Re: [RFC][PATCH] a bit improvement of ZONE_DMA page reclaim

[Andrew Morton]

On Fri, 18 Jan 2008 15:34:33 +0900 KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> wrote:

> Hi
> 
> on X86, ZONE_DMA is very very small.
> It is often no used at all. 

In that case page-reclaim is supposed to set all_unreclaimable and
basically ignores the zone altogether until it looks like something might
have changed.

Is that code not working?  (quite possible).


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