Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
1// SPDX-License-Identifier: GPL-2.0
2
3#include <linux/io_uring_types.h>
4#include <linux/pagemap.h>
5
6struct io_meta_state {
7 u32 seed;
8 struct iov_iter_state iter_meta;
9};
10
11struct io_async_rw {
12 struct iou_vec vec;
13 size_t bytes_done;
14
15 struct_group(clear,
16 struct iov_iter iter;
17 struct iov_iter_state iter_state;
18 struct iovec fast_iov;
19 unsigned buf_group;
20
21 /*
22 * wpq is for buffered io, while meta fields are used with
23 * direct io
24 */
25 union {
26 struct wait_page_queue wpq;
27 struct {
28 struct uio_meta meta;
29 struct io_meta_state meta_state;
30 };
31 };
32 );
33};
34
35int io_prep_read_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
36int io_prep_write_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
37int io_prep_readv_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
38int io_prep_writev_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
39int io_prep_readv(struct io_kiocb *req, const struct io_uring_sqe *sqe);
40int io_prep_writev(struct io_kiocb *req, const struct io_uring_sqe *sqe);
41int io_prep_read(struct io_kiocb *req, const struct io_uring_sqe *sqe);
42int io_prep_write(struct io_kiocb *req, const struct io_uring_sqe *sqe);
43int io_read(struct io_kiocb *req, unsigned int issue_flags);
44int io_write(struct io_kiocb *req, unsigned int issue_flags);
45int io_read_fixed(struct io_kiocb *req, unsigned int issue_flags);
46int io_write_fixed(struct io_kiocb *req, unsigned int issue_flags);
47void io_readv_writev_cleanup(struct io_kiocb *req);
48void io_rw_fail(struct io_kiocb *req);
49void io_req_rw_complete(struct io_tw_req tw_req, io_tw_token_t tw);
50int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
51int io_read_mshot(struct io_kiocb *req, unsigned int issue_flags);
52void io_rw_cache_free(const void *entry);