linux-kernel - Re: [-mm PATCH 5/10] Memory controller task migration (v7)

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Message-Id: <20070827082635.195471BFA2C@siro.lan>
Date:	Mon, 27 Aug 2007 17:26:35 +0900 (JST)
From:	yamamoto@...inux.co.jp (YAMAMOTO Takashi)
To:	balbir@...ux.vnet.ibm.com
Cc:	akpm@...ux-foundation.org, npiggin@...e.de, a.p.zijlstra@...llo.nl,
	dhaval@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, ebiederm@...ssion.com,
	containers@...ts.osdl.org, menage@...gle.com, xemul@...nvz.org
Subject: Re: [-mm PATCH 5/10] Memory controller task migration (v7)

> Allow tasks to migrate from one container to the other. We migrate
> mm_struct's mem_container only when the thread group id migrates.

> +	/*
> +	 * Only thread group leaders are allowed to migrate, the mm_struct is
> +	 * in effect owned by the leader
> +	 */
> +	if (p->tgid != p->pid)
> +		goto out;

does it mean that you can't move a process between containers
once its thread group leader exited?

YAMAMOTO Takashi
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