Hello, On 07/26/2010 09:57 PM, Michael S. Tsirkin wrote: >> For freeze, it probably is okay but for stop, I think it's better to >> keep the semantics straight forward. > > What are the semantics then? What do we want stop followed > by queue and flush to do? One scenario I can think of is the following. kthread_worker allows kthreads to be attached and stopped anytime, so if the caller stops the current worker while flushing is pending and attaches a new worker, the flushing which was pending will never happen. But, in general, it's nasty to allow execution and its completion to be separated. Things like that are likely to bite us back in obscure ways. I think it would be silly to have such oddity in generic code when it can be avoided without too much trouble. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
