Re: [for-next PATCH 2/5] RDMA/rxe: use iova_to_vaddr to transform iova for rxe_mr_copy

[Jason Gunthorpe]

On Fri, Nov 11, 2022 at 04:30:27AM +0000, Li Zhijian wrote:
> Make the code more friendly and readable by using iova_to_vaddr()

But the point of this is to be faster because it knows pages are in a
linear list

As with my previous suggestion, just convert this to an xarray and
then it is a trivial and fast xas_for_each_range() returning struct
pages.

Jason