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

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Message-ID: <20091023004253.GA7915@us.ibm.com>
Date:	Thu, 22 Oct 2009 17:42:53 -0700
From:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Matt Helsley <matthltc@...ibm.com>,
	Oren Laadan <orenl@...rato.com>,
	Daniel Lezcano <daniel.lezcano@...e.fr>,
	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,
	torvalds@...ux-foundation.org,
	Alexey Dobriyan <adobriyan@...il.com>, roland@...hat.com,
	Pavel Emelyanov <xemul@...nvz.org>
Subject: Re: [RFC][v8][PATCH 0/10] Implement clone3() system call

Eric W. Biederman [ebiederm@...ssion.com] wrote:
| +static int set_pidmap(struct pid_namespace *pid_ns, int target)
| +{
| +	if (target >= pid_max)
| +		return -1;

I am changing this and the next return to 'return -EINVAL', to match
an earlier patch in my patchset.

| +	if (target < RESERVED_PIDS)

Should we replace RESERVED_PIDS with 0 ? We currently allow new
containers to have pids 1..32K in the first pass and in subsequent
passes assign starting at RESERVED_PIDS.

Sukadev
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