43 struct iov_iter {  struct
85 static inline const struct iovec *iter_iov(const struct iov_iter *iter)  in iter_iov()  argument
95 static inline enum iter_type iov_iter_type(const struct iov_iter *i)  in iov_iter_type()
100 static inline void iov_iter_save_state(struct iov_iter *iter,  in iov_iter_save_state()
108 static inline bool iter_is_ubuf(const struct iov_iter *i)  in iter_is_ubuf()
113 static inline bool iter_is_iovec(const struct iov_iter *i)  in iter_is_iovec()
118 static inline bool iov_iter_is_kvec(const struct iov_iter *i)  in iov_iter_is_kvec()
123 static inline bool iov_iter_is_bvec(const struct iov_iter *i)  in iov_iter_is_bvec()
128 static inline bool iov_iter_is_discard(const struct iov_iter *i)  in iov_iter_is_discard()
133 static inline bool iov_iter_is_folioq(const struct iov_iter *i)  in iov_iter_is_folioq()
138 static inline bool iov_iter_is_xarray(const struct iov_iter *i)  in iov_iter_is_xarray()
143 static inline unsigned char iov_iter_rw(const struct iov_iter *i)  in iov_iter_rw()
148 static inline bool user_backed_iter(const struct iov_iter *i)  in user_backed_iter()
171 				  size_t bytes, struct iov_iter *i);
172 void iov_iter_advance(struct iov_iter *i, size_t bytes);
173 void iov_iter_revert(struct iov_iter *i, size_t bytes);
174 size_t fault_in_iov_iter_readable(const struct iov_iter *i, size_t bytes);
175 size_t fault_in_iov_iter_writeable(const struct iov_iter *i, size_t bytes);
176 size_t iov_iter_single_seg_count(const struct iov_iter *i);
178 			 struct iov_iter *i);
180 			 struct iov_iter *i);
182 size_t _copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
183 size_t _copy_from_iter(void *addr, size_t bytes, struct iov_iter *i);
184 size_t _copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i);
187 		size_t bytes, struct iov_iter *i)  in copy_folio_to_iter()
193 					  size_t bytes, struct iov_iter *i)  in copy_folio_from_iter()
199 		size_t offset, size_t bytes, struct iov_iter *i)  in copy_folio_from_iter_atomic()
205 				 size_t bytes, struct iov_iter *i);
208 size_t copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i)  in copy_to_iter()
216 size_t copy_from_iter(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter()
224 bool copy_to_iter_full(const void *addr, size_t bytes, struct iov_iter *i)  in copy_to_iter_full()
234 bool copy_from_iter_full(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_full()
244 size_t copy_from_iter_nocache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_nocache()
252 bool copy_from_iter_full_nocache(void *addr, size_t bytes, struct iov_iter *i)  in copy_from_iter_full_nocache()
268 size_t _copy_from_iter_flushcache(void *addr, size_t bytes, struct iov_iter *i);
274 size_t _copy_mc_to_iter(const void *addr, size_t bytes, struct iov_iter *i);
279 size_t iov_iter_zero(size_t bytes, struct iov_iter *);
280 bool iov_iter_is_aligned(const struct iov_iter *i, unsigned addr_mask,
282 unsigned long iov_iter_alignment(const struct iov_iter *i);
283 unsigned long iov_iter_gap_alignment(const struct iov_iter *i);
284 void iov_iter_init(struct iov_iter *i, unsigned int direction, const struct iovec *iov,
286 void iov_iter_kvec(struct iov_iter *i, unsigned int direction, const struct kvec *kvec,
288 void iov_iter_bvec(struct iov_iter *i, unsigned int direction, const struct bio_vec *bvec,
290 void iov_iter_discard(struct iov_iter *i, unsigned int direction, size_t count);
291 void iov_iter_folio_queue(struct iov_iter *i, unsigned int direction,
294 void iov_iter_xarray(struct iov_iter *i, unsigned int direction, struct xarray *xarray,
296 ssize_t iov_iter_get_pages2(struct iov_iter *i, struct page **pages,
298 ssize_t iov_iter_get_pages_alloc2(struct iov_iter *i, struct page ***pages,
300 int iov_iter_npages(const struct iov_iter *i, int maxpages);
301 void iov_iter_restore(struct iov_iter *i, struct iov_iter_state *state);
303 const void *dup_iter(struct iov_iter *new, struct iov_iter *old, gfp_t flags);
305 static inline size_t iov_iter_count(const struct iov_iter *i)  in iov_iter_count()
316 static inline void iov_iter_truncate(struct iov_iter *i, u64 count)  in iov_iter_truncate()
332 static inline void iov_iter_reexpand(struct iov_iter *i, size_t count)  in iov_iter_reexpand()
338 iov_iter_npages_cap(struct iov_iter *i, int maxpages, size_t max_bytes)  in iov_iter_npages_cap()
359 		 struct iov_iter *i);
362 		 struct iov_iter *i, bool compat);
363 int import_ubuf(int type, void __user *buf, size_t len, struct iov_iter *i);
365 static inline void iov_iter_ubuf(struct iov_iter *i, unsigned int direction,  in iov_iter_ubuf()
369 	*i = (struct iov_iter) {  in iov_iter_ubuf()
381 ssize_t iov_iter_extract_pages(struct iov_iter *i, struct page ***pages,
402 static inline bool iov_iter_extract_will_pin(const struct iov_iter *iter)  in iov_iter_extract_will_pin()
408 ssize_t extract_iter_to_sg(struct iov_iter *iter, size_t len,