On Tue, May 23, 2023 at 07:14:56PM +0800, Xiu Jianfeng wrote: > From: Xiu Jianfeng <xiujianfeng@xxxxxxxxxx> > > 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 which makes the comment out-of-date, so remove it.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@xxxxxxxxxx> So, that removed rcu_read_lock() because it's implied by the irq disable but the comment content is still useful in describing what's preventing use-after-free. Can you please update the comment accordingly instead? Thanks. -- tejun