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authorJeff Garzik <jgarzik@pretzel.yyz.us>2005-06-26 18:06:06 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-06-26 18:06:06 -0400
commitaef7b83c92dd0b7e994805440655d1d64147287b (patch)
tree981f373358c1988e061625e8f272013065cb086f /drivers/base/cpu.c
parentb1fc5505e0dbcc3fd7c75bfe6bee39ec50080963 (diff)
parent8678887e7fb43cd6c9be6c9807b05e77848e0920 (diff)
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'drivers/base/cpu.c')
-rw-r--r--drivers/base/cpu.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 6ef3069b571..b79badd0f15 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -16,6 +16,11 @@ struct sysdev_class cpu_sysdev_class = {
EXPORT_SYMBOL(cpu_sysdev_class);
#ifdef CONFIG_HOTPLUG_CPU
+int __attribute__((weak)) smp_prepare_cpu (int cpu)
+{
+ return 0;
+}
+
static ssize_t show_online(struct sys_device *dev, char *buf)
{
struct cpu *cpu = container_of(dev, struct cpu, sysdev);
@@ -36,7 +41,11 @@ static ssize_t store_online(struct sys_device *dev, const char *buf,
kobject_hotplug(&dev->kobj, KOBJ_OFFLINE);
break;
case '1':
- ret = cpu_up(cpu->sysdev.id);
+ ret = smp_prepare_cpu(cpu->sysdev.id);
+ if (!ret)
+ ret = cpu_up(cpu->sysdev.id);
+ if (!ret)
+ kobject_hotplug(&dev->kobj, KOBJ_ONLINE);
break;
default:
ret = -EINVAL;