192026.GE15369@alberich.amd.com>
Date:	Tue, 6 Nov 2007 20:20:54 +0100
From:	"Andreas Herrmann" <andreas.herrmann3@....com>
To:	"Yinghai Lu" <yhlu.kernel@...il.com>
cc:	linux-kernel@...r.kernel.org, mm-commits@...r.kernel.org,
	gcosta@...hat.com, mingo@...e.hu, tglx@...utronix.de,
	travis@....com
Subject: Re: + x86-show-cpuinfo-only-for-online-cpus.patch added to -mm
 tree

On Thu, Nov 01, 2007 at 03:31:23PM -0700, Yinghai Lu wrote:
> 
> wonder if could change
> 
> >       if (!cpu_online(c->cpu_index))
> >               return 0;
> 
> ==>
> 
> >       if (c->cpu_index >= NR_CPUS)
> >               return 0;
> 
> and add another entry for every cpu
> online : 1 when it is enabled
> or online : 0 when it is disabled by /sys/devices/system/cpuX/online.

No, I don't think that would be a good idea. It would change
the usual behaviour of that interface (to display only CPUs that
are "up and running".) 


Regards,

Andreas

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