Re: [BUG]memblock: fix overflow of array index

[David Miller]

From: "H. Peter Anvin" <hpa@xxxxxxxxxxxxxxx>
Date: Wed, 25 Apr 2012 15:29:31 -0700

> On 04/25/2012 03:28 PM, Tejun Heo wrote:
>> 
>> All indexes in memblock are integers.  Changing that particular one to
>> unsigned int doesn't fix anything.  I think it just makes things more
>> confusing.  If there ever are cases w/ more then 2G memblocks, we're
>> going for 64bit not unsigned.
>> 
> 
> I would expect there to be plenty of memblocks larger than 2G?

Yes, but not the array indexes into those memblock entries, which is
what this patch is about.
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