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| author | Anton Altaparmakov <aia21@cantab.net> | 2005-06-26 22:19:40 +0100 |
|---|---|---|
| committer | Anton Altaparmakov <aia21@cantab.net> | 2005-06-26 22:19:40 +0100 |
| commit | 2a322e4c08be4e7cb0c04b427ddaaa679fd88863 (patch) | |
| tree | ad8cc17bfd3b5e57e36f07a249028667d72f0b96 /drivers/base/cpu.c | |
| parent | ba6d2377c85c9b8a793f455d8c9b6cf31985d70f (diff) | |
| parent | 8678887e7fb43cd6c9be6c9807b05e77848e0920 (diff) | |
Automatic merge with /usr/src/ntfs-2.6.git.
Diffstat (limited to 'drivers/base/cpu.c')
| -rw-r--r-- | drivers/base/cpu.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 6ef3069b57107..b79badd0f1588 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; |