Re: [RFC][PATCHSET] iov_iter work

[Christoph Hellwig]

On Mon, Jun 07, 2021 at 04:35:46PM -0700, Linus Torvalds wrote:
> Thinking more about this thing, I think it means that what we *should*
> do is simply just
> 
>   void iov_iter_init(struct iov_iter *i, unsigned int direction,
>                         const struct iovec *iov, unsigned long nr_segs,
>                         size_t count)
>   {
>         WARN_ON_ONCE(direction & ~(READ | WRITE));
>         iWARN_ON_ONCE(uaccess_kernel());

Yes, exactly! (except for the spurious i above, of course).