hut it down and free all the supporting stuff while leaving zombie wq
struct which noops execution and let the whole thing go away when refs reach
zero?

Thanks.

-- 
tejun[PATCH v3 1/2] rust: workqueue: restrict delayed work to global wqsTejun Heo <tj@kernel.org> undefinedAlice Ryhl <aliceryhl@google.com> undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined undefined‡