x86 MCE: Fix CPU hotplug problem with multiple multicore AMD CPUs

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / cpu / mcheck / mce_64.c

diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 65a339678ece817b3b27fa56afb5ee97aae8d027..726a5fcdf34113efe492ecdaa324308aa1a61fbd 100644 (file)
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -759,6 +759,7 @@ static struct sysdev_class mce_sysclass = {
 };
 
 DEFINE_PER_CPU(struct sys_device, device_mce);
+void (*threshold_cpu_callback)(unsigned long action, unsigned int cpu) __cpuinitdata;
 
 /* Why are there no generic functions for this? */
 #define ACCESSOR(name, var, start) \
@@ -883,9 +884,13 @@ static int __cpuinit mce_cpu_callback(struct notifier_block *nfb,
        case CPU_ONLINE:
        case CPU_ONLINE_FROZEN:
                mce_create_device(cpu);
+               if (threshold_cpu_callback)
+                       threshold_cpu_callback(action, cpu);
                break;
        case CPU_DEAD:
        case CPU_DEAD_FROZEN:
+               if (threshold_cpu_callback)
+                       threshold_cpu_callback(action, cpu);
                mce_remove_device(cpu);
                break;
        }