linux-kernel - Re: [PATCH 0/2] ima: policy search speedup

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Date:	Tue, 11 Dec 2012 13:35:26 -0500
From:	Eric Paris <eparis@...isplace.org>
To:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Kasatkin, Dmitry" <dmitry.kasatkin@...el.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	LSM List <linux-security-module@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	James Morris <jmorris@...ei.org>
Subject: Re: [PATCH 0/2] ima: policy search speedup

On Tue, Dec 11, 2012 at 1:18 PM, Mimi Zohar <zohar@...ux.vnet.ibm.com> wrote:

> The appraisal policy is based on the object metadata, such as the uid,
> so the result is static and can be cached.  The measurement policy, on
> the other hand, is normally based on the subject (eg. who is
> reading/executing) the file.  Knowledge of whether the file has been
> measured is cached in the iint, but unlike the appraisal policy, not
> whether it needs to be measured.  Having the flag on a per inode basis,
> doesn't really help.

Can you try again?  Even I can't parse this.  Not sure what to tell
you to try again, maybe give us a summary at a high level again and
then why this patch is specifically necessary?
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