linux-kernel - Re: [PATCH 2/3] e820_update_range(): Allow specifying ULLONG

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Date:	Wed, 25 Jun 2008 17:44:59 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Bernhard Walle <bwalle@...e.de>
Cc:	Yinghai Lu <yhlu.kernel@...il.com>, x86@...nel.org,
	vgoyal@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] e820_update_range(): Allow specifying ULLONG_MAX


* Bernhard Walle <bwalle@...e.de> wrote:

> * Yinghai Lu [2008-06-24 13:21]:
> >
> > > it seems we should let the caller to use
> > > e820_update_range(start, ULLONG_MAX - size,....)
> > >
> > > so you don't need to touch this func.
> > 
> > or add sanitary check before using size in this func like
> > if (size > ULLONG_MAX - start)
> >      size = ULLONG_MAX - start;
> > 
> > e820_remove_range need to the same thing
> 
> I like that. I think the complexity should be in the function, and not 
> in the caller's function.

ok - i'll wait for v2 of these patches, which will have the feedback 
from Yinghai incorporated - agreed? (Please Cc: Yinghai on the next 
submission of this series) Thanks,

	Ingo
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