linux-kernel - Re: [PATCH 9/9] userns: check user namespace for task->file uid equivalence checks

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Message-Id: <20110223210808.21966b17.akpm@linux-foundation.org>
Date:	Wed, 23 Feb 2011 21:08:08 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Serge E. Hallyn" <serge@...lyn.com>
Cc:	LSM <linux-security-module@...r.kernel.org>,
	James Morris <jmorris@...ei.org>,
	Kees Cook <kees.cook@...onical.com>,
	containers@...ts.linux-foundation.org,
	kernel list <linux-kernel@...r.kernel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Michael Kerrisk <mtk.manpages@...il.com>, xemul@...allels.com,
	dhowells@...hat.com
Subject: Re: [PATCH 9/9] userns: check user namespace for task->file uid
 equivalence checks

On Thu, 24 Feb 2011 03:24:16 +0000 "Serge E. Hallyn" <serge@...lyn.com> wrote:

> Quoting Andrew Morton (akpm@...ux-foundation.org):
> > On Thu, 17 Feb 2011 15:04:07 +0000
> > "Serge E. Hallyn" <serge@...lyn.com> wrote:
> > 
> > There's a fairly well adhered to convention that global symbols (and
> > often static symbols) have a prefix which identifies the subsystem to
> > which they belong.  This patchset rather scorns that convention.
> > 
> > Most of these identifiers are pretty obviously from the capability
> > subsystem, but still...
> 
> Would 'inode_owner_or_capable' be better and and make sense?
> 

I suppose so.  We've totally screwed that pooch in the VFS (grep EXPORT
fs/inode.c).  But it's never to late to start.

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