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Message-ID: <1287403048.29097.1553.camel@twins>
Date: Mon, 18 Oct 2010 13:57:28 +0200
From: Peter Zijlstra <peterz@...radead.org>
To: Eric Paris <eparis@...hat.com>
Cc: Eric Paris <eparis@...isplace.org>,
Mimi Zohar <zohar@...ux.vnet.ibm.com>,
Christoph Hellwig <hch@...radead.org>,
Dave Chinner <david@...morbit.com>,
linux-kernel@...r.kernel.org, Mimi Zohar <zohar@...ibm.com>,
warthog9@...nel.org, hpa@...or.com, devel@...ts.fedoraprojet.org
Subject: Re: ima: use of radix tree cache indexing == massive waste of
memory?
On Sun, 2010-10-17 at 10:16 -0400, Eric Paris wrote:
> If instead you attack the problem from the other side and start with all
> of the files we'd need some kind of freezer to so we could get the
> atomicity required. We'd have to review every single file on the system
> before we could be certain that the inode was correct. Maybe I'm wrong
> and someone else can help me see how to solve it this way....
Well, you could use the actual freezer to freeze luserspace and then
simply iterate all open files, I mean, those few sods who actually want
this enabled can either pass a boot option to enable from boot or suffer
the overhead on enable, right?
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