1 files changed, 2 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h
index fcc61a3a19..68a3efbb43 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -188,6 +188,8 @@ typedef struct BDRVReopenState {
     int flags;
     BlockdevDetectZeroesOptions detect_zeroes;
     bool backing_missing;
+    bool replace_backing_bs;  /* new_backing_bs is ignored if this is false */
+    BlockDriverState *new_backing_bs; /* If NULL then detach the current bs */
     uint64_t perm, shared_perm;
     QDict *options;
     QDict *explicit_options;