Re: [PATCH 27/33] dma-direct: use node local allocations for coherent memory

Christoph Hellwig
2018-01-10T15:30:17Z

On Wed, Jan 10, 2018 at 12:06:22PM +0000, Robin Murphy wrote:
> On 10/01/18 08:00, Christoph Hellwig wrote:
>> To preserve the x86 behavior.
>
> And combined with patch 10/22 of the SWIOTLB refactoring, this means
> SWIOTLB allocations will also end up NUMA-aware, right? Great, that's what
> we want on arm64 too :)

Well, only for swiotlb allocations that can be satisfied by
dma_direct_alloc. If we actually have to fall back to the swiotlb
buffers there is not node affinity yet.