linux-kernel - Re: [RFC][PATCH 2/4] sunrpc: Use utsnamespaces

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Message-Id: <1231283734.8041.6.camel@heimdal.trondhjem.org>
Date:	Tue, 06 Jan 2009 18:15:34 -0500
From:	Trond Myklebust <trond.myklebust@....uio.no>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	"Serge E. Hallyn" <serue@...ibm.com>,
	Matt Helsley <matthltc@...ibm.com>,
	Linux Containers <containers@...ts.linux-foundation.org>,
	linux-nfs@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	Chuck Lever <chuck.lever@...cle.com>,
	Linux Containers <containers@...ts.osdl.org>,
	Cedric Le Goater <clg@...ibm.com>
Subject: Re: [RFC][PATCH 2/4] sunrpc: Use utsnamespaces

On Tue, 2009-01-06 at 15:04 -0800, Eric W. Biederman wrote:
> That implies to me you want to capture the value at mount time, and to
> pass it in to the rpc_call creation, and only at very specific well
> defined points where we interact with user space should we examine
> current->utsname().  At which point there should be no question
> of current->utsname() is valid as the user space process is alive.

Why pretend that the filesystem is owned by a particular namespace? It
can, and will be shared among many containers...

Trond

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