[PATCH] revert "noirqbalance still doesn't do anything"

This recent patch caused Nick Piggin's 2xPIII VIA686B chipset machine into an
interrupts-off lockup during IDE probing.

We don't really know why - it might be because an interrupt is delivered to a
secondary which doesn't expect it.

I have a second patch from Zwane which solves the same problem in a different
way, but until that's had some wider testing I suggest we just back off the
original.

include/asm-i386/mach-bigsmp/mach_apic.h

@@ -19,7 +19,7 @@ static inline int apic_id_registered(void)
 }
 
 #define APIC_DFR_VALUE	(APIC_DFR_CLUSTER)
-#define TARGET_CPUS	((cpu_callout_map < 0xf)?cpu_callout_map:0xf)
+#define TARGET_CPUS	((cpu_online_map < 0xf)?cpu_online_map:0xf)
 
 #define INT_DELIVERY_MODE dest_LowestPrio
 #define INT_DEST_MODE 1     /* logical delivery broadcast to all procs */

include/asm-i386/mach-default/mach_apic.h

@@ -4,7 +4,7 @@
 #define APIC_DFR_VALUE	(APIC_DFR_FLAT)
 
 #ifdef CONFIG_SMP
- #define TARGET_CPUS (cpu_callout_map)
+ #define TARGET_CPUS (cpu_online_map)
 #else
  #define TARGET_CPUS 0x01
 #endif

include/asm-i386/mach-summit/mach_apic.h

@@ -13,7 +13,7 @@ extern int x86_summit;
 		((phys_apic) & XAPIC_DEST_CLUSTER_MASK) )
 
 #define APIC_DFR_VALUE	(x86_summit ? APIC_DFR_CLUSTER : APIC_DFR_FLAT)
-#define TARGET_CPUS	(x86_summit ? XAPIC_DEST_CPUS_MASK : cpu_callout_map)
+#define TARGET_CPUS	(x86_summit ? XAPIC_DEST_CPUS_MASK : cpu_online_map)
 
 #define INT_DELIVERY_MODE (x86_summit ? dest_Fixed : dest_LowestPrio)
 #define INT_DEST_MODE 1     /* logical delivery broadcast to all procs */