On Thu, 3 Apr 2014 10:40:59 +0100, Mark Brown <broo...@kernel.org> wrote: > On Thu, Apr 03, 2014 at 10:12:07AM +0300, Peter Ujfalusi wrote: > > When the kernel is built with CONFIG_PREEMPT it is possible to reach a state > > when all modules loaded but some driver still stuck in the deferred list > > and there is a need for external event to kick the deferred queue to probe > > these drivers. > > Acked-by: Mark Brown <broo...@linaro.org>
It's a pretty crude solution though. The problem is any "in-flight" probes that are going to defer will not get added to the active list. Rerunning the entire active list is a bit much (but it does have the advantage of still being conceptually simple). I think we can do better. Instead of running the entire list, we could add a check to driver_deferred_probe_add() that adds the device to the active list instead of pending list on the condition that another driver probe completed while the deferred probe was in-flight. I'm playing with a solution now. I'll email a proposal shortly. g. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/