On Tue, 2007-11-13 at 11:05 +0100, Peter Zijlstra wrote: > Looking at the code: > > /* radix tree not lockless safe ! we use a brlock-type mecanism > * for now, until we can use a lockless radix tree > */ > static void irq_radix_wrlock(unsigned long *flags) > > The RCU radix tree stuffs have gone upstream long ago. > > Anyway, it seems its the generic irq stuff that uses raw_spinlock_t > and > disables IRQs, so there isn't much we can do from the ARCH level I'm > afraid :-( > > Ingo, any sane ideas?
As discussed on IRC< there are a couple of other related issues, though part of them go away if I can get rid of the brlock I have in there thanks to the new RCU based radix tree. I'll give that some thoughts and come back to you tomorrow or thursday hopefully with a patch. Cheers, Ben. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
