On Fri, Apr 29, 2022 at 06:25:20PM +0100, Matthew Wilcox (Oracle) wrote: > The ->readpage and ->read_folio operations are always called with the > same set of bits; it's only the type which differs. Use a union to > help with the transition and convert all the callers to use ->read_folio. I don't think this is going to make CFI very happy.