linux/io_uring/cancel.h

// SPDX-License-Identifier: GPL-2.0

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_kiocb *req, struct io_cancel_data *cd,
		  unsigned int issue_flags);
void init_hash_table(struct io_hash_table *table, unsigned size);
io_uring: move cancelation into its own file This also helps cleanup the io_uring.h cancel parts, as we can make things static in the cancel.c file, mostly. Signed-off-by: Jens Axboe <axboe@kernel.dk> 2022-05-26 02:36:47 +00:00			`// SPDX-License-Identifier: GPL-2.0`

			`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);`

io_uring: propagate locking state to poll cancel Poll cancellation will be soon need to grab ->uring_lock inside, pass the locking state, i.e. issue_flags, inside the cancellation functions. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/b86781d047727c07163443b57551a3fa57c7c5e1.1655371007.git.asml.silence@gmail.com Reviewed-by: Hao Xu <howeyxu@tencent.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> 2022-06-16 09:22:11 +00:00			`int io_try_cancel(struct io_kiocb req, struct io_cancel_data cd,`
			`unsigned int issue_flags);`
io_uring: introduce a struct for hash table Instead of passing around a pointer to hash buckets, add a bit of type safety and wrap it into a structure. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/d65bc3faba537ec2aca9eabf334394936d44bd28.1655371007.git.asml.silence@gmail.com Reviewed-by: Hao Xu <howeyxu@tencent.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> 2022-06-16 09:22:10 +00:00			`void init_hash_table(struct io_hash_table *table, unsigned size);`