On Thu, 23 Apr 2009, Gregory Haskins wrote: > > Take a look at init_waitqueue_func_entry(), in particula at that "func" > > parameter. Then look at how __wake_up_common() does its thing. > > You don't need to be "waiting" for our wakeup system to work. Callbacks > > works just fine, otherwise things like epoll could not work at all. > > > > Yeah, I was looking at that this afternoon after you mentioned it. That > makes sense. > > As of right now the wqh is embedded in the eventfd, accessible only by > the .read() vtable entry. In order to do this as you suggest, I imagine > I need to slightly modify the eventfd interface to allow waiters other > than the embedded readers to join the wait-queue. How would you like to > see that interface look? Actually, you need no changes in eventfd, since you can use its poll() directly, by dropping a callback entry. Take a look at how epoll does it in ep_insert()... - Davide -- 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
