[FS-Offloading] Batch Lookup in C (#46713)

Signed-off-by: <>
Co-authored-by: Varun Sundar Rabindranath <varun-sundar-rabindranath@h100-01.nemg-001.lab.rdu2.dc.redhat.com>

setup.py

@@ -777,6 +777,7 @@ class precompiled_wheel_utils:
                             "vllm/vllm_flash_attn/_vllm_fa3_C.abi3.so",
                             "vllm/cumem_allocator.abi3.so",
                             "vllm/spinloop.abi3.so",
+                            "vllm/fs_io_C.abi3.so",
                             # ROCm-specific libraries
                             "vllm/_rocm_C.abi3.so",
                         }
@@ -1104,6 +1105,7 @@ if _is_cuda() or _is_hip():
 
 if sys.version_info >= (3, 11):
     ext_modules.append(CMakeExtension(name="vllm.spinloop"))
+    ext_modules.append(CMakeExtension(name="vllm.fs_io_C"))
 
 if _is_hip():
     ext_modules.append(CMakeExtension(name="vllm._rocm_C"))