Subject: Re: [PATCH] cpu hotplug, sched: Introduce cpu_active_map and redo
	sched domain managment (take 2)
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Marcel Holtmann <marcel@holtmann.org>
Cc: Max Krasnyansky <maxk@qualcomm.com>, mingo@elte.hu,
       dmitry.adamushko@gmail.com, torvalds@linux-foundation.org, pj@sgi.com,
       ghaskins@novell.com, linux-kernel@vger.kernel.org
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	 <1216123068.27242.60.camel@violet.holtmann.net>
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Date: Tue, 15 Jul 2008 14:03:05 +0200
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On Tue, 2008-07-15 at 13:57 +0200, Marcel Holtmann wrote:
> Hi Peter,
> 
> > > >   *  #ifdef CONFIG_HOTPLUG_CPU
> > > >   *     cpu_possible_map - has bit 'cpu' set iff cpu is populatable
> > > >   *     cpu_present_map  - has bit 'cpu' set iff cpu is populated
> > > >   *     cpu_online_map   - has bit 'cpu' set iff cpu available to scheduler
> > > > + *     cpu_active_map   - has bit 'cpu' set iff cpu available to migration
> > > 
> > > why not just fixing all spelling mistakes instead of keeping them
> > > around ;)
> > 
> > What spelling mistakes?
> 
> so it wasn't meant to say "... if cpu ..." and I simply miss something
> here (which is possible)?

It's a math term, iff means: if and only if.


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