On 2/2/07, Magnus Damm <[email protected]> wrote:
On 2/2/07, Andrew Morton <[email protected]> wrote:
> Magnus Damm <[email protected]> wrote:
>
> > kexec: Fix CONFIG_SMP=n compilation (ia64)
> >
> > This patch makes it possible to compile kexec for ia64 without SMP support.
> > --- 0002/arch/ia64/kernel/machine_kexec.c
> > +++ work/arch/ia64/kernel/machine_kexec.c 2007-02-01 12:35:46.000000000 +0900
> > @@ -70,12 +70,14 @@ void machine_kexec_cleanup(struct kimage
> >
> > void machine_shutdown(void)
> > {
> > +#ifdef CONFIG_SMP
> > int cpu;
> >
> > for_each_online_cpu(cpu) {
> > if (cpu != smp_processor_id())
> > cpu_down(cpu);
> > }
> > +#endif
> > kexec_disable_iosapic();
> > }
>
> hm. I suspect this one should have been #ifndef CONFIG_HOTPLUG_CPU?
Re-reading this I assume you mean #ifdef CONFIG_HOTPLUG_CPU.
I would be happy to resend a new updated version of the patch, but I
wonder if it may be better to fail miserably during the build than
fail silently in the case of CONFIG_SMP=y but CONFIG_HOTPLUG_CPU=n.
Any ideas?
Nan hai, is there any particular reason why the ia64 kexec code builds
on top of cpu hotplug instead of smp functions such as
smp_send_stop()?
Thanks!
/ magnus
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