Re: [PATCH 1/5] sched: Convert thread_group_cputime() to use for_each_thread()

From: Oleg Nesterov
Date: Wed Apr 09 2014 - 13:13:20 EST


On 04/09, Frederic Weisbecker wrote:
>
> @@ -295,16 +295,15 @@ void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times)
>
> rcu_read_lock();
> /* make sure we can trust tsk->thread_group list */
> - if (!likely(pid_alive(tsk)))
> + if (!likely(pid_alive(p)))

You can simply remove this check now. for_each_thread() is always safe.

Oleg.

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