Re: [PATCH v5 04/38] mm: Add folio_flush_mapping()

[Matthew Wilcox]

On Mon, Jul 10, 2023 at 04:17:27PM -0700, Andrew Morton wrote:
> On Mon, 10 Jul 2023 21:43:05 +0100 "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx> wrote:
> > +static inline struct address_space *folio_flush_mapping(struct folio *folio)
> > +{
> > +	if (unlikely(folio_test_swapcache(folio)))
> > +		return NULL;
> > +
> > +	return folio_mapping(folio);
> > +}
> 
> The name makes it sound like it flushes something.  Wouldn't
> folio_flushable_mapping() be clearer?

Yes; I wasn't a big fan of the name, but I wasn't a fan of perpetuating
the page_file_mapping / page_mapping_file confusio either.  Do you want
me to send you a set of fixup patches, or will you run them through sed
-i ?  ;-)