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

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

quoted

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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