linux-kernel - Re: [PATCH v4 1/2] IMA: Define workqueue for early boot "key" measurements

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Message-Id: <1576580064.4579.374.camel@linux.ibm.com>
Date:   Tue, 17 Dec 2019 05:54:24 -0500
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>,
        linux-integrity@...r.kernel.org
Cc:     eric.snowberg@...cle.com, dhowells@...hat.com,
        mathew.j.martineau@...ux.intel.com, matthewgarrett@...gle.com,
        sashal@...nel.org, jamorris@...ux.microsoft.com,
        linux-kernel@...r.kernel.org, keyrings@...r.kernel.org
Subject: Re: [PATCH v4 1/2] IMA: Define workqueue for early boot "key"
 measurements

On Mon, 2019-12-16 at 15:44 -0800, Lakshmi Ramasubramanian wrote:
> On 12/16/2019 4:30 AM, Mimi Zohar wrote:
> 
> >> +
> >> +		if (!list_empty(&ima_keys)) {
> >> +			list_for_each_entry_safe(entry, tmp, &ima_keys, list)
> >> +				list_move_tail(&entry->list, &temp_ima_keys);
> >> +			process = true;
> >> +		}
> >> +	}
> >> +
> >> +	mutex_unlock(&ima_keys_mutex);
> >> +
> >> +	if (!process)
> >> +		return;
> > 
> > The new changes - checking if the list is empty and this test - are
> > unnecessary, as you implied earlier.
> > 
> > Mimi
> 
> Do you want me to remove this check? I feel it is safer to have this 
> check - use a local flag "process" to return if no keys were moved to 
> the temp list. Would like to leave it as is - if you don't mind.

Sure