On Wed, Feb 21, 2007 at 12:23:44PM -0800, Andrew Morton wrote: > On Fri, 16 Feb 2007 18:08:42 -0800
> > +int select_nohz_load_balancer(int stop_tick) > > +{ > > + int cpu = smp_processor_id(); > > + > > + if (stop_tick) { > > + cpu_set(cpu, nohz.cpu_mask); > > + cpu_rq(cpu)->in_nohz_recently = 1; > > + > > + /* > > + * If we are going offline and still the leader, give up! > > + */ > > + if (cpu_is_offline(cpu) && nohz.load_balancer == cpu) { > > + if (cmpxchg(&nohz.load_balancer, cpu, -1) != cpu) > > So we require that architectures which implement CONFIG_NO_HZ also > implement cmpxchg. Just use atomic_cmpxchg, please. - 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/