151 				  size_t bytes, struct iov_iter *i);
152 void iov_iter_advance(struct iov_iter *i, size_t bytes);
153 void iov_iter_revert(struct iov_iter *i, size_t bytes);
154 size_t fault_in_iov_iter_readable(const struct iov_iter *i, size_t bytes);
155 size_t fault_in_iov_iter_writeable(const struct iov_iter *i, size_t bytes);
157 size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
159 size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
162 size_t _copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
163 size_t _copy_from_iter(void *addr, size_t bytes, struct iov_iter *i);
164 size_t _copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i);
167 		size_t bytes, struct iov_iter *i)  in copy_folio_to_iter()  argument
169 	return copy_page_to_iter(&folio->page, offset, bytes, i);  in copy_folio_to_iter()
173 size_t copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i)  in copy_to_iter()  argument
175 	if (check_copy_size(addr, bytes, true))  in copy_to_iter()
176 		return _copy_to_iter(addr, bytes, i);  in copy_to_iter()
181 size_t copy_from_iter(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter()  argument
183 	if (check_copy_size(addr, bytes, false))  in copy_from_iter()
184 		return _copy_from_iter(addr, bytes, i);  in copy_from_iter()
189 bool copy_from_iter_full(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_full()  argument
191 	size_t copied = copy_from_iter(addr, bytes, i);  in copy_from_iter_full()
192 	if (likely(copied == bytes))  in copy_from_iter_full()
199 size_t copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_nocache()  argument
201 	if (check_copy_size(addr, bytes, false))  in copy_from_iter_nocache()
202 		return _copy_from_iter_nocache(addr, bytes, i);  in copy_from_iter_nocache()
207 bool copy_from_iter_full_nocache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_full_nocache()  argument
209 	size_t copied = copy_from_iter_nocache(addr, bytes, i);  in copy_from_iter_full_nocache()
210 	if (likely(copied == bytes))  in copy_from_iter_full_nocache()
223 size_t _copy_from_iter_flushcache(void *addr, size_t bytes, struct iov_iter *i);
229 size_t _copy_mc_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
234 size_t iov_iter_zero(size_t bytes, struct iov_iter *);
313 size_t csum_and_copy_to_iter(const void *addr, size_t bytes, void *csstate, struct iov_iter *i);
314 size_t csum_and_copy_from_iter(void *addr, size_t bytes, __wsum *csum, struct iov_iter *i);
317 bool csum_and_copy_from_iter_full(void *addr, size_t bytes,  in csum_and_copy_from_iter_full()  argument
320 	size_t copied = csum_and_copy_from_iter(addr, bytes, csum, i);  in csum_and_copy_from_iter_full()
321 	if (likely(copied == bytes))  in csum_and_copy_from_iter_full()
326 size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp,