Re: [Intel IOMMU 06/10] Avoid memory allocation failures in dma mapapi calls

[Christoph Lameter]

On Tue, 19 Jun 2007, Arjan van de Ven wrote:

> > Otherwise you are locked into the use of GFP_ATOMIC.
> 
> all callers pretty much are either in irq context or with spinlocks held. Good
> luck..... it's also called primarily from the PCI DMA API which doesn't take a
> gfp_t argument in the first place...
> 
> so I'm not seeing the point.

Hmmm... From my superficial look at things it seems that one could avoid 
GFP_ATOMIC at times. I do not know too much about the driver though but it 
seems a bit restrictive to always do GFP_ATOMIC allocs.

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