Merge osdl.org:/home/mochel/src/kernel/devel/linux-2.5-virgin

into osdl.org:/home/mochel/src/kernel/devel/linux-2.5-core

arch/i386/kernel/time.c

@@ -281,19 +281,19 @@ unsigned long get_cmos_time(void)
 	return retval;
 }
 
-static struct sysdev_class rtc_sysclass = {
-	set_kset_name("rtc"),
+static struct sysdev_class pit_sysclass = {
+	set_kset_name("pit"),
 };
 
 /* XXX this driverfs stuff should probably go elsewhere later -john */
 static struct sys_device device_i8253 = {
 	.id	= 0,
-	.cls	= &rtc_sysclass,
+	.cls	= &pit_sysclass,
 };
 
 static int time_init_device(void)
 {
-	int error = sysdev_class_register(&rtc_sysclass);
+	int error = sysdev_class_register(&pit_sysclass);
 	if (!error)
 		error = sys_device_register(&device_i8253);
 	return error;

drivers/base/sys.c

@@ -218,9 +218,6 @@ void sys_device_unregister(struct sys_device * sysdev)
 		if (drv->remove)
 			drv->remove(sysdev);
 	}
-
-	list_del_init(&sysdev->entry);
-
 	up_write(&system_subsys.rwsem);
 
 	kobject_unregister(&sysdev->kobj);

include/linux/sysdev.h

@@ -72,7 +72,6 @@ struct sys_device {
 	u32		id;
 	struct sysdev_class	* cls;
 	struct kobject		kobj;
-	struct list_head	entry;
 };
 
 extern int sys_device_register(struct sys_device *);

lib/kobject.c

@@ -100,6 +100,9 @@ static void fill_kobj_path(struct kset *kset, struct kobject *kobj, char *path,
 
 #define BUFFER_SIZE	1024	/* should be enough memory for the env */
 #define NUM_ENVP	32	/* number of env pointers */
+static unsigned long sequence_num;
+static spinlock_t sequence_lock = SPIN_LOCK_UNLOCKED;
+
 static void kset_hotplug(const char *action, struct kset *kset,
 			 struct kobject *kobj)
 {
@@ -112,6 +115,7 @@ static void kset_hotplug(const char *action, struct kset *kset,
 	int kobj_path_length;
 	char *kobj_path = NULL;
 	char *name = NULL;
+	unsigned long seq;
 
 	/* If the kset has a filter operation, call it. If it returns
 	   failure, no hotplug event is required. */
@@ -152,6 +156,13 @@ static void kset_hotplug(const char *action, struct kset *kset,
 	envp [i++] = scratch;
 	scratch += sprintf(scratch, "ACTION=%s", action) + 1;
 
+	spin_lock(&sequence_lock);
+	seq = sequence_num++;
+	spin_unlock(&sequence_lock);
+
+	envp [i++] = scratch;
+	scratch += sprintf(scratch, "SEQNUM=%ld", seq) + 1;
+
 	kobj_path_length = get_kobj_path_length (kset, kobj);
 	kobj_path = kmalloc (kobj_path_length, GFP_KERNEL);
 	if (!kobj_path)