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-rw-r--r--include/block/block-common.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/block/block-common.h b/include/block/block-common.h
index ec2309055b..847e4d4626 100644
--- a/include/block/block-common.h
+++ b/include/block/block-common.h
@@ -42,9 +42,13 @@
*
* Usage: read docs/devel/block-coroutine-wrapper.rst
*
- * co_wrapper_mixed functions can be called by both coroutine and
- * non-coroutine context.
+ * There are 2 kind of specifiers:
+ * - co_wrapper functions can be called by only non-coroutine context, because
+ * they always generate a new coroutine.
+ * - co_wrapper_mixed functions can be called by both coroutine and
+ * non-coroutine context.
*/
+#define co_wrapper
#define co_wrapper_mixed
/* block.c */