// SPDX-License-Identifier: GPL-2.0#ifndef IORING_CANCEL_H#define IORING_CANCEL_H #include <linux/io_uring_types.h> struct io_cancel_data {	struct io_ring_ctx *ctx;	u64 data;	struct file *file;	u8 opcode;	u32 flags;	int seq;}; int io_async_cancel_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);int io_async_cancel(struct io_kiocb *req, unsigned int issue_flags); int io_try_cancel(struct io_uring_task *tctx, struct io_cancel_data *cd,		  unsigned int issue_flags); int io_sync_cancel(struct io_ring_ctx *ctx, void __user *arg);bool io_cancel_req_match(struct io_kiocb *req, struct io_cancel_data *cd);bool io_match_task_safe(struct io_kiocb *head, struct io_uring_task *tctx,			bool cancel_all); bool io_cancel_remove_all(struct io_ring_ctx *ctx, struct io_uring_task *tctx,			  struct hlist_head *list, bool cancel_all,			  bool (*cancel)(struct io_kiocb *));int io_cancel_remove(struct io_ring_ctx *ctx, struct io_cancel_data *cd,		     unsigned int issue_flags, struct hlist_head *list,		     bool (*cancel)(struct io_kiocb *));__cold bool io_uring_try_cancel_requests(struct io_ring_ctx *ctx,					 struct io_uring_task *tctx,					 bool cancel_all, bool is_sqpoll_thread);__cold void io_uring_cancel_generic(bool cancel_all, struct io_sq_data *sqd);__cold bool io_cancel_ctx_cb(struct io_wq_work *work, void *data); static inline bool io_cancel_match_sequence(struct io_kiocb *req, int sequence){	if (req->cancel_seq_set && sequence == req->work.cancel_seq)		return true; 	req->cancel_seq_set = true;	req->work.cancel_seq = sequence;	return false;} #endif