linux-kernel - Re: [PATCH 4/4] keys: make procfiles per-user-namespace

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Message-ID: <20090223204041.GA31626@us.ibm.com>
Date:	Mon, 23 Feb 2009 14:40:41 -0600
From:	"Serge E. Hallyn" <serue@...ibm.com>
To:	David Howells <dhowells@...hat.com>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Linux Containers <containers@...ts.osdl.org>
Subject: Re: [PATCH 4/4] keys: make procfiles per-user-namespace

Quoting David Howells (dhowells@...hat.com):
> Serge E. Hallyn <serue@...ibm.com> wrote:
> 
> > Restrict the /proc/keys and /proc/key-users output to keys
> > belonging to the same user namespace as the reading task.
> > 
> > We may want to make this more complicated - so that any
> > keys in a user-namespace which is belongs to the reading
> > task are also shown.  But let's see if anyone wants that
> > first.
> 
> Hmmm...  I wonder if we can do better by making the file position indicate the
> key ID rather than being a count of the number of keys read.  It might make
> this cleaner.

file position?  as in the result of lseek(fd, 0, SEEK_CUR)?

I don't understand what you're suggesting.

-serge
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