| 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | |
| 3 | #include "alloc_cache.h" |
| 4 | |
| 5 | enum { |
| 6 | IO_APOLL_OK, |
| 7 | IO_APOLL_ABORTED, |
| 8 | IO_APOLL_READY |
| 9 | }; |
| 10 | |
| 11 | struct io_poll { |
| 12 | struct file *file; |
| 13 | struct wait_queue_head *head; |
| 14 | __poll_t events; |
| 15 | struct wait_queue_entry wait; |
| 16 | }; |
| 17 | |
| 18 | struct async_poll { |
| 19 | union { |
| 20 | struct io_poll poll; |
| 21 | struct io_cache_entry cache; |
| 22 | }; |
| 23 | struct io_poll *double_poll; |
| 24 | }; |
| 25 | |
| 26 | int io_poll_add_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe); |
| 27 | int io_poll_add(struct io_kiocb *req, unsigned int issue_flags); |
| 28 | |
| 29 | int io_poll_remove_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe); |
| 30 | int io_poll_remove(struct io_kiocb *req, unsigned int issue_flags); |
| 31 | |
| 32 | struct io_cancel_data; |
| 33 | int io_poll_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd, |
| 34 | unsigned issue_flags); |
| 35 | int io_arm_poll_handler(struct io_kiocb *req, unsigned issue_flags); |
| 36 | bool io_poll_remove_all(struct io_ring_ctx *ctx, struct task_struct *tsk, |
| 37 | bool cancel_all); |
| 38 | |
| 39 | void io_apoll_cache_free(struct io_cache_entry *entry); |