linux-kernel - Re: [Patch] proc: drop write permission on 'timer

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Date:	Mon, 17 Aug 2009 12:41:54 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Pekka Enberg <penberg@...helsinki.fi>
cc:	Ingo Molnar <mingo@...e.hu>, Amerigo Wang <amwang@...hat.com>,
	linux-kernel@...r.kernel.org,
	Vegard Nossum <vegard.nossum@...il.com>,
	Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>,
	Thomas Gleixner <tglx@...utronix.de>, linux-mm@...ck.org,
	David Rientjes <rientjes@...gle.com>,
	Matt Mackall <mpm@...enic.com>,
	Arjan van de Ven <arjan@...ux.intel.com>
Subject: Re: [Patch] proc: drop write permission on 'timer_list' and
 'slabinfo'

On Mon, 17 Aug 2009, Pekka Enberg wrote:

> > slab needs the write permissions for tuning!
>
> Oh, crap, you're right, I had forgotten about that. It's probably best to keep
> slub permissions as-is, no?

slub perms can be changed. The patch is okay for that. But there is no
write method in slub. Effectively it makes no difference. Just the
display is nicer in /proc.


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