[Linaro-mm-sig] Re: [PATCH v3 02/10] iov_iter: add iterator type for dmabuf maps

On Wed, Apr 29, 2026 at 04:25:48PM +0100, Pavel Begunkov wrote:

Introduce a new iterator type for dmabuf maps. The map in an opaque object with internals and format specific to the subsystem / driver, and only it can use that subsystem / driver for issuing IO. The task of the middle layers is to pass the map / iterator further down, maybe doing basic splitting and length checking. The iterator can only be used by operations of the file the associated map was created for.

Nice, this ended up way simpler than what I would have imagined.

Reviewed-by: Christoph Hellwig hch@lst.de