cgroup: move list add after list head initilization
2243076ad1 ("cgroup: initialize cgrp->allcg_node in
init_cgroup_housekeeping()") initializes cgrp->allcg_node in
init_cgroup_housekeeping(). Then in init_cgroup_root(), we should
call init_cgroup_housekeeping() before adding it to &root->allcg_list;
otherwise, we are initializing an entry already in a list.
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 55a0a77..c02b055 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1401,8 +1401,8 @@
root->number_of_cgroups = 1;
cgrp->root = root;
cgrp->top_cgroup = cgrp;
- list_add_tail(&cgrp->allcg_node, &root->allcg_list);
init_cgroup_housekeeping(cgrp);
+ list_add_tail(&cgrp->allcg_node, &root->allcg_list);
}
static bool init_root_id(struct cgroupfs_root *root)