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    SubjectRe: [PATCH] x86 DMA: Handle devices assigned to the guest by the host
    On Tue, Apr 29, 2008 at 01:37:29PM +0300, Amit Shah wrote:

    > dma_alloc_coherent() doesn't call dma_ops->alloc_coherent in case no
    > IOMMU translations are necessary.

    I always thought this was a huge wart in the x86-64 DMA ops. Would
    there be strong resistance to fixing it so that alloc_coherent
    matches the way the other ops are used? This will eliminate the need
    for this patch and will make other DMA ops implementations saner.

    Cheers,
    Muli


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