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-rw-r--r--include/block/block.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h
index 81d591dd4c..0f0ddc51b4 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -10,6 +10,16 @@
 #include "block/blockjob.h"
 #include "qemu/hbitmap.h"
 
+/*
+ * generated_co_wrapper
+ *
+ * Function specifier, which does nothing but mark functions to be
+ * generated by scripts/block-coroutine-wrapper.py
+ *
+ * Read more in docs/devel/block-coroutine-wrapper.rst
+ */
+#define generated_co_wrapper
+
 /* block.c */
 typedef struct BlockDriver BlockDriver;
 typedef struct BdrvChild BdrvChild;