This patch series consists of two parts: the first four patches change the way events are allocated and what to do when the event queue is full. These first four patches are the most important ones to review. The big change is that event allocation now happens when subscribing an event. So you not only specify which event you want to subscribe to for a particular filehandle, but also how many events should be reserved for that event type. Currently the driver specifies the number of events to allocate, but later this can be something that the application might want to set manually. This ensures that for each event type you will never entirely miss all events of a particular type. Currently this is a real possibility. The other change is that instead of dropping the new event if there is no more space available, the oldest event is dropped. This ensures that you get at least the latest state. And optionally a merge function can be provided that merges information of two events into one. This allows the control event to require just one event: if a new event is raised, then the new and old one can be merged and all state is preserved. Only the intermediate steps are no longer available. This makes for very good behavior of events and is IMHO a requirement for using the control event in a real production environment. The second four patches reorganize the way extended controls are processed in the control framework. This is the first step towards allowing control changes from within interrupt handlers. The main purpose is to move as much code as possible out of the critical sections. This reduces the size of those sections, making it easier to eventually switch to spinlocks for certain kinds of controls. It's lots of internal churn, so it's probably not easy to review. There are no real functional changes, however. Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
