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authorMiaohe Lin <linmiaohe@huawei.com>2019-09-29 11:06:58 +0300
committerTejun Heo <tj@kernel.org>2019-10-07 17:01:09 +0300
commit61e867fde21ea94f2166899f24f16cad85cc7b24 (patch)
treee605042ea7666a1c90fa01fb9e353bbfc32d926c /kernel/cgroup
parentda0c9ea146cbe92b832f1b0f694840ea8eb33cce (diff)
downloadlinux-61e867fde21ea94f2166899f24f16cad85cc7b24.tar.xz
cgroup: short-circuit current_cgns_cgroup_from_root() on the default hierarchy
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@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/cgroup')
-rw-r--r--kernel/cgroup/cgroup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 080561bb8a4b..f6cba23290a1 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;