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-rw-r--r--io_uring/poll.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/io_uring/poll.h b/io_uring/poll.h
new file mode 100644
index 000000000..b2393b403
--- /dev/null
+++ b/io_uring/poll.h
@@ -0,0 +1,40 @@
+// 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);