1// SPDX-License-Identifier: GPL-2.0
2
3#include <linux/pagemap.h>
4
5struct io_rw_state {
6	struct iov_iter			iter;
7	struct iov_iter_state		iter_state;
8	struct iovec			fast_iov[UIO_FASTIOV];
9};
10
11struct io_async_rw {
12	struct io_rw_state		s;
13	const struct iovec		*free_iovec;
14	size_t				bytes_done;
15	struct wait_page_queue		wpq;
16};
17
18int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe);
19int io_prep_rwv(struct io_kiocb *req, const struct io_uring_sqe *sqe);
20int io_prep_rw_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
21int io_read(struct io_kiocb *req, unsigned int issue_flags);
22int io_readv_prep_async(struct io_kiocb *req);
23int io_write(struct io_kiocb *req, unsigned int issue_flags);
24int io_writev_prep_async(struct io_kiocb *req);
25void io_readv_writev_cleanup(struct io_kiocb *req);
26void io_rw_fail(struct io_kiocb *req);
27void io_req_rw_complete(struct io_kiocb *req, struct io_tw_state *ts);
28int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
29int io_read_mshot(struct io_kiocb *req, unsigned int issue_flags);
30