Re: [PATCH net-next v1 1/3] connector/cn_proc: Add hash table for threads

On Sun, Oct 13, 2024 at 10:06:15AM -0700, Anjali Kulkarni wrote:

• if (unlikely(task->flags & PF_EXIT_NOTIFY)) {

• task_lock(task);
  

• task->flags &= ~PF_EXIT_NOTIFY;
  

• task_unlock(task);
  

@@ -413,6 +440,15 @@ static void cn_proc_mcast_ctl(struct cn_msg *msg, if (msg->len == sizeof(*pinput)) { pinput = (struct proc_input *)msg->data; mc_op = pinput->mcast_op;

• if (mc_op == PROC_CN_MCAST_NOTIFY) {
  

• 	pr_debug("%s: Received PROC_CN_MCAST_NOTIFY, pid %d\n",
  

• 			__func__, current->pid);
  

• 	task_lock(current);
  

• 	current->flags |= PF_EXIT_NOTIFY;
  

• 	task_unlock(current);
  

• 	err = cn_add_elem(pinput->uexit_code, current->pid);
  

• 	return;
  

• }
  

You seem to think that task_lock protects task->flags ? Why?