1 // SPDX-License-Identifier: GPL-2.0
2 #ifndef IORING_CANCEL_H
3 #define IORING_CANCEL_H
4
5 #include <linux/io_uring_types.h>
6
7 struct io_cancel_data {
8 struct io_ring_ctx *ctx;
9 union {
10 u64 data;
11 struct file *file;
12 };
13 u8 opcode;
14 u32 flags;
15 int seq;
16 };
17
18 int io_async_cancel_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
19 int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags);
20
21 int io_try_cancel(struct io_uring_task *tctx, struct io_cancel_data *cd,
22 unsigned int issue_flags);
23 void init_hash_table(struct io_hash_table *table, unsigned size);
24
25 int io_sync_cancel(struct io_ring_ctx *ctx, void __user *arg);
26 bool io_cancel_req_match(struct io_kiocb *req, struct io_cancel_data *cd);
27
28 static inline bool io_cancel_match_sequence(struct io_kiocb *req, int sequence)
29 {
30 if (req->cancel_seq_set && sequence == req->work.cancel_seq)
31 return true;
32
33 req->cancel_seq_set = true;
34 req->work.cancel_seq = sequence;
35 return false;
36 }
37
38 #endif
39
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.