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-rw-r--r--include/linux/cgroup.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index c6c703f2486b..793f70a48820 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -144,8 +144,8 @@ struct cgroup {
/*
* idr allocated in-hierarchy ID.
*
- * The ID of the root cgroup is always 0, and a new cgroup
- * will be assigned with a smallest available ID.
+ * ID 0 is not used, the ID of the root cgroup is always 1, and a
+ * new cgroup will be assigned with a smallest available ID.
*
* Allocating/Removing ID must be protected by cgroup_mutex.
*/
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