linux-kernel - Re: [PATCH 09/11] pidns: Add setns support

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Message-ID: <50A9F7DE.60807@cn.fujitsu.com>
Date:	Mon, 19 Nov 2012 17:11:58 +0800
From:	Gao feng <gaofeng@...fujitsu.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	Linux Containers <containers@...ts.linux-foundation.org>,
	linux-kernel@...r.kernel.org, Oleg Nesterov <oleg@...sign.ru>,
	Serge Hallyn <serge@...lyn.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 09/11] pidns: Add setns support

于 2012年11月17日 00:35, Eric W. Biederman 写道:
> From: "Eric W. Biederman" <ebiederm@...ssion.com>
> 
> - Pid namespaces are designed to be inescapable so verify that the
>   passed in pid namespace is a child of the currently active
>   pid namespace or the currently active pid namespace itself.
> 
>   Allowing the currently active pid namespace is important so
>   the effects of an earlier setns can be cancelled.
> 
> Signed-off-by: Eric W. Biederman <ebiederm@...ssion.com>
> ---

Hi Eric

I noticed that,after we call setns to change task's pidns to container A's pidns.
we can't see this task in container A's proc filesystem.

Is this what we expected?

Thanks
Gao
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