From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jes Sorensen <jes@wildopensource.com>
Date: Tue, 22 Feb 2005 21:38:42 +0000
Subject: Re: [patch -mm series] ia64 specific /dev/mem handlers
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To: Dave Hansen <haveblue@us.ibm.com>
Cc: Andrew Morton <akpm@osdl.org>, Matthew Wilcox <matthew@wil.cx>, linux-ia64@vger.kernel.org, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>

>>>>> "Dave" = Dave Hansen <haveblue@us.ibm.com> writes:

Dave> I was talking with Nigel Cunningham about doing something a
Dave> little different from the classic page flag bits when the number
Dave> of users is restricted and performance isn't ultra-critical.
Dave> Would something like this work for you, instead of using a real
Dave> page->flags bit for PG_cached?

Just took a quick look at this and it looks a bit heavy for our
use. We are only looking at a small number of pages. However I could
imagine future cases where performance may be more critical.

Cheers,
Jes