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Date: Thu, 19 Jan 2012 15:03:20 +1100 (EST)
From: James Morris <jmorris@namei.org>
To: David Howells <dhowells@redhat.com>
cc: keyrings@linux-nfs.org, linux-security-module@vger.kernel.org,
        linux-kernel@vger.kernel.org, Jeff Layton <jlayton@redhat.com>,
        Steve Dickson <steved@redhat.com>
Subject: Re: [PATCH] KEYS: Allow special keyrings to be cleared
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On Wed, 18 Jan 2012, David Howells wrote:

> The kernel contains some special internal keyrings, for instance the DNS
> resolver keyring :
> 
> 2a93faf1 I-----     1 perm 1f030000     0     0 keyring   .dns_resolver: empty
> 
> It would occasionally be useful to allow the contents of such keyrings to be
> flushed by root (cache invalidation).
> 

Applied to
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next-queue