From: Neil Brown <neilb@suse.de>
To: Andrew Morton <akpm@osdl.org>
Date: Tue, 16 May 2006 09:03:24 +1000
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Cc: linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org,
       paul.clements@steeleye.com
Subject: Re: [PATCH 008 of 8] md/bitmap: Change md/bitmap file handling to
 use bmap to file blocks.
In-Reply-To: message from Andrew Morton on Monday May 15
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On Monday May 15, akpm@osdl.org wrote:
> 
> Ho hum, I give up.

Thankyou :-)  I found our debate very valuable - it helped me clarify
my understanding of some areas of linux filesystem semantics (and as I
am trying to write a filesystem in my 'spare time', that will turn out
to be very useful).  It also revealed some problems in the code!

>                     I don't think, in practice, this code fixes any
> demonstrable bug though.

I thought it was our job to kill the bugs *before* they were
demonstrated :-)

I'm still convinced that the previous code could lead to deadlocks or
worse under sufficiently sustained high memory pressure and fs
activity.

I'll send a patch shortly that fixes the known problems and
awkwardnesses in the new code.

Thanks again,
NeilBrown
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