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Re: shrink_mmap ()?

To: Chirayu Patel <chirayu@wipro.tcpn.com>
Subject: Re: shrink_mmap ()?
From: Rik van Riel <H.H.vanRiel@fys.ruu.nl>
Date: Thu, 26 Mar 1998 14:09:47 +0100 (MET)
cc: linux-mm@kvack.org, linux-kernel@vger.rutgers.edu
In-Reply-To: <Pine.SUN.3.95.980326175034.17975N-100000@Kabini>
Reply-To: H.H.vanRiel@fys.ruu.nl
Sender: owner-linux-mm@kvack.org

On Thu, 26 Mar 1998, Chirayu Patel wrote:

> I was going through the source for shrink_mmap.......
> 
> We are freeing a page with count = 1 (referenced by one process only) but
> we are not manipulating any page table entries. Why? Shouldnt we be
> manipulating the page table entries or where are the page table entries
> getting manipulated?
> 
> I know I have missed something terribly obvious over here. Can someone
> please help me out. 

When the count is 1, the page cache _is_ the only reference to
the page.

Rik.
+-------------------------------------------+--------------------------+
| Linux: - LinuxHQ MM-patches page          | Scouting       webmaster |
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|     http://www.fys.ruu.nl/~riel/          | <H.H.vanRiel@fys.ruu.nl> |
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References:
- shrink_mmap ()?
  - From: Chirayu Patel <chirayu@wipro.tcpn.com>

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