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-rw-r--r--include/block/block.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/block/block.h b/include/block/block.h
index 7e92f549fb..29c9e50ddb 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -403,6 +403,7 @@ BlockDeviceInfoList *bdrv_named_nodes_list(void);
BlockDriverState *bdrv_lookup_bs(const char *device,
const char *node_name,
Error **errp);
+bool bdrv_chain_contains(BlockDriverState *top, BlockDriverState *base);
BlockDriverState *bdrv_next(BlockDriverState *bs);
void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
void *opaque);