Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > +ssize_t iov_iter_extract_pages(struct iov_iter *i, struct page ***pages, > > + size_t maxsize, unsigned int maxpages, > > + unsigned int gup_flags, size_t *offset0); > > This function isn't actually added in the current patch. Oh... It ended up in the wrong patch. > > +#define iov_iter_extract_mode(iter, gup_flags) \ > > + (user_backed_iter(iter) ? \ > > + (gup_flags & FOLL_BUF_MASK) == FOLL_SOURCE_BUF ? \ > > + FOLL_GET : FOLL_PIN : 0) > > And inline function would be nice here. I guess that would require > moving the FULL flags into mm_types.h, though. Yeah, the movement of FOLL_* flags is queued in a patch in akpm's tree. David