Messages in this thread | | | Date | Tue, 19 Jun 2007 16:34:24 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: [Intel IOMMU 06/10] Avoid memory allocation failures in dma map api calls |
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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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