On Thu, Jun 24, 2021 at 04:12:05PM +0100, Matthew Wilcox wrote: > On Wed, Jun 23, 2021 at 08:49:55AM +0100, Christoph Hellwig wrote: > > On Tue, Jun 22, 2021 at 01:15:06PM +0100, Matthew Wilcox (Oracle) wrote: > > > The pfn of a folio is the pfn of its head page. > > > > > > Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> > > > > Maybe add a kerneldoc comment stating that? > > /** > * folio_to_pfn - Return the Page Frame Number of a folio. > * @folio: The folio. > * > * A folio may contain multiple pages. The pages have consecutive > * Page Frame Numbers. > * > * Return: The Page Frame Number of the first page in the folio. > */ Looks fine.
