[linux-block.git] / io_uring / poll.h

// SPDX-License-Identifier: GPL-2.0

enum {
	IO_APOLL_OK,
	IO_APOLL_ABORTED,
	IO_APOLL_READY
};

struct io_poll {
	struct file			*file;
	struct wait_queue_head		*head;
	__poll_t			events;
	struct wait_queue_entry		wait;
};

struct async_poll {
	struct io_poll		poll;
	struct io_poll		*double_poll;
};

int io_poll_add_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_poll_add(struct io_kiocb *req, unsigned int issue_flags);

int io_poll_remove_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_poll_remove(struct io_kiocb *req, unsigned int issue_flags);

int io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd,
		   unsigned issue_flags);
int io_arm_poll_handler(struct io_kiocb *req, unsigned issue_flags);
bool io_poll_remove_all(struct io_ring_ctx *ctx, struct task_struct *tsk,
			bool cancel_all);
Commit	Line	Data
329061d3 JA	1	// SPDX-License-Identifier: GPL-2.0
	2
	3	enum {
	4	IO_APOLL_OK,
	5	IO_APOLL_ABORTED,
	6	IO_APOLL_READY
	7	};
	8
	9	struct io_poll {
	10	struct file *file;
	11	struct wait_queue_head *head;
	12	__poll_t events;
	13	struct wait_queue_entry wait;
	14	};
	15
	16	struct async_poll {
	17	struct io_poll poll;
	18	struct io_poll *double_poll;
	19	};
	20
	21	int io_poll_add_prep(struct io_kiocb req, const struct io_uring_sqe sqe);
	22	int io_poll_add(struct io_kiocb *req, unsigned int issue_flags);
	23
	24	int io_poll_remove_prep(struct io_kiocb req, const struct io_uring_sqe sqe);
	25	int io_poll_remove(struct io_kiocb *req, unsigned int issue_flags);
	26
5d7943d9 PB	27	int io_poll_cancel(struct io_ring_ctx ctx, struct io_cancel_data cd,
5d7943d9 PB	28	unsigned issue_flags);
329061d3 JA	29	int io_arm_poll_handler(struct io_kiocb *req, unsigned issue_flags);
	30	bool io_poll_remove_all(struct io_ring_ctx ctx, struct task_struct tsk,
	31	bool cancel_all);