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Date: Fri, 22 Mar 2002 15:13:20 -0500 (EST)
From: Alexander Viro <viro@math.psu.edu>
To: Rakesh Tiwari <rakeshtiwari@attbi.com>
cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: 2.2.19(xx) file unmapping on abort
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On Fri, 22 Mar 2002, Rakesh Tiwari wrote:

> 
> I call msync() at various points in the program where data in the pages
> is known to be in good condition. At the abnormal program termination, I
> am not really sure if data in pages is valid or not.....

If you have a shared mapping it can be written to disk at any moment, so
you can't rely on that happening only at the moment of msync().

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