On Thu, Aug 12, 2021 at 09:22:15PM +0100, David Howells wrote: > Remove the callback func argument from __swap_writepage() as it's > end_swap_bio_write() in both places that call it. Yeah. I actually had a similar patch in a WIP tree for a while but never got to end it out. > /* linux/mm/page_io.c */ > extern int swap_readpage(struct page *page, bool do_poll); > extern int swap_writepage(struct page *page, struct writeback_control *wbc); > -extern void end_swap_bio_write(struct bio *bio); > -extern int __swap_writepage(struct page *page, struct writeback_control *wbc, > - bio_end_io_t end_write_func); > +extern int __swap_writepage(struct page *page, struct writeback_control *wbc); Please also drop the extern while you're at it. With that: Reviewed-by: Christoph Hellwig <hch@xxxxxx>