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// SPDX-License-Identifier: GPL-2.0
#include "alloc_cache.h"
enum {
IO_APOLL_OK,
IO_APOLL_ABORTED,
IO_APOLL_READY
};
struct io_poll {
struct file *file;
struct wait_queue_head *head;
__poll_t events;
int retries;
struct wait_queue_entry wait;
};
struct async_poll {
union {
struct io_poll poll;
struct io_cache_entry cache;
};
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);
struct io_cancel_data;
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);
void io_apoll_cache_free(struct io_cache_entry *entry);
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