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Date: Sun, 19 Oct 2003 12:08:00 +0400
From: Hans Reiser <reiser@namesys.com>
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To: Larry McVoy <lm@bitmover.com>
CC: Norman Diamond <ndiamond@wta.att.ne.jp>,
       Wes Janzen <superchkn@sbcglobal.net>,
       Rogier Wolff <R.E.Wolff@BitWizard.nl>,
       John Bradford <john@grabjohn.com>, linux-kernel@vger.kernel.org,
       nikita@namesys.com, Pavel Machek <pavel@ucw.cz>,
       Justin Cormack <justin@street-vision.com>,
       Russell King <rmk+lkml@arm.linux.org.uk>,
       Vitaly Fertman <vitaly@namesys.com>, Krzysztof Halasa <khc@pm.waw.pl>
Subject: Re: Blockbusting news, results are in
References: <1c6401c395e7$16630d00$3eee4ca5@DIAMONDLX60> <20031019041553.GA25372@work.bitmover.com>
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Larry McVoy wrote:

>
>
>I've told you guys over and over that you need to CRC the data in user
>space, we do that in our backup scripts and it tells us when the drives
>are going bad.  S
>
Why do the CRC in user space, that requires modifying every one of 7000+ applications (if I understand you correctly, which is far from a sure thing;-) )?

Write a reiser4 CRC file plugin.  It would take a weekend, and most of the work would be cut and pasting from the default file plugin..  

I understand why you do it in BK, but for user space as a whole user space is the wrong place.