Re: [RFC][PATCH 4/5 v2] dma-buf: heaps: Add CMA heap to dmabuf heapss

[Christoph Hellwig]

On Tue, Mar 05, 2019 at 12:54:32PM -0800, John Stultz wrote:
> This adds a CMA heap, which allows userspace to allocate
> a dma-buf of contiguous memory out of a CMA region.

With my previous suggestion of DMA API usage you'd get CMA support for
free in the system one instead of all this duplicate code..