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-rw-r--r--block/nfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/nfs.c b/block/nfs.c
index c24df49747..f737e19cd3 100644
--- a/block/nfs.c
+++ b/block/nfs.c
@@ -843,7 +843,7 @@ static void nfs_refresh_filename(BlockDriverState *bs)
     }
 }
 
-static char *nfs_dirname(BlockDriverState *bs, Error **errp)
+static char * GRAPH_RDLOCK nfs_dirname(BlockDriverState *bs, Error **errp)
 {
     NFSClient *client = bs->opaque;