blob: 9e5435ec27d00f58ef74f5bbdfc188a6a35d2e4b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
// SPDX-License-Identifier: GPL-2.0
#ifndef IOU_OP_DEF_H
#define IOU_OP_DEF_H
struct io_issue_def {
/* needs req->file assigned */
unsigned needs_file : 1;
/* should block plug */
unsigned plug : 1;
/* hash wq insertion if file is a regular file */
unsigned hash_reg_file : 1;
/* unbound wq insertion if file is a non-regular file */
unsigned unbound_nonreg_file : 1;
/* set if opcode supports polled "wait" */
unsigned pollin : 1;
unsigned pollout : 1;
unsigned poll_exclusive : 1;
/* op supports buffer selection */
unsigned buffer_select : 1;
/* opcode is not supported by this kernel */
unsigned not_supported : 1;
/* skip auditing */
unsigned audit_skip : 1;
/* supports ioprio */
unsigned ioprio : 1;
/* supports iopoll */
unsigned iopoll : 1;
/* have to be put into the iopoll list */
unsigned iopoll_queue : 1;
/* opcode specific path will handle ->async_data allocation if needed */
unsigned manual_alloc : 1;
/* vectored opcode, set if 1) vectored, and 2) handler needs to know */
unsigned vectored : 1;
int (*issue)(struct io_kiocb *, unsigned int);
int (*prep)(struct io_kiocb *, const struct io_uring_sqe *);
};
struct io_cold_def {
/* size of async data needed, if any */
unsigned short async_size;
const char *name;
int (*prep_async)(struct io_kiocb *);
void (*cleanup)(struct io_kiocb *);
void (*fail)(struct io_kiocb *);
};
extern const struct io_issue_def io_issue_defs[];
extern const struct io_cold_def io_cold_defs[];
void io_uring_optable_init(void);
#endif
|
