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-rw-r--r--include/block/block_int.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 4ae5860..2732ccd 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -437,6 +437,10 @@ struct BlockDriverState {
/* long-running background operation */
BlockJob *job;
+ /* The node that this node inherited default options from (and a reopen on
+ * which can affect this node by changing these defaults). This is always a
+ * parent node of this node. */
+ BlockDriverState *inherits_from;
QLIST_HEAD(, BdrvChild) children;
QDict *options;