cgroup: Make Kconfig prompt of debug cgroup more accurate
The Kconfig prompt and description of the debug cgroup controller
more accurate by saying that it is for debug purpose only and its
interfaces are unstable.
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/kernel/cgroup/debug.c b/kernel/cgroup/debug.c
index 1c209aa..cbe77a2 100644
--- a/kernel/cgroup/debug.c
+++ b/kernel/cgroup/debug.c
@@ -1,3 +1,9 @@
+/*
+ * Debug controller
+ *
+ * WARNING: This controller is for cgroup core debugging only.
+ * Its interfaces are unstable and subject to changes at any time.
+ */
#include <linux/ctype.h>
#include <linux/mm.h>
#include <linux/slab.h>
