1 files changed, 2 insertions, 0 deletions
diff --git a/include/block/export.h b/include/block/export.h
index 7feb02e..f2fe0f8 100644
--- a/include/block/export.h
+++ b/include/block/export.h
@@ -57,6 +57,8 @@ struct BlockExport {
      * Reference count for this block export. This includes strong references
      * both from the owner (qemu-nbd or the monitor) and clients connected to
      * the export.
+     *
+     * Use atomics to access this field.
      */
     int refcount;