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Message-ID: <20130208133441.GH3460@sgi.com>
Date:	Fri, 8 Feb 2013 07:34:41 -0600
From:	Robin Holt <holt@....com>
To:	Zhang Yanfei <zhangyanfei@...fujitsu.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Zhang Yanfei <zhangyanfei.yes@...il.com>,
	Linux MM <linux-mm@...ck.org>, mgorman@...e.de,
	minchan@...nel.org, kamezawa.hiroyu@...fujitsu.com,
	m.szyprowski@...sung.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] mm: rename confusing function names

> > static unsigned int nr_free_zone_pages(int offset)
> > {
> > 	...
> > 	unsigned int sum = 0;
> > 	...
> > 	return sum;
> > }
> > 
> > How long will it be until these things start exploding from
> > sums-of-zones which exceed 16TB?  
> > 
> 
> You mean overflow? Hmm.. it might happens. Change the sum to
> unsigned long is ok?

We are in the process right now of building a 32TB machine.  Let me make
a note about this right away.  Thankfully, the memory will be spread
over 256 zones so it should not impact us right away.

Thanks,
Robin
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