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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263// 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; /* io_try_cancel() has found it being run by io-wq, and flagged it */ bool running;};
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 *));
/* io_uring_try_cancel_requests() flags */enum { /* match all requests, not just REQ_F_INFLIGHT */ IO_CANCEL_ALL = 1, /* ignore timeouts */ IO_CANCEL_KEEP_TIMEOUTS = 2, /* called by the SQPOLL thread */ IO_CANCEL_SQPOLL = 4,};
__cold bool io_uring_try_cancel_requests(struct io_ring_ctx *ctx, struct io_uring_task *tctx, unsigned int flags);__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