linux-kernel - Re: [PATCH? 3/3] move daemonized kernel threads into the swapper's session

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Message-ID: <m14pf8omvz.fsf@ebiederm.dsl.xmission.com>
Date:	Mon, 26 Nov 2007 11:57:36 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Oleg Nesterov <oleg@...sign.ru>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Pavel Emelyanov <xemul@...nvz.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH? 3/3] move daemonized kernel threads into the swapper's session

Oleg Nesterov <oleg@...sign.ru> writes:

> Any reason why daemonized kthread still uses 1,1 special pids? This patch
> sets 0,0 pids, this matches kthread_create'ed threads.

You got it in your reply...

> Signed-off-by: Oleg Nesterov <oleg@...sign.ru>

Acked-by: "Eric W. Biederman" <ebiederm@...ssion.com>

Hmm.  I wonder if we could ensure kernel_thread always
returns a global pid_t, and then reallocate the struct
pid for the task we have just daemonized so that it only
has a single pid in the init_pid_ns.

That would remove our capturing of child pid namespaces.

Eric
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