Re: [PATCH 07/12] writeback: Factor writeback_iter_init() out of write_cache_pages()

[Christoph Hellwig]

On Mon, Jun 26, 2023 at 09:30:07PM -0700, Christoph Hellwig wrote:
> On Mon, Jun 26, 2023 at 06:35:16PM +0100, Matthew Wilcox (Oracle) wrote:
> > +	for (folio = writeback_iter_init(mapping, wbc);
> > +	     folio;
> > +	     folio = writeback_get_next(mapping, wbc)) {
> 
> Ok that's another way to structure it.  Guess I should look over the
> whole series first..

That beeing said.  Given that writeback_iter_init calls 
writeback_get_next anyway,

	writeback_iter_init(mapping, wbc);
	while ((folio = writeback_get_next(mapping, wbc)))

still feels a little easier to follow to be.  No hard feelings either
way, just an observation.