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

[David Rientjes]

On Fri, 10 Jun 2011, Russell King - ARM Linux wrote:

> > Should one submit a patch adding a warning to GFP_DMA allocations
> > w/o ZONE_DMA, or the idea of the original patch is wrong?
> 
> Linus was far from impressed by the original commit, saying:
> | Using GFP_DMA is reasonable in a driver - on platforms where that
> | matters, it should allocate from the DMA zone, on platforms where it
> | doesn't matter it should be a no-op.
> 
> So no, not even a warning.
> 

Any words of wisdom for users with CONFIG_ZONE_DMA=n that actually use 
drivers where they need GFP_DMA?  The page allocator should just silently 
return memory from anywhere?
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