1 | // SPDX-License-Identifier: GPL-2.0 |
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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->flags & REQ_F_CANCEL_SEQ) && sequence == req->work.cancel_seq) |
31 | return true; |
32 | |
33 | req->flags |= REQ_F_CANCEL_SEQ; |
34 | req->work.cancel_seq = sequence; |
35 | return false; |
36 | } |
37 | |
38 | #endif |
39 |