Re: [PATCH 34/75] mm/vmscan: Turn page_check_dirty_writeback() into folio_check_dirty_writeback()

[Matthew Wilcox]

On Sun, Feb 06, 2022 at 11:51:54PM -0800, Christoph Hellwig wrote:
> > -	mapping = page_mapping(page);
> > +	mapping = folio_mapping(folio);
> >  	if (mapping && mapping->a_ops->is_dirty_writeback)
> > -		mapping->a_ops->is_dirty_writeback(page, dirty, writeback);
> > +		mapping->a_ops->is_dirty_writeback(&folio->page, dirty, writeback);
> 
> This adds an overly long line.

Yeah, I'm planning on taking care of it in 5.19 by switching
is_dirty_writeback() to take a folio.

> Otherwise looks good:
> 
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
>