linux-kernel - Re: [PATCH] integrity: add ima_counts

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Date:	Mon, 29 Jun 2009 23:12:29 +0900
From:	hooanon05@...oo.co.jp
To:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, James Morris <jmorris@...ei.org>,
	David Safford <safford@...son.ibm.com>,
	Mimi Zohar <zohar@...ibm.com>
Subject: Re: [PATCH] integrity: add ima_counts_put (updated) 


Mimi Zohar:
> This patch fixes an imbalance message as reported by J.R. Okajima.
> The IMA file counters are incremented in ima_path_check. If the
> actual open fails, such as ETXTBSY, decrement the counters to
> prevent unnecessary imbalance messages.

Although I have no objection for this fix, I'd like to suggest you to
stop incrementing the counters in ima_path_check().
A while ago IMA_COUNT_LEAVE and ima_counts_get() were introduced, and
now ima_counts_put() appears.
Isn't it easier something like this,
- stop incrementing in ima_path_check().
- call ima_counts_get() in dentry_open() (or similar).
- delete IMA_COUNT_LEAVE/UPDATE and ima_counts_put().

How do you think?


J. R. Okajima
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