--- /dev/null
+From chenridong@huaweicloud.com Tue Feb 17 13:36:53 2026
+From: Chen Ridong <chenridong@huaweicloud.com>
+Date: Wed, 14 Jan 2026 01:51:29 +0000
+Subject: cpuset: Fix missing adaptation for cpuset_is_populated
+To: gregkh@linuxfoundation.org
+Cc: stable@vger.kernel.org, chenridong@huaweicloud.com, lujialin4@huawei.com
+Message-ID: <20260114015129.1156361-1-chenridong@huaweicloud.com>
+
+From: Chen Ridong <chenridong@huawei.com>
+
+Commit b1bcaed1e39a ("cpuset: Treat cpusets in attaching as populated")
+was backported to the long‑term support (LTS) branches. However, because
+commit d5cf4d34a333 ("cgroup/cpuset: Don't track # of local child
+partitions") was not backported, a corresponding adaptation to the
+backported code is still required.
+
+To ensure correct behavior, replace cgroup_is_populated with
+cpuset_is_populated in the partition_is_populated function.
+
+Cc: stable@vger.kernel.org # 6.1+
+Fixes: b1bcaed1e39a ("cpuset: Treat cpusets in attaching as populated")
+Cc: Waiman Long <longman@redhat.com>
+Cc: Tejun Heo <tj@kernel.org>
+Signed-off-by: Chen Ridong <chenridong@huawei.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ kernel/cgroup/cpuset.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/kernel/cgroup/cpuset.c
++++ b/kernel/cgroup/cpuset.c
+@@ -509,7 +509,7 @@ static inline bool partition_is_populate
+ cs->attach_in_progress)
+ return true;
+ if (!excluded_child && !cs->nr_subparts_cpus)
+- return cgroup_is_populated(cs->css.cgroup);
++ return cpuset_is_populated(cs);
+
+ rcu_read_lock();
+ cpuset_for_each_descendant_pre(cp, pos_css, cs) {