tracefs: Add directory /sys/kernel/tracing
When tracefs is configured, have the directory /sys/kernel/tracing appear
just like /sys/kernel/debug appears when debugfs is configured.
This will give a consistent place for system admins to mount tracefs.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 5b1547a..0b9cf5c 100644
--- a/fs/tracefs/inode.c
+++ b/fs/tracefs/inode.c
@@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/mount.h>
+#include <linux/kobject.h>
#include <linux/namei.h>
#include <linux/tracefs.h>
#include <linux/fsnotify.h>
@@ -509,10 +510,16 @@
return tracefs_registered;
}
+static struct kobject *trace_kobj;
+
static int __init tracefs_init(void)
{
int retval;
+ trace_kobj = kobject_create_and_add("tracing", kernel_kobj);
+ if (!trace_kobj)
+ return -EINVAL;
+
retval = register_filesystem(&trace_fs_type);
if (!retval)
tracefs_registered = true;