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-rw-r--r--block/mirror.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/mirror.c b/block/mirror.c
index 80fa345071..b5c4ae31f3 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1416,7 +1416,7 @@ static MirrorOp *coroutine_fn active_write_prepare(MirrorBlockJob *s,
     return op;
 }
 
-static void coroutine_fn active_write_settle(MirrorOp *op)
+static void coroutine_fn GRAPH_RDLOCK active_write_settle(MirrorOp *op)
 {
     uint64_t start_chunk = op->offset / op->s->granularity;
     uint64_t end_chunk = DIV_ROUND_UP(op->offset + op->bytes,