On Thu, Aug 12, 2021 at 09:22:41PM +0100, David Howells wrote: > [!] NOTE: This doesn't work and might damage your disk's contents. > > Delete the BIO-generating swap read/write paths and always use > ->direct_IO(). This puts the mapping layer in the filesystem. > > This doesn't work - probably due to ki_pos being set to > page_file_offset(page) which then gets remapped. Also because most common block file systems do not actually implement a ->direct_IO that does anything (noop_direct_IO).