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Subject: Re: 2.4.18 no timestamp update on modified mmapped files
To: hugh@veritas.com (Hugh Dickins)
Date: Wed, 12 Jun 2002 08:40:54 +0100 (BST)
Cc: akpm@zip.com.au (Andrew Morton), kaos@ocs.com.au (Keith Owens),
        linux-kernel@vger.kernel.org
In-Reply-To: <Pine.LNX.4.21.0206111006300.1028-100000@localhost.localdomain> from "Hugh Dickins" at Jun 11, 2002 10:10:28 AM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> On Tue, 11 Jun 2002, Andrew Morton wrote:
> > 
> > I think it's too late to fix this in 2.4.  If we did, a person
> > could develop and test an application on 2.4.21, ship it, then
> > find that it fails on millions of 2.4.17 machines.
> 
> Oh, please reconsider that!  Doesn't loss of modification time
> approach data loss?  Surely we'll continue to fix any data loss
> issues in 2.4, and be grateful if you fixed this mmap modtime loss.

It doesnt approach data loss, when doing incremental backups it
*is* data loss. Ditto with rsync --newer
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