From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gerd Hoffmann <kraxel@suse.de>
Subject: Re: building blktap as a module
Date: Mon, 16 Oct 2006 16:07:25 +0200
Message-ID: <4533921D.4000908@suse.de>
References: <C1594026.291A%Keir.Fraser@cl.cam.ac.uk>
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To: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
Cc: Andrew Warfield <Andrew.Warfield@xensource.com>, xen-devel@lists.xensource.com, Jan Beulich <jbeulich@novell.com>
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Keir Fraser wrote:
> 
> 
> On 16/10/06 12:45, "Gerd Hoffmann" <kraxel@suse.de> wrote:
> 
>> The linux kernel does call the drivers release() method when the last
>> reference is gone.  If you call close() with mappings still being
>> active, then ->release() is _not_ called when you close the file handle
>> but when the last mapping is unmapped.  Thus there is no point in trying
>> to handle active mappings there ;)
> 
> I.e., they'll have been unmapped already?

Yes.

> As you say, either way the zap is
> not needed...

Yep, I just wanted to fill in some more background info ...

cheers,

  Gerd

-- 
Gerd Hoffmann <kraxel@suse.de>
http://www.suse.de/~kraxel/julika-dora.jpeg