From: Christoph Hellwig <hch@infradead.org>
To: Arjan van de Ven <arjan@infradead.org>
Cc: Mimi Zohar <zohar@us.ibm.com>,
Christoph Hellwig <hch@infradead.org>,
akpm@osdl.org, kjhall@linux.vnet.ibm.com,
linux-kernel@vger.kernel.org, safford@watson.ibm.com
Subject: Re: mprotect abuse in slim
Date: Tue, 9 Jan 2007 09:46:25 +0000 [thread overview]
Message-ID: <20070109094625.GA11918@infradead.org> (raw)
In-Reply-To: <1168312045.3180.140.camel@laptopd505.fenrus.org>
On Mon, Jan 08, 2007 at 07:07:25PM -0800, Arjan van de Ven wrote:
>
> > Starting with the fdtable, would it help if we move the
> > fdtable tweaking out of slim itself and into helpers? Or
> > can you recommend another way to implement this functionality.
>
> Hi,
>
> maybe this is a silly question, but do you revoke not only the current
> fd entries, but also the ones that are pending in UNIX domain sockets
> and that are already being sent to the process? If not.. then you might
> as well not bother ;)
Exactly. What these folks want is revoke (maybe more fine grained, but
that's not the point). And guess what folks, revoke is not trivial,
otherwise we'd have it. If you want to volunteer to implement a full-blown
revoke that's fine, but
a) it belongs into core code
b) needs to be done right
next prev parent reply other threads:[~2007-01-09 9:49 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-08 13:41 mprotect abuse in slim Christoph Hellwig
2007-01-08 22:38 ` Mimi Zohar
2007-01-09 3:07 ` Arjan van de Ven
2007-01-09 9:46 ` Christoph Hellwig [this message]
2007-01-09 20:54 ` Chris Wright
2007-01-09 23:14 ` Serge E. Hallyn
2007-01-10 7:21 ` Pekka J Enberg
2007-01-10 15:58 ` Serge E. Hallyn
2007-01-11 7:39 ` Pekka Enberg
2007-01-11 15:49 ` Serge E. Hallyn
2007-01-12 7:43 ` Pekka Enberg
2007-01-12 15:17 ` Serge E. Hallyn
2007-01-12 9:45 ` Pekka Enberg
2007-01-12 19:28 ` Serge E. Hallyn
2007-01-12 19:53 ` Pekka J Enberg
2007-01-09 21:30 ` Mimi Zohar
2007-01-09 19:27 ` Valdis.Kletnieks
2007-01-09 21:45 ` Mimi Zohar
2007-01-11 14:35 ` Pavel Machek
2007-01-12 20:08 ` Mimi Zohar
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