include/linux/uio.h

17 	size_t iov_len;
30 	size_t iov_offset;
31 	size_t count;
42 	size_t iov_offset;
43 	size_t count;
109 static inline size_t iov_length(const struct iovec *iov, unsigned long nr_segs)  in iov_length()
112 	size_t ret = 0;  in iov_length()
128 size_t iov_iter_copy_from_user_atomic(struct page *page,
129 		struct iov_iter *i, unsigned long offset, size_t bytes);
130 void iov_iter_advance(struct iov_iter *i, size_t bytes);
131 void iov_iter_revert(struct iov_iter *i, size_t bytes);
132 int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes);
133 size_t iov_iter_single_seg_count(const struct iov_iter *i);
134 size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,
136 size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
139 size_t _copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
140 size_t _copy_from_iter(void *addr, size_t bytes, struct iov_iter *i);
141 bool _copy_from_iter_full(void *addr, size_t bytes, struct iov_iter *i);
142 size_t _copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i);
143 bool _copy_from_iter_full_nocache(void *addr, size_t bytes, struct iov_iter *i);
146 size_t copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i)  in copy_to_iter()
155 size_t copy_from_iter(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter()
164 bool copy_from_iter_full(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_full()
173 size_t copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_nocache()
182 bool copy_from_iter_full_nocache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_full_nocache()
197 size_t _copy_from_iter_flushcache(void *addr, size_t bytes, struct iov_iter *i);
203 size_t _copy_mc_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
209 size_t copy_from_iter_flushcache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_flushcache()
218 size_t copy_mc_to_iter(void *addr, size_t bytes, struct iov_iter *i)  in copy_mc_to_iter()
226 size_t iov_iter_zero(size_t bytes, struct iov_iter *);
230 			unsigned long nr_segs, size_t count);
232 			unsigned long nr_segs, size_t count);
234 			unsigned long nr_segs, size_t count);
236 			size_t count);
237 void iov_iter_discard(struct iov_iter *i, unsigned int direction, size_t count);
239 			size_t maxsize, unsigned maxpages, size_t *start);
241 			size_t maxsize, size_t *start);
247 static inline size_t iov_iter_count(const struct iov_iter *i)  in iov_iter_count()
274 static inline void iov_iter_reexpand(struct iov_iter *i, size_t count)  in iov_iter_reexpand()
281 	size_t off;
284 size_t csum_and_copy_to_iter(const void *addr, size_t bytes, void *csstate, struct iov_iter *i);
285 size_t csum_and_copy_from_iter(void *addr, size_t bytes, __wsum *csum, struct iov_iter *i);
286 bool csum_and_copy_from_iter_full(void *addr, size_t bytes, __wsum *csum, struct iov_iter *i);
287 size_t hash_and_copy_to_iter(const void *addr, size_t bytes, void *hashp,
299 int import_single_range(int type, void __user *buf, size_t len,
302 int iov_iter_for_each_range(struct iov_iter *i, size_t bytes,