linux-kernel - Re: Secure file deletion option question

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Date:	Wed, 13 Apr 2011 14:31:08 -0400
From:	Ric Wheeler <ricwheeler@...il.com>
To:	Marco Stornelli <marco.stornelli@...il.com>
CC:	Linux FS Devel <linux-fsdevel@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: Secure file deletion option question

On 04/13/2011 01:49 PM, Marco Stornelli wrote:
> Hi all,
>
> I don't see any fs implements that feature. The flag FS_SECRM_FL seems never 
> used with the exception of some define in some fs. Is there a motivation for 
> this? It seems a good option to me.
>
> Marco

I think that most secure deletion code is done from user space, which can deal 
with odd storage types and so on. Just deleting and overwriting the blocks with 
zero data is not sufficient for some needs.

Having user space tools deal with the myriad of ways that it could be done keeps 
the policy out of the kernel...

Ric

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