Re: [PATCH v4 16/16] nvme-pci: unmap MMIO pages with appropriate interface

From: Keith Busch
Date: Tue Aug 19 2025 - 15:58:46 EST


On Tue, Aug 19, 2025 at 08:37:00PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@xxxxxxxxxx>
>
> Block layer maps MMIO memory through dma_map_phys() interface
> with help of DMA_ATTR_MMIO attribute. There is a need to unmap
> that memory with the appropriate unmap function, something which
> wasn't possible before adding new REQ attribute to block layer in
> previous patch.

Looks good.

Reviewed-by: Keith Busch <kbusch@xxxxxxxxxx>