From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Morton <akpm@osdl.org>
Subject: Re: silent semantic changes with reiser4
Date: Thu, 26 Aug 2004 02:49:56 -0700
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Spam <spam@tnonline.net> wrote:
>
>    Yes,  for  example  documents,  image  files  etc. The multiple data
>    streams  can  contain thumbnails, info about who is editing the file
>    (useful for networked files) etc. Could be used for version handling
>    and much more.

All of which can be handled in userspace library code.

What compelling reason is there for doing this in the kernel?