Messages in this thread Patch in this message | | | From | Xiu Jianfeng <> | Subject | [PATCH -next] cgroup: Remove out-of-date comment in cgroup_migrate() | Date | Tue, 23 May 2023 19:14:56 +0800 |
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From: Xiu Jianfeng <xiujianfeng@huawei.com>
Commit 674b745e22b3 ("cgroup: remove rcu_read_lock()/rcu_read_unlock() in critical section of spin_lock_irq()") has removed the rcu_read_lock, which makes the comment out-of-date, so remove it.
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com> --- kernel/cgroup/cgroup.c | 5 ----- 1 file changed, 5 deletions(-)
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index d8ba2c67910d..415d51c713ad 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -2871,11 +2871,6 @@ int cgroup_migrate(struct task_struct *leader, bool threadgroup, { struct task_struct *task; - /* - * Prevent freeing of tasks while we take a snapshot. Tasks that are - * already PF_EXITING could be freed from underneath us unless we - * take an rcu_read_lock. - */ spin_lock_irq(&css_set_lock); task = leader; do { -- 2.17.1
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