Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > Add BIO_PAGE_PINNED to indicate that the pages in a bio are pinned > > (FOLL_PIN) and that the pin will need removing. > > The subject is odd when this doesn't actually switch anything, > but just adds the infrastructure to unpin pages. How about: block: Add BIO_PAGE_PINNED and associated infrastructure > > +static inline void bio_set_cleanup_mode(struct bio *bio, struct iov_iter *iter) > ... > At this point I'd be tempted to just open code these two lines > instead of adding a helper, but I can live with the helper if you > prefer it. I can do that. It makes sense to put the call to that next to the call to iov_iter_extract_pages(). David