134 				  size_t bytes, struct iov_iter *i);
135 void iov_iter_advance(struct iov_iter *i, size_t bytes);
136 void iov_iter_revert(struct iov_iter *i, size_t bytes);
137 size_t fault_in_iov_iter_readable(const struct iov_iter *i, size_t bytes);
138 size_t fault_in_iov_iter_writeable(const struct iov_iter *i, size_t bytes);
140 size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
142 size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
145 size_t _copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
146 size_t _copy_from_iter(void *addr, size_t bytes, struct iov_iter *i);
147 size_t _copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i);
150 size_t copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i)  in copy_to_iter()  argument
152 	if (unlikely(!check_copy_size(addr, bytes, true)))  in copy_to_iter()
155 		return _copy_to_iter(addr, bytes, i);  in copy_to_iter()
159 size_t copy_from_iter(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter()  argument
161 	if (unlikely(!check_copy_size(addr, bytes, false)))  in copy_from_iter()
164 		return _copy_from_iter(addr, bytes, i);  in copy_from_iter()
168 bool copy_from_iter_full(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_full()  argument
170 	size_t copied = copy_from_iter(addr, bytes, i);  in copy_from_iter_full()
171 	if (likely(copied == bytes))  in copy_from_iter_full()
178 size_t copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_nocache()  argument
180 	if (unlikely(!check_copy_size(addr, bytes, false)))  in copy_from_iter_nocache()
183 		return _copy_from_iter_nocache(addr, bytes, i);  in copy_from_iter_nocache()
187 bool copy_from_iter_full_nocache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_full_nocache()  argument
189 	size_t copied = copy_from_iter_nocache(addr, bytes, i);  in copy_from_iter_full_nocache()
190 	if (likely(copied == bytes))  in copy_from_iter_full_nocache()
203 size_t _copy_from_iter_flushcache(void *addr, size_t bytes, struct iov_iter *i);
209 size_t _copy_mc_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
215 size_t copy_from_iter_flushcache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_flushcache()  argument
217 	if (unlikely(!check_copy_size(addr, bytes, false)))  in copy_from_iter_flushcache()
220 		return _copy_from_iter_flushcache(addr, bytes, i);  in copy_from_iter_flushcache()
224 size_t copy_mc_to_iter(void *addr, size_t bytes, struct iov_iter *i)  in copy_mc_to_iter()  argument
226 	if (unlikely(!check_copy_size(addr, bytes, true)))  in copy_mc_to_iter()
229 		return _copy_mc_to_iter(addr, bytes, i);  in copy_mc_to_iter()
232 size_t iov_iter_zero(size_t bytes, struct iov_iter *);
292 size_t csum_and_copy_to_iter(const void *addr, size_t bytes, void *csstate, struct iov_iter *i);
293 size_t csum_and_copy_from_iter(void *addr, size_t bytes, __wsum *csum, struct iov_iter *i);
296 bool csum_and_copy_from_iter_full(void *addr, size_t bytes,  in csum_and_copy_from_iter_full()  argument
299 	size_t copied = csum_and_copy_from_iter(addr, bytes, csum, i);  in csum_and_copy_from_iter_full()
300 	if (likely(copied == bytes))  in csum_and_copy_from_iter_full()
305 size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp,