On 09/24/2012 06:14 PM, Peter Zijlstra wrote: > On Mon, 2012-09-24 at 18:06 +0200, Avi Kivity wrote: >> >> We would probably need a ->sched_exit() preempt notifier to make this >> work. Peter, I know how much you love those, would it be acceptable? > > Where exactly do you want this? TASK_DEAD? or another exit? TASK_DEAD of the task that registered the preempt notifier. The idea is that I want to hold on to the notifier even when exiting to userspace. Since userspace is under no obligation to call kvm again, I need a chance to unregister the notifier and otherwise clean up. Eh, looking at the code, we'll have a ->sched_out() after the state is set to TASK_DEAD. So all we need to do is examine the state. We'll need to examine the state anyway to see if we were preempted or blocking. -- error compiling committee.c: too many arguments to function -- 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
