include/linux/fs.h

66 struct iov_iter;
399 	ssize_t (*direct_IO)(struct kiocb *, struct iov_iter *iter);
1876 struct iov_iter;
1883 	ssize_t (*read_iter) (struct kiocb *, struct iov_iter *);
1884 	ssize_t (*write_iter) (struct kiocb *, struct iov_iter *);
1961 				     struct iov_iter *iter)  in call_read_iter()
1967 				      struct iov_iter *iter)  in call_write_iter()
3047 extern ssize_t generic_write_checks(struct kiocb *, struct iov_iter *);
3052 		struct iov_iter *to, ssize_t already_read);
3053 extern ssize_t generic_file_read_iter(struct kiocb *, struct iov_iter *);
3054 extern ssize_t __generic_file_write_iter(struct kiocb *, struct iov_iter *);
3055 extern ssize_t generic_file_write_iter(struct kiocb *, struct iov_iter *);
3056 extern ssize_t generic_file_direct_write(struct kiocb *, struct iov_iter *);
3057 extern ssize_t generic_perform_write(struct file *, struct iov_iter *, loff_t);
3059 ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos,
3061 ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos,
3064 			   struct iov_iter *iter);
3066 			    struct iov_iter *iter);
3069 extern ssize_t blkdev_read_iter(struct kiocb *iocb, struct iov_iter *to);
3070 extern ssize_t blkdev_write_iter(struct kiocb *iocb, struct iov_iter *from);
3115 			     struct block_device *bdev, struct iov_iter *iter,
3122 					 struct iov_iter *iter,  in blockdev_direct_IO()
3246 extern ssize_t noop_direct_IO(struct kiocb *iocb, struct iov_iter *iter);