Re: [PATCH v5 3/9] iov_iter: Use IOCB/IOMAP_WRITE if available rather than iterator direction

[David Howells]

Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:

> > This allows all but three of the users of iov_iter_rw() to be got rid of: a
> > consistency check and a warning statement in cifs
> 
> Let's just drop these two.
> 
> > and one user in the block
> > layer that has neither available.
> 
> And use the information in the request for this one (see patch below),
> and then move this patch first in the series, add an explicit direction
> parameter in the gup_flags to the get/pin helper and drop iov_iter_rw
> and the whole confusing source/dest information in the iov_iter entirely,
> which is a really nice big tree wide cleanup that remove redundant
> information.

Fine by me, but Al might object as I think he wanted the internal checks.  Al?

David