linux-kernel - Re: [PATCH] proc_oom_score: remove tasklist_lock and pid

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Date:	Wed, 8 Jun 2016 15:48:42 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Oleg Nesterov <oleg@...hat.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Michal Hocko <mhocko@...nel.org>,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] proc_oom_score: remove tasklist_lock and pid_alive()

On Wed, 8 Jun 2016, Oleg Nesterov wrote:

> This was needed before to ensure that ->signal != 0 and do_each_thread()
> is safe, see the commit b95c35e76b29b for details.
> 
> Today tsk->signal can't go away and for_each_thread(tsk) is always safe.
> 
> Signed-off-by: Oleg Nesterov <oleg@...hat.com>

Acked-by: David Rientjes <rientjes@...gle.com>