Like commit 13d82fb77abb ("cgroup: short-circuit cset_cgroup_from_root() on
the default hierarchy"), short-circuit current_cgns_cgroup_from_root() on
the default hierarchy.
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
kernel/cgroup/cgroup.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 8be1da1ebd9a..b90c8b200aa2 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -1374,6 +1374,8 @@ current_cgns_cgroup_from_root(struct cgroup_root *root)
cset = current->nsproxy->cgroup_ns->root_cset;
if (cset == &init_css_set) {
res = &root->cgrp;
+ } else if (root == &cgrp_dfl_root) {
+ res = cset->dfl_cgrp;
} else {
struct cgrp_cset_link *link;
--
2.21.GIT
