From 9a1abff21b5288ec81b3958e7c85c4df832276f0 Mon Sep 17 00:00:00 2001
From: Christian Krafft <krafft@de.ibm.com>
Date: Tue, 24 Oct 2006 18:31:24 +0200
Subject: [PATCH] --- yaml --- r: 42182 b: refs/heads/master c:
 0344c6c5387ba335bba5a66fd44714b94c98573f h: refs/heads/master v: v3

---
 [refs]                            |  2 +-
 trunk/arch/powerpc/kernel/sysfs.c | 66 +++++++++++++++++++++++++++++++
 trunk/include/linux/cpu.h         |  8 ++++
 3 files changed, 75 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index f895ad6e920a..f1b58cc76d29 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e570beb6bb1a623849901efbf939063ec4775c9e
+refs/heads/master: 0344c6c5387ba335bba5a66fd44714b94c98573f
diff --git a/trunk/arch/powerpc/kernel/sysfs.c b/trunk/arch/powerpc/kernel/sysfs.c
index d45a168bdaca..cda21a27490a 100644
--- a/trunk/arch/powerpc/kernel/sysfs.c
+++ b/trunk/arch/powerpc/kernel/sysfs.c
@@ -299,6 +299,72 @@ static struct notifier_block __cpuinitdata sysfs_cpu_nb = {
 	.notifier_call	= sysfs_cpu_notify,
 };
 
+static DEFINE_MUTEX(cpu_mutex);
+
+int cpu_add_sysdev_attr(struct sysdev_attribute *attr)
+{
+	int cpu;
+
+	mutex_lock(&cpu_mutex);
+
+	for_each_possible_cpu(cpu) {
+		sysdev_create_file(get_cpu_sysdev(cpu), attr);
+	}
+
+	mutex_unlock(&cpu_mutex);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cpu_add_sysdev_attr);
+
+int cpu_add_sysdev_attr_group(struct attribute_group *attrs)
+{
+	int cpu;
+	struct sys_device *sysdev;
+
+	mutex_lock(&cpu_mutex);
+
+	for_each_possible_cpu(cpu) {
+		sysdev = get_cpu_sysdev(cpu);
+		sysfs_create_group(&sysdev->kobj, attrs);
+	}
+
+	mutex_unlock(&cpu_mutex);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cpu_add_sysdev_attr_group);
+
+
+void cpu_remove_sysdev_attr(struct sysdev_attribute *attr)
+{
+	int cpu;
+
+	mutex_lock(&cpu_mutex);
+
+	for_each_possible_cpu(cpu) {
+		sysdev_remove_file(get_cpu_sysdev(cpu), attr);
+	}
+
+	mutex_unlock(&cpu_mutex);
+}
+EXPORT_SYMBOL_GPL(cpu_remove_sysdev_attr);
+
+void cpu_remove_sysdev_attr_group(struct attribute_group *attrs)
+{
+	int cpu;
+	struct sys_device *sysdev;
+
+	mutex_lock(&cpu_mutex);
+
+	for_each_possible_cpu(cpu) {
+		sysdev = get_cpu_sysdev(cpu);
+		sysfs_remove_group(&sysdev->kobj, attrs);
+	}
+
+	mutex_unlock(&cpu_mutex);
+}
+EXPORT_SYMBOL_GPL(cpu_remove_sysdev_attr_group);
+
+
 /* NUMA stuff */
 
 #ifdef CONFIG_NUMA
diff --git a/trunk/include/linux/cpu.h b/trunk/include/linux/cpu.h
index 3fef7d67aedc..f02d71bf6894 100644
--- a/trunk/include/linux/cpu.h
+++ b/trunk/include/linux/cpu.h
@@ -33,6 +33,14 @@ struct cpu {
 
 extern int register_cpu(struct cpu *cpu, int num);
 extern struct sys_device *get_cpu_sysdev(unsigned cpu);
+
+extern int cpu_add_sysdev_attr(struct sysdev_attribute *attr);
+extern void cpu_remove_sysdev_attr(struct sysdev_attribute *attr);
+
+extern int cpu_add_sysdev_attr_group(struct attribute_group *attrs);
+extern void cpu_remove_sysdev_attr_group(struct attribute_group *attrs);
+
+
 #ifdef CONFIG_HOTPLUG_CPU
 extern void unregister_cpu(struct cpu *cpu);
 #endif