linux-kernel - Re: [PATCH 2/4] userns: let copy_ipcs handle setting ipc_ns->user

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Message-ID: <4D6238E6.1060402@free.fr>
Date:	Mon, 21 Feb 2011 11:05:26 +0100
From:	Daniel Lezcano <daniel.lezcano@...e.fr>
To:	"Serge E. Hallyn" <serge@...lyn.com>
CC:	Andrew Morton <akpm@...l.org>, Oleg Nesterov <oleg@...hat.com>,
	LSM <linux-security-module@...r.kernel.org>,
	James Morris <jmorris@...ei.org>,
	Kees Cook <kees.cook@...onical.com>,
	containers@...ts.linux-foundation.org,
	kernel list <linux-kernel@...r.kernel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Michael Kerrisk <mtk.manpages@...il.com>, xemul@...allels.com,
	dhowells@...hat.com
Subject: Re: [PATCH 2/4] userns: let copy_ipcs handle setting ipc_ns->user_ns

On 02/21/2011 05:02 AM, Serge E. Hallyn wrote:
> To do that, we have to pass in the task_struct of the task which
> will own the ipc_ns, so we can assign its user_ns.
>
> Signed-off-by: Serge E. Hallyn<serge.hallyn@...onical.com>
> ---
>   include/linux/ipc_namespace.h |    8 +++++---
>   ipc/namespace.c               |   12 +++++++-----
>   kernel/nsproxy.c              |    7 +------
>   3 files changed, 13 insertions(+), 14 deletions(-)
>
> diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
> index 46d2eb4..9974429 100644
> --- a/include/linux/ipc_namespace.h
> +++ b/include/linux/ipc_namespace.h
> @@ -92,7 +92,8 @@ static inline int mq_init_ns(struct ipc_namespace *ns) { return 0; }
>   #endif
>
>   #if defined(CONFIG_IPC_NS)
> -extern struct ipc_namespace *copy_ipcs(unsigned long flags,
> +extern struct ipc_namespace *copy_ipcs(struct task_struct *tsk,
> +				       unsigned long flags,
>   				       struct ipc_namespace *ns);

Same comment than patch 1/4
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