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Message-ID: <20080827023142.GB2320@us.ibm.com>
Date: Tue, 26 Aug 2008 21:31:42 -0500
From: "Serge E. Hallyn" <serue@...ibm.com>
To: Oleg Nesterov <oleg@...sign.ru>
Cc: Andrew Morton <akpm@...ux-foundation.org>,
"Eric W. Biederman" <ebiederm@...ssion.com>,
Pavel Emelyanov <xemul@...nvz.org>,
Robert Rex <robert.rex@...sol.com>,
Roland McGrath <roland@...hat.com>,
Sukadev Bhattiprolu <sukadev@...ibm.com>,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] pid_ns: de_thread: kill the now unneeded
->child_reaper change
Quoting Oleg Nesterov (oleg@...sign.ru):
> de_thread() checks if the old leader was the ->child_reaper, this is not
> possible any longer. With the previous patch ->group_leader itself will
> change ->child_reaper on exit.
Neat.
> >From now find_new_reaper() is the only function (apart from initialization)
> which plays with ->child_reaper.
>
> Signed-off-by: Oleg Nesterov <oleg@...sign.ru>
Acked-by: Serge Hallyn <serue@...ibm.com>
>
> --- 2.6.27-rc4/fs/exec.c~3_EXEC 2008-07-30 13:12:47.000000000 +0400
> +++ 2.6.27-rc4/fs/exec.c 2008-08-24 19:20:05.000000000 +0400
> @@ -825,8 +825,6 @@ static int de_thread(struct task_struct
> schedule();
> }
>
> - if (unlikely(task_child_reaper(tsk) == leader))
> - task_active_pid_ns(tsk)->child_reaper = tsk;
> /*
> * The only record we have of the real-time age of a
> * process, regardless of execs it's done, is start_time.
--
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