On Tue, Feb 02, 2021 at 08:00:51PM +0200, Or Gerlitz wrote:

will look into this, any idea for a more suitable location?

Maybe just a new file under lib/ for now?

quoted

Overly long line.  But we're also looking into generic helpers for
this kind of things, not sure if they made it to linux-next in the
meantime, but please check.

This is what I found in linux-next - note sure if you were referring to it

commit 11432a3cc061c39475295be533c3674c4f8a6d0b
Author: David Howells [off-list ref]

    iov_iter: Add ITER_XARRAY

No, that's not it.  Ira, what is the status of the memcpy_{to,from}_page
helpers?