block: Mark bdrv_filter_bs() and callers GRAPH_RDLOCK

[mirror_qemu.git] / block / cloop.c

diff --git a/block/cloop.c b/block/cloop.c
index 835a0fe3da0a189f154869116aca41e542497278..773d7918bec0eafbcc5b930805ae17630c028c46 100644 (file)
--- a/block/cloop.c
+++ b/block/cloop.c
@@ -67,7 +67,9 @@ static int cloop_open(BlockDriverState *bs, QDict *options, int flags,
     uint32_t offsets_size, max_compressed_block_size = 1, i;
     int ret;
 
+    bdrv_graph_rdlock_main_loop();
     ret = bdrv_apply_auto_read_only(bs, NULL, errp);
+    bdrv_graph_rdunlock_main_loop();
     if (ret < 0) {
         return ret;
     }