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Date: Fri, 06 Feb 2004 17:15:16 -0800
From: Hans Reiser <reiser@namesys.com>
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To: Jamie Lokier <jamie@shareable.org>
CC: Valdis.Kletnieks@vt.edu, the grugq <grugq@hcunix.net>,
       Pavel Machek <pavel@ucw.cz>, linux-kernel@vger.kernel.org
Subject: Re: PATCH - ext2fs privacy (i.e. secure deletion) patch
References: <4017E3B9.3090605@hcunix.net> <20040203222030.GB465@elf.ucw.cz> <40203DE1.3000302@hcunix.net> <200402040320.i143KCaD005184@turing-police.cc.vt.edu> <20040207002010.GF12503@mail.shareable.org>
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Jamie Lokier wrote:

>Valdis.Kletnieks@vt.edu wrote:
>  
>
>>Actually, I have encountered file systems where two successive
>>write() calls from userspace to the same offset in the file wouldn't
>>end up in the same physical location on the disk (AIX's JFS with compression).
>>    
>>
>
>See also:
>
>    - ext3 with data journalling
>
>    - reiser4 with wandering logs
>
>    - experimental ext? patches for tail-packing small files
>
>-- Jamie
>-
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>  
>
reiser4 probably does not need secure deletion as much as others, 
because once the encryption plugins are debugged we will most likely 
encourage users to use encryption by default.  Perhaps someone will show 
the error in my thinking though, I am not trying to be rigid here....