[PATCH v4 15/16] block-dma: properly take MMIO path

[Keith Busch]

On Tue, Aug 19, 2025 at 08:36:59PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro at nvidia.com>
> 
> Make sure that CPU is not synced and IOMMU is configured to take
> MMIO path by providing newly introduced DMA_ATTR_MMIO attribute.

We may have a minor patch conflict here with my unmerged dma metadata
series, but not a big deal.

Looks good.

Reviewed-by: Keith Busch <kbusch at kernel.org>