On Thu, Aug 12, 2021 at 06:30:51PM +0200, Vlastimil Babka wrote: > > +/** > > + * folio_redirty_for_writepage - Decline to write a dirty folio. > > + * @wbc: The writeback control. > > + * @folio: The folio. > > + * > > + * When a writepage implementation decides that it doesn't want to write > > + * @folio for some reason, it should call this function, unlock @folio and > > + * return 0. > > s/0/false ... no? This sentence describes what a writepage implementation should do, and writepage returns an int, not bool.