On Fri, Jan 27, 2017 at 10:25:08PM +0000, Andy Ng wrote: > the wake_up from a non threaded isr in RT will end up to try to get > the spin_lock of of that wait_queue, but this kind of locking in not > allowed in non threaded isr and therefore the use of wake_up_locked > does not touches the spin_locks of the queue... and it seems to work And, have you convinced yourself that this is a safe operation to perform without taking the lock? In other words, how are you preventing this interrupt from firing when a thread is in process of manipulating the wake queue? Julia PS. There is a "simple" waitqueue implementation which may or may not fit what you want to do. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
