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_read(struct io_kiocb *req, unsigned int issue_flags);
20int io_readv_prep_async(struct io_kiocb *req);
21int io_write(struct io_kiocb *req, unsigned int issue_flags);
22int io_writev_prep_async(struct io_kiocb *req);
23void io_readv_writev_cleanup(struct io_kiocb *req);
24void io_rw_fail(struct io_kiocb *req);

 1// SPDX-License-Identifier: GPL-2.0
 2
 3#include <linux/pagemap.h>
 4
 
 
 
 
 
 
 5struct io_async_rw {
 
 
 6	size_t				bytes_done;
 7	struct iov_iter			iter;
 8	struct iov_iter_state		iter_state;
 9	struct iovec			fast_iov;
10	struct iovec			*free_iovec;
11	int				free_iov_nr;
12	struct wait_page_queue		wpq;
13};
14
15int io_prep_read_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
16int io_prep_write_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
17int io_prep_readv(struct io_kiocb *req, const struct io_uring_sqe *sqe);
18int io_prep_writev(struct io_kiocb *req, const struct io_uring_sqe *sqe);
19int io_prep_read(struct io_kiocb *req, const struct io_uring_sqe *sqe);
20int io_prep_write(struct io_kiocb *req, const struct io_uring_sqe *sqe);
21int io_read(struct io_kiocb *req, unsigned int issue_flags);
 
22int io_write(struct io_kiocb *req, unsigned int issue_flags);
 
23void io_readv_writev_cleanup(struct io_kiocb *req);
24void io_rw_fail(struct io_kiocb *req);
25void io_req_rw_complete(struct io_kiocb *req, struct io_tw_state *ts);
26int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
27int io_read_mshot(struct io_kiocb *req, unsigned int issue_flags);
28void io_rw_cache_free(const void *entry);