From: Miaohe Lin <linmiaohe@huawei.com>
Date: Tue, 4 Jul 2023 11:30:49 +0000 (+0800)
Subject: cgroup/cpuset: simplify the percpu kthreads check in update_tasks_cpumask()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a453be9725a1aa3f602f5b4c66eefd1fb4ba7c44;p=linux.git

cgroup/cpuset: simplify the percpu kthreads check in update_tasks_cpumask()

kthread_is_per_cpu() can be called directly without checking whether
PF_KTHREAD is set in task->flags. So remove PF_KTHREAD check to make
code more concise.

Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 58e6f18f01c1b..601c40da8e033 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -1230,7 +1230,7 @@ static void update_tasks_cpumask(struct cpuset *cs, struct cpumask *new_cpus)
 			/*
 			 * Percpu kthreads in top_cpuset are ignored
 			 */
-			if ((task->flags & PF_KTHREAD) && kthread_is_per_cpu(task))
+			if (kthread_is_per_cpu(task))
 				continue;
 			cpumask_andnot(new_cpus, possible_mask, cs->subparts_cpus);
 		} else {