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From: Christoph Rohland <cr@sap.com>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: shm swapping in 2.4 again
In-Reply-To: <Pine.LNX.4.21.0011161929080.13085-100000@duckman.distro.conectiva>
Organisation: SAP LinuxLab
Date: 17 Nov 2000 09:08:02 +0100
In-Reply-To: Rik van Riel's message of "Thu, 16 Nov 2000 19:30:46 -0200 (BRDT)"
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Hi Rik,

On Thu, 16 Nov 2000, Rik van Riel wrote:
> On 16 Nov 2000, Christoph Rohland wrote:
>> Also we have to make sure to derefence the swap entry if the
>> last reference is in the shm segmant table .
> 
> Why is this?

Because you never get a page fault on the shm segmants. So you never
will exchange a swap entry with a real page in these segments
automatically.

Actually I think the best approach would be to replace the entry on
the first swapin. 

Greetings
		Christoph

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