Re: [PATCH v2 RFC/RFT] dma-contiguous: Get normal pages for single-page allocations

[Nicolin Chen]

Hi Catalin,

On Fri, Mar 22, 2019 at 10:57:13AM +0000, Catalin Marinas wrote:
> > > Do you have any numbers to back this up? You don't seem to address
> > > dma_direct_alloc() either but, as I said above, it's not trivial since
> > > some platforms expect certain physical range for DMA allocations.
> > 
> > What's the dma_direct_alloc() here about? Mind elaborating?
> 
> I just did a grep for dma_alloc_from_contiguous() in the 5.1-rc1 kernel
> and came up with __dma_direct_alloc_pages(). Should your patch cover
> this as well?

I don't get the meaning of "cover this" here. What missing part
do you refer to?