linux-kernel - Re: [RFC][v8][PATCH 0/10] Implement clone3() system call

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Date:	Fri, 23 Oct 2009 16:12:19 -0700
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Oren Laadan <orenl@...rato.com>
Cc:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>,
	randy.dunlap@...cle.com, arnd@...db.de, linux-api@...r.kernel.org,
	Containers <containers@...ts.linux-foundation.org>,
	Nathan Lynch <nathanl@...tin.ibm.com>,
	linux-kernel@...r.kernel.org, Louis.Rilling@...labs.com,
	kosaki.motohiro@...fujitsu.com, hpa@...or.com, mingo@...e.hu,
	Pavel Emelyanov <xemul@...nvz.org>,
	torvalds@...ux-foundation.org,
	Alexey Dobriyan <adobriyan@...il.com>, roland@...hat.com
Subject: Re: [RFC][v8][PATCH 0/10] Implement clone3() system call

Oren Laadan <orenl@...rato.com> writes:


> I stand corrected by Suka: a pid-specific clone does not change
> last_pid. Therefore, given that 'restart' only creates tasks with
> pid-specific clone, this should be safe for c/r.

Exactly.  We can preserve the existing guarantees and keep the ability
to restore any pid (at least in a fresh pid namespace).

Eric
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