linux-kernel - Re: [PATCH 7/10] 9p: sysfs support for in-kenel servers

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Message-ID: <Pine.LNX.4.64.0711031121250.5395@schroedinger.engr.sgi.com>
Date:	Sat, 3 Nov 2007 11:22:03 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Peter Zijlstra <peterz@...radead.org>
cc:	Greg KH <greg@...ah.com>, Latchesar Ionkov <lucho@...kov.net>,
	v9fs-developer@...ts.sourceforge.net,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 7/10] 9p: sysfs support for in-kenel servers

On Sat, 3 Nov 2007, Peter Zijlstra wrote:

> On Fri, 2007-11-02 at 20:48 -0700, Greg KH wrote:
> 
> > Also, a sysfs file that causes an action to happen just by reading the
> > file is not a safe thing to have.  Lots of scripts have been known to
> > just walk the whole sysfs tree and open and read everything they can for
> > no real good reason.  So you should seriously reconsider this kind of
> > interaction.
> 
> Christoph, doesn't SLUB do exactly that?

SLUB gathers statistics and summaries and displays them on read.

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