Hello, On Thu, Mar 08, 2018 at 08:29:53AM +0800, Lai Jiangshan wrote: > I mentioned a subtle use case that user would think it is supported > since the comment doesn't disallow it. > > It is clear that the user expects > the work must be called at least once after the API returns > the work must be called after an RCU grace period > > But in the case when the user expects the work must be called > at least once again after "queue_rcu_work() + an RCU grace period", > the API is not competent to it if the work is queued. > Although the user can detect it by the return value of > queue_rcu_work(), the user hardly makes his expectation > happen by adding appropriate code.
We should definitely document it better but it isn't any different from delayed_work, and I don't see a reason to deviate. Thanks. -- tejun
