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

Keith Busch kbusch at kernel.org
Tue Aug 19 12:58:22 PDT 2025


On Tue, Aug 19, 2025 at 08:37:00PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro at nvidia.com>
> 
> 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 at kernel.org>



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