sysfs/cpu: Add probe/release files

[pandora-kernel.git] / drivers / base / cpu.c

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index e62a4cc..7c03af7 100644 (file)
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -72,6 +72,38 @@ void unregister_cpu(struct cpu *cpu)
        per_cpu(cpu_sys_devices, logical_cpu) = NULL;
        return;
 }
+
+#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
+static ssize_t cpu_probe_store(struct class *class, const char *buf,
+                              size_t count)
+{
+       return arch_cpu_probe(buf, count);
+}
+
+static ssize_t cpu_release_store(struct class *class, const char *buf,
+                                size_t count)
+{
+       return arch_cpu_release(buf, count);
+}
+
+static CLASS_ATTR(probe, S_IWUSR, NULL, cpu_probe_store);
+static CLASS_ATTR(release, S_IWUSR, NULL, cpu_release_store);
+
+int __init cpu_probe_release_init(void)
+{
+       int rc;
+
+       rc = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
+                              &class_attr_probe.attr);
+       if (!rc)
+               rc = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
+                                      &class_attr_release.attr);
+
+       return rc;
+}
+device_initcall(cpu_probe_release_init);
+#endif /* CONFIG_ARCH_CPU_PROBE_RELEASE */
+
 #else /* ... !CONFIG_HOTPLUG_CPU */
 static inline void register_cpu_control(struct cpu *cpu)
 {