On Wed, Nov 18, 2015 at 6:48 AM, Chris Wilson <[email protected]> wrote: > Although > > diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h > index d2abbdb..ff4f029 100644 > --- a/include/linux/stop_machine.h > +++ b/include/linux/stop_machine.h > @@ -97,7 +97,7 @@ static inline int try_stop_cpus(const struct cpumask > *cpumask, > * grabbing every spinlock (and more). So the "read" side to such a > * lock is anything which disables preemption. > */ > -#if defined(CONFIG_STOP_MACHINE) && defined(CONFIG_SMP) > +#if defined(CONFIG_SMP) || defined(CONFIG_HOTPLUG_CPU)
[...] This seems much better. Having a set of stop_machine functions around that don't work depending on config seems dangerous. --Andy -- 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/
