From d5307ce022d0af0790b06af48a77465db0458d6f Mon Sep 17 00:00:00 2001
From: Yilong Zhao <74357408+happierpig@users.noreply.github.com>
Date: Mon, 16 Feb 2026 20:14:15 -0800
Subject: [PATCH] [misc] adding metadata field in UpdateWeightFromDiskReqInput
 (#18821)

---
 python/sglang/srt/managers/io_struct.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/python/sglang/srt/managers/io_struct.py b/python/sglang/srt/managers/io_struct.py
index c80b54be5..b1f143b6c 100644
--- a/python/sglang/srt/managers/io_struct.py
+++ b/python/sglang/srt/managers/io_struct.py
@@ -1309,6 +1309,8 @@ class UpdateWeightFromDiskReqInput(BaseReq):
     token_step: int = 0
     # Whether to flush the cache after updating weights
     flush_cache: bool = True
+    # Tensor metadata
+    manifest: Optional[Dict[str, Any]] = None
 
 
 @dataclass