[PATCH] staging: comedi: use dma_mmap_coherent for DMA-able buffer mmap

Ian Abbott abbotti at mev.co.uk
Tue Jun 25 13:25:35 UTC 2019

On 25/06/2019 13:06, Christoph Hellwig wrote:
>  From the DMA point of view this looks good:
> Reviewed-by: Christoph Hellwig <hch at lst.de>


> I still think that doing that SetPageReserved + remap_pfn_range
> dance for the normal memory allocations is a bad idea.  Just use
> vm_insert_page on the page, in which case it doesn't need to be
> marked as Reserved.

Thanks for the hint.  I'll take a look at that.

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