i386-specific part of the new mechanism to allow debuggers to learn
about starting/dying CPUs as early/late as possible.

Signed-Off-By: Jan Beulich <jbeulich@novell.com>

Index: 2.6.14-nlkd/arch/i386/kernel/smpboot.c
===================================================================
--- 2.6.14-nlkd.orig/arch/i386/kernel/smpboot.c	2005-11-09 10:40:17.000000000 +0100
+++ 2.6.14-nlkd/arch/i386/kernel/smpboot.c	2005-11-04 16:19:33.000000000 +0100
@@ -486,6 +486,7 @@ static void __devinit start_secondary(vo
 	smp_callin();
 	while (!cpu_isset(smp_processor_id(), smp_commenced_mask))
 		rep_nop();
+	cpu_notify(CPU_ALIVE);
 	setup_secondary_APIC_clock();
 	if (nmi_watchdog == NMI_IO_APIC) {
 		disable_8259A_irq(0);
@@ -970,6 +971,7 @@ void cpu_exit_clear(void)
 	int cpu = raw_smp_processor_id();
 
 	idle_task_exit();
+	cpu_notify(CPU_DYING);
 
 	cpucount --;
 	cpu_uninit();