Re: [PATCH] Make GFP_DMA allocations w/o ZONE_DMA emit a warninginstead of failing

From: Pavel Machek
Date: Thu Jun 02 2011 - 17:47:14 EST


On Wed 2011-06-01 21:38:59, KOSAKI Motohiro wrote:
> 2011/6/1 Dmitry Eremin-Solenikov <dbaryshkov@xxxxxxxxx>:
> > Please be more polite to other people. After a197b59ae6 all allocations
> > with GFP_DMA set on nodes without ZONE_DMA fail nearly silently (only
> > one warning during bootup is emited, no matter how many things fail).
> > This is a very crude change on behaviour. To be more civil, instead of
> > failing emit noisy warnings each time smbd. tries to allocate a GFP_DMA
> > memory on non-ZONE_DMA node.
> >
> > This change should be reverted after one or two major releases, but
> > we should be more accurate rather than hoping for the best.
>
> Instaed of, shouldn't we revert a197b59ae6? Some arch don't have
> DMA_ZONE at all.
> and a197b59ae6 only care x86 embedded case. If we accept your patch, I
> can imagine
> other people will claim warn foold is a bug. ;)

I believe we should revert. It broke zaurus boot for metan...
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