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-rw-r--r--include/block/thread-pool.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/block/thread-pool.h b/include/block/thread-pool.h
index 95ff2b0bdb..c408bde74c 100644
--- a/include/block/thread-pool.h
+++ b/include/block/thread-pool.h
@@ -29,12 +29,17 @@ typedef struct ThreadPool ThreadPool;
 ThreadPool *thread_pool_new(struct AioContext *ctx);
 void thread_pool_free(ThreadPool *pool);
 
+/*
+ * thread_pool_submit* API: submit I/O requests in the thread's
+ * current AioContext.
+ */
 BlockAIOCB *thread_pool_submit_aio(ThreadPool *pool,
         ThreadPoolFunc *func, void *arg,
         BlockCompletionFunc *cb, void *opaque);
 int coroutine_fn thread_pool_submit_co(ThreadPool *pool,
         ThreadPoolFunc *func, void *arg);
 void thread_pool_submit(ThreadPool *pool, ThreadPoolFunc *func, void *arg);
+
 void thread_pool_update_params(ThreadPool *pool, struct AioContext *ctx);
 
 #endif