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Diffstat (limited to 'block/block-backend.c')
-rw-r--r-- | block/block-backend.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index 146ef91547..fdb1e1d5f7 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -2644,6 +2644,8 @@ int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in, if (r) { return r; } + + GRAPH_RDLOCK_GUARD(); return bdrv_co_copy_range(blk_in->root, off_in, blk_out->root, off_out, bytes, read_flags, write_flags); |