From mboxrd@z Thu Jan  1 00:00:00 1970
Subject: Re: [RFC] PageReserved ?
References: <1118783741.4301.357.camel@dyn9047017072.beaverton.ibm.com>
From: Andi Kleen <ak@muc.de>
Date: Tue, 14 Jun 2005 23:47:19 +0200
In-Reply-To: <1118783741.4301.357.camel@dyn9047017072.beaverton.ibm.com> (Badari
 Pulavarty's message of "14 Jun 2005 14:15:42 -0700")
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To: Badari Pulavarty <pbadari@us.ibm.com>
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Badari Pulavarty <pbadari@us.ibm.com> writes:

> Hi,
>
> On Andrew's suggestion, I am looking at possibility of getting
> rid of PageReserved() usage. I see lots of drivers setting this
> flag. I am wondering what was the (intended) purpose of 
> PageReserved() ?

When the page is mapped into user space then the swapper won't 
try to swap it out when that bit is set.

-Andi
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