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-rw-r--r--net/sched/cls_cgroup.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index af412ab2b477..9e6b75e5efce 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -50,9 +50,11 @@ static struct cgroup_subsys_state *cgrp_css_alloc(struct cgroup *cgrp)
static int cgrp_css_online(struct cgroup *cgrp)
{
- if (cgrp->parent)
- cgrp_cls_state(cgrp)->classid =
- cgrp_cls_state(cgrp->parent)->classid;
+ struct cgroup_cls_state *cs = cgrp_cls_state(cgrp);
+ struct cgroup_cls_state *parent = css_cls_state(css_parent(&cs->css));
+
+ if (parent)
+ cs->classid = parent->classid;
return 0;
}