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From: Daniel Phillips <phillips@bonn-fries.net>
To: Pavel Machek <pavel@suse.cz>, Andrew Morton <akpm@zip.com.au>
Subject: Re: 2.4.14-pre6
Date: Mon, 5 Nov 2001 00:16:30 +0100
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Cc: Neil Brown <neilb@cse.unsw.edu.au>,
        Linus Torvalds <torvalds@transmeta.com>,
        Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Andrea Arcangeli <andrea@suse.de>
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On November 4, 2001 11:34 pm, Pavel Machek wrote:
> > Another potential microoptimisation would be to write out
> > clean blocks if that helps merging.  So if we see a write
> > for blocks 1,2,3,5,6,7 and block 4 is known to be in memory,
> > then write it out too.  I suspect this would be a win for
> > ATA but a loss for SCSI.  Not sure.
> 
> Please don't do this, it is bug.
> 
> If user did not ask writing somewhere, DO NOT WRITE THERE! If power
> fails in the middle of the sector... Or if that is flashcard....

or raid or nbd...

> Just don't do this.

--
Daniel
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