From: Wei Yang <richard.weiyang@linux.alibaba.com>
Date: Fri, 25 Sep 2020 09:11:10 +0000 (+0800)
Subject: cgroup: remove redundant kernfs_activate in cgroup_setup_root()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=95d325185c06cbef1c5be97825265a7129a03512;p=linux.git

cgroup: remove redundant kernfs_activate in cgroup_setup_root()

This step is already done in rebind_subsystems().

Not necessary to do it again.

Signed-off-by: Wei Yang <richard.weiyang@linux.alibaba.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index dd247747ec14a..809b135881246 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -2006,7 +2006,6 @@ int cgroup_setup_root(struct cgroup_root *root, u16 ss_mask)
 	BUG_ON(!list_empty(&root_cgrp->self.children));
 	BUG_ON(atomic_read(&root->nr_cgrps) != 1);
 
-	kernfs_activate(root_cgrp->kn);
 	ret = 0;
 	goto out;