linux-ext4 - Re: [PATCH] ext4: Add support for SFITRIM, an ioctl for secure FITRIM.

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Date:	Thu, 19 Jun 2014 22:44:28 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Lukáš Czerner <lczerner@...hat.com>
Cc:	Dave Chinner <david@...morbit.com>,
	"Theodore Ts'o" <tytso@....edu>, JP Abgrall <jpa@...gle.com>,
	Eric Sandeen <sandeen@...hat.com>, linux-ext4@...r.kernel.org,
	Geremy Condra <gcondra@...gle.com>,
	"linux-fsdevel\@vger.kernel.org" <linux-fsdevel@...r.kernel.org>
Subject: Re: [PATCH] ext4: Add support for SFITRIM, an ioctl for secure FITRIM.

>>>>> "Lukáš" == Lukáš Czerner <lczerner@...hat.com> writes:

>> Scrubbing is something people already understand and it's clear that
>> it's a data manipulation operation and not some magic "secure"
>> operation. And by calling it "scrub" we get away from the idea that
>> it only works on specific hardware - hardware acceleration is good,
>> but there's no reason why we should design the functionality to only
>> be useful on systems with hardware scrubbing capability...

Lukáš> +1 for the "scrub" operation, it makes perfect sense to me.

I'm not sure I agree with the choice of "scrub" to describe this:

	http://en.wikipedia.org/wiki/Data_scrubbing

What about purge or sanitize? That's what the security folks generally
use...

-- 
Martin K. Petersen	Oracle Linux Engineering
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