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-rw-r--r--block/qcow2.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/block/qcow2.h b/block/qcow2.h
index c75decc38a..4f67eb912a 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -895,7 +895,9 @@ int qcow2_change_refcount_order(BlockDriverState *bs, int refcount_order,
void *cb_opaque, Error **errp);
int coroutine_fn GRAPH_RDLOCK qcow2_shrink_reftable(BlockDriverState *bs);
int64_t coroutine_fn qcow2_get_last_cluster(BlockDriverState *bs, int64_t size);
-int coroutine_fn qcow2_detect_metadata_preallocation(BlockDriverState *bs);
+
+int coroutine_fn GRAPH_RDLOCK
+qcow2_detect_metadata_preallocation(BlockDriverState *bs);
/* qcow2-cluster.c functions */
int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size,