On Tuesday 27 May 2008 12:15:03 Matthew Wilcox wrote: > On Tue, May 27, 2008 at 11:17:22AM +1000, Rusty Russell wrote: > > On Tuesday 27 May 2008 03:29:14 Michal Schmidt wrote: > > > Mutexes are not allowed in interrupt context, not even mutex_trylock. > > > > As an aside, does anyone know why? I know the documentation says so, but > > it wasn't immediately obvious to me. I asked before to no response... > > Because mutexes have an owner. In interrupt context, there is no owner. > This owner is used to do priority boosts as well as debugging. Shows how little I know, I didn't see priority boosting in my glance thru mutex.c. But it seems like mutex_trylock_irq would be easy to add if needed, if only for clarity. Thanks! Rusty. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
