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Re: TALPA - a threat model? well sorta.

From:  Alan Cox <alan-qBU/x9rampVanCEyBjwyrvXRex20P6io-AT-public.gmane.org>
To:  Theodore Tso <tytso-3s7WtUTddSA-AT-public.gmane.org>
Subject:  Re: TALPA - a threat model? well sorta.
Date:  Fri, 15 Aug 2008 09:51:43 +0100
Message-ID:  <20080815095143.65c5912b@lxorguk.ukuu.org.uk>
Cc:  david-gFPdbfVZQbY-AT-public.gmane.org, peterz-wEGCiKHe2LqWVfeAwA7xHQ-AT-public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA-AT-public.gmane.org, malware-list-1eKJwtMnTOdcMpApZELgcQ-AT-public.gmane.org, Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ-AT-public.gmane.org>, viro-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn-AT-public.gmane.org, andi-Vw/NltI1exuRpAAqCnN02g-AT-public.gmane.org, Arjan, malware-list-bounces-h+Im9A44IAFcMpApZELgcQ-AT-public.gmane.org, van de Ven <arjan-wEGCiKHe2LqWVfeAwA7xHQ-AT-public.gmane.org>
Archive-link:  Article

> According to Eric Paris the clean/dirty state is only stored in
> memory.  We could use the extended attribute interface as a way of not
> defining a new system call, or some other interface, but I'm not sure
> it's such a great match given that the extended attributes interface
> are designed for persistent data.

This is another application layer matter. At the end of the day why does
the kernel care where this data is kept. For all we know someone might
want to centralise it or even distribute it between nodes on a clustered
file system.

Alan


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