Re: SMP syncronization on AMD processors (broken?)
From: Andi Kleen
Date: Mon Oct 10 2005 - 20:20:54 EST
On Tuesday 11 October 2005 02:59, Andrew Morton wrote:
> > I'm not advocating for changing spinlock implementation, it's just a
> > thought...
> It would make sense in these cases if there was some primitive which we
> could call which says "hey, I expect+want another CPU to grab this lock in
> preference to this CPU".
I just don't know how to implement such a primitive given the guarantees
of the x86 architecture. It might be possible to do something that
works on specific CPUs, but that will likely break later.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/