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Message-ID: <20061117141230.70698.qmail@web23105.mail.ird.yahoo.com>
Date: Fri, 17 Nov 2006 14:12:30 +0000 (GMT)
From: moreau francis <francis_moreau2000@yahoo.fr>
Subject: Re : vm: weird behaviour when munmapping
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
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Peter Zijlstra wrote:
> No indeed. You seem confused with remaining and new. 
> 
> It has one VMA (A) it needs to split that into two pieces, it happens to
> do it like (B,A') where A' is the old VMA object with new a start
> address, and B is a new VMA object.

Is there any rules to decide which VMA is the new one ? 

>From what you wrote it seems that we call B the new object because
it has a new end address...

>From my point of view, I called B the old VMA simply because it's
going to be destroyed...

Francis


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