vllm

abfcdcdf - [V1][Minor] Avoid frequently creating ConstantList (#12653)

[V1][Minor] Avoid frequently creating ConstantList (#12653) A small optimization to avoid creating a new `ConstantList` every time `request.kv_block_hashes` is used. Signed-off-by: Woosuk Kwon <woosuk.kwon@berkeley.edu>