167 				  size_t bytes, struct iov_iter *i);
168 void iov_iter_advance(struct iov_iter *i, size_t bytes);
169 void iov_iter_revert(struct iov_iter *i, size_t bytes);
170 size_t fault_in_iov_iter_readable(const struct iov_iter *i, size_t bytes);
171 size_t fault_in_iov_iter_writeable(const struct iov_iter *i, size_t bytes);
173 size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
175 size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
178 size_t _copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
179 size_t _copy_from_iter(void *addr, size_t bytes, struct iov_iter *i);
180 size_t _copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i);
183 		size_t bytes, struct iov_iter *i)  in copy_folio_to_iter()  argument
185 	return copy_page_to_iter(&folio->page, offset, bytes, i);  in copy_folio_to_iter()
189 		size_t offset, size_t bytes, struct iov_iter *i)  in copy_folio_from_iter_atomic()  argument
191 	return copy_page_from_iter_atomic(&folio->page, offset, bytes, i);  in copy_folio_from_iter_atomic()
195 				 size_t bytes, struct iov_iter *i);
198 size_t copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i)  in copy_to_iter()  argument
200 	if (check_copy_size(addr, bytes, true))  in copy_to_iter()
201 		return _copy_to_iter(addr, bytes, i);  in copy_to_iter()
206 size_t copy_from_iter(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter()  argument
208 	if (check_copy_size(addr, bytes, false))  in copy_from_iter()
209 		return _copy_from_iter(addr, bytes, i);  in copy_from_iter()
214 bool copy_from_iter_full(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_full()  argument
216 	size_t copied = copy_from_iter(addr, bytes, i);  in copy_from_iter_full()
217 	if (likely(copied == bytes))  in copy_from_iter_full()
224 size_t copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_nocache()  argument
226 	if (check_copy_size(addr, bytes, false))  in copy_from_iter_nocache()
227 		return _copy_from_iter_nocache(addr, bytes, i);  in copy_from_iter_nocache()
232 bool copy_from_iter_full_nocache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_full_nocache()  argument
234 	size_t copied = copy_from_iter_nocache(addr, bytes, i);  in copy_from_iter_full_nocache()
235 	if (likely(copied == bytes))  in copy_from_iter_full_nocache()
248 size_t _copy_from_iter_flushcache(void *addr, size_t bytes, struct iov_iter *i);
254 size_t _copy_mc_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
273 size_t iov_iter_zero(size_t bytes, struct iov_iter *);
350 size_t csum_and_copy_to_iter(const void *addr, size_t bytes, void *csstate, struct iov_iter *i);
351 size_t csum_and_copy_from_iter(void *addr, size_t bytes, __wsum *csum, struct iov_iter *i);
354 bool csum_and_copy_from_iter_full(void *addr, size_t bytes,  in csum_and_copy_from_iter_full()  argument
357 	size_t copied = csum_and_copy_from_iter(addr, bytes, csum, i);  in csum_and_copy_from_iter_full()
358 	if (likely(copied == bytes))  in csum_and_copy_from_iter_full()
363 size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp,