On Wed, Jun 16, 2021 at 11:03:23AM +0100, David Howells wrote: > Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> wrote: > > > folio_index() is the equivalent of page_index() for folios. > > folio_file_page() is the equivalent of find_subpage(). > > folio_contains() is the equivalent of thp_contains(). > > > > No changes to generated code. > > > > Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> > > Reviewed-by: Christoph Hellwig <hch@xxxxxx> > > Acked-by: Jeff Layton <jlayton@xxxxxxxxxx> > > Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > > Acked-by: Vlastimil Babka <vbabka@xxxxxxx> > > Reviewed-by: William Kucharski <william.kucharski@xxxxxxxxxx> > > folio_subpage() might be a better name than folio_file_page(). I want it to be clear that you can't call this for folios which aren't part of a file. For example, anonymous memory.
