On Mon, 14 Oct 2024 at 20:23, Joanne Koong <joannelkoong@xxxxxxxxx> wrote: > This change sets AS_NO_WRITEBACK_RECLAIM on the inode mapping so that > FUSE folios are not reclaimed and waited on while in writeback, and > removes the temporary folio + extra copying and the internal rb tree. What about sync(2)? And page migration? Hopefully there are no other cases, but I think a careful review of places where generic code waits for writeback is needed before we can say for sure. Thanks, Miklos