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-rw-r--r--io_uring/sqpoll.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/io_uring/sqpoll.h b/io_uring/sqpoll.h
new file mode 100644
index 0000000000..8df37e8c91
--- /dev/null
+++ b/io_uring/sqpoll.h
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+
+struct io_sq_data {
+ refcount_t refs;
+ atomic_t park_pending;
+ struct mutex lock;
+
+ /* ctx's that are using this sqd */
+ struct list_head ctx_list;
+
+ struct task_struct *thread;
+ struct wait_queue_head wait;
+
+ unsigned sq_thread_idle;
+ int sq_cpu;
+ pid_t task_pid;
+ pid_t task_tgid;
+
+ unsigned long state;
+ struct completion exited;
+};
+
+int io_sq_offload_create(struct io_ring_ctx *ctx, struct io_uring_params *p);
+void io_sq_thread_finish(struct io_ring_ctx *ctx);
+void io_sq_thread_stop(struct io_sq_data *sqd);
+void io_sq_thread_park(struct io_sq_data *sqd);
+void io_sq_thread_unpark(struct io_sq_data *sqd);
+void io_put_sq_data(struct io_sq_data *sqd);
+void io_sqpoll_wait_sq(struct io_ring_ctx *ctx);
+int io_sqpoll_wq_cpu_affinity(struct io_ring_ctx *ctx, cpumask_var_t mask);