linux-kernel - Re: [RFC][PATCH 0/4] Object creation with a specified id

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Message-ID: <20080415030623.GA8171@tull.net>
Date:	Tue, 15 Apr 2008 13:06:23 +1000
From:	Nick Andrew <nick@...k-andrew.net>
To:	Nadia.Derbey@...l.net
Cc:	linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org, orenl@...columbia.edu
Subject: Re: [RFC][PATCH 0/4] Object creation with a specified id

On Fri, Apr 04, 2008 at 04:51:29PM +0200, Nadia.Derbey@...l.net wrote:
>    . echo "LONG XX" > /proc/self/next_id
>      next object to be created will have an id set to XX
>    . echo "LONG<n> X0 ... X<n-1>" > /proc/self/next_id
>      next object to be created will have its ids set to XX0, ... X<n-1>
>      This is particularly useful for processes that may have several ids if
>      they belong to nested namespaces.

How do you handle race conditions, i.e. you specify the ID for the
next object to be created, and then some other thread goes and creates
an object before your thread creates one?

Nick.
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