On Fri, Mar 05, 2021 at 04:19:01AM +0000, Matthew Wilcox (Oracle) wrote: > Cachefiles was relying on wait_page_key and wait_bit_key being the > same layout, which is fragile. Now that wait_page_key is exposed in > the pagemap.h header, we can remove that fragility. Also switch it > to use the folio directly instead of the page. Yikes. That fix itself is something that should go into mainline ASAP as it fixes a massive landmine instead of mixing it up with the folio conversion.
