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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2015-01-21 17:28:23 +0100
committerSteven Rostedt <rostedt@goodmis.org>2015-02-03 18:48:42 +0100
commitcc31004a4aa784d89054ec07b87eae05cecf7121 (patch)
tree423a36a0c918f4c368ddc82da2d4f33668861c68 /fs/tracefs
parenttracing: Automatically mount tracefs on debugfs/tracing (diff)
downloadlinux-cc31004a4aa784d89054ec07b87eae05cecf7121.tar.xz
linux-cc31004a4aa784d89054ec07b87eae05cecf7121.zip
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>
Diffstat (limited to 'fs/tracefs')
-rw-r--r--fs/tracefs/inode.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/tracefs/inode.c b/fs/tracefs/inode.c
index 5b1547a452d8..0b9cf5cf24c9 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 @@ bool tracefs_initialized(void)
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;