From 39431592e93530d7f543e3d7204a8f9a062e6ac7 Mon Sep 17 00:00:00 2001 From: Chen Ridong Date: Mon, 22 Sep 2025 13:02:32 +0000 Subject: [PATCH] cpuset: remove impossible warning in update_parent_effective_cpumask If the parent is not a valid partition, an error will be returned before any partition update command is processed. This means the WARN_ON_ONCE(!is_partition_valid(parent)) can never be triggered, so it is safe to remove. Signed-off-by: Chen Ridong Acked-by: Waiman Long Signed-off-by: Tejun Heo --- kernel/cgroup/cpuset.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index 20dface3c3e0e..196645b38b248 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -1923,7 +1923,6 @@ static int update_parent_effective_cpumask(struct cpuset *cs, int cmd, * A partition error happens when parent has tasks and all * its effective CPUs will have to be distributed out. */ - WARN_ON_ONCE(!is_partition_valid(parent)); if (nocpu) { part_error = PERR_NOCPUS; if (is_partition_valid(cs)) -- 2.47.3