David Laight [off-list ref] wrote:

I was thinking of import_iovec() - or whatever its current
name is.

That doesn't actually access the buffer described by the iovec[].

That really needs a single structure that contains the iov_iter
and the cache[] (which the caller pretty much always allocates
in the same place).

cache[]?

Fiddling with that is ok until you find what io_uring does.
Then it all gets entirely horrid.

That statement sounds like back-of-the-OLS-T-shirt material ;-)

David