2 * This file is only for sharing some helpers from read_write.c with compat.c.
3 * Don't use anywhere else.
7 typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *);
8 typedef ssize_t (*iov_fn_t)(struct kiocb *, const struct iovec *,
9 unsigned long, loff_t);
11 ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos, size_t count,