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 24 int io_sync_cancel(struct io_ring_ctx *ctx, void __user *arg); 25 bool io_cancel_req_match(struct io_kiocb *req, struct io_cancel_data *cd); 26 27 static inline bool io_cancel_match_sequence(struct io_kiocb *req, int sequence) 28 { 29 if (req->cancel_seq_set && sequence == req->work.cancel_seq) 30 return true; 31 32 req->cancel_seq_set = true; 33 req->work.cancel_seq = sequence; 34 return false; 35 } 36 37 #endif 38