恢复误删代码

vllm/v1/worker/gpu_model_runner.py

@@ -5538,6 +5538,10 @@ class GPUModelRunner(
             ValueError: If no valid block size found
         """
 
+        #exclude indexer backend
+        def _participates_in_block_size_selection(backend: type[AttentionBackend]) -> bool:
+            return not getattr(backend, "exclude_from_block_size_selection", False)
+
         def block_size_is_supported(
             backends: list[type[AttentionBackend]], block_size: int
         ) -> bool: