linux-kernel - Re: [malware-list] TALPA - a threat model? well sorta.

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Message-ID: <20080814191726.GG22488@mit.edu>
Date:	Thu, 14 Aug 2008 15:17:26 -0400
From:	Theodore Tso <tytso@....edu>
To:	Eric Paris <eparis@...hat.com>
Cc:	tvrtko.ursulin@...hos.com, alan@...rguk.ukuu.org.uk,
	andi@...stfloor.org, Arjan van de Ven <arjan@...radead.org>,
	hch@...radead.org, linux-kernel@...r.kernel.org,
	malware-list@...ts.printk.net,
	malware-list-bounces@...sg.printk.net, peterz@...radead.org,
	viro@...IV.linux.org.uk
Subject: Re: [malware-list] TALPA - a threat model?  well sorta.

On Thu, Aug 14, 2008 at 01:29:45PM -0400, Eric Paris wrote:
> 
> is i_version an on disk think?  didn't realize that and just assumed it
> was in in core thing.  I wouldn't have an issue sending i_version to the
> userspace scanner for them to use as they like.
> 

It's on-disk for some filesystems, in order to support NFsv4 advanced
caching semantics (which means i_version has to survive a reboot,
which means it has to be on disk).  It is *not* on disk for ext3,
although it is for ext4.

					- Ted
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