From: William Lee Irwin III <wli@holomorphy.com>
To: Daniel Phillips <phillips@bonn-fries.net>
Cc: Rik van Riel <riel@conectiva.com.br>,
Christian Smith <csmith@micromuse.com>,
Joseph A Knapka <jknapka@earthlink.net>,
"Martin J. Bligh" <Martin.Bligh@us.ibm.com>,
linux-mm@kvack.org
Subject: Re: Why *not* rmap, anyway?
Date: Tue, 7 May 2002 12:50:07 -0700 [thread overview]
Message-ID: <20020507195007.GW15756@holomorphy.com> (raw)
In-Reply-To: <E175Avp-0000Tm-00@starship>
On Tuesday 07 May 2002 21:25, William Lee Irwin III wrote:
>> Procedural interfaces to pagetable manipulations are largely what
>> the BSD pmap and SVR4 HAT layers consisted of, no?
On Tue, May 07, 2002 at 09:47:28PM +0200, Daniel Phillips wrote:
> They factor the interface the wrong way for Linux. You don't want
> to have to search for each (pte *) starting from the top of the
> structure. We need to be able to do bulk processing. The BSD
> interface just doesn't accomodate this.
Generally the way to achieve this is by anticipating those bulk
operations and providing standardized methods for them. copy_page_range()
and zap_page_range() are already examples of this. For other cases,
it's perhaps a useful layer inversion.
Cheers,
Bill
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next prev parent reply other threads:[~2002-05-07 19:50 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-21 22:27 Why *not* rmap, anyway? Joseph A Knapka
2002-04-22 0:23 ` Martin J. Bligh
2002-04-22 2:13 ` Joseph A Knapka
2002-04-22 5:46 ` Martin J. Bligh
2002-04-23 22:40 ` Christian Smith
2002-04-24 0:46 ` Rik van Riel
2002-04-24 10:50 ` Christian Smith
2002-04-24 14:20 ` Rik van Riel
2002-04-24 14:37 ` Momchil Velikov
2002-04-24 14:52 ` Rik van Riel
2002-04-24 15:16 ` Momchil Velikov
2002-04-24 18:31 ` William Lee Irwin III
2002-04-25 15:19 ` Christian Smith
2002-05-05 19:04 ` Daniel Phillips
2002-05-07 18:37 ` Christian Smith
2002-05-07 19:23 ` Rik van Riel
2002-05-07 19:25 ` William Lee Irwin III
2002-05-07 19:47 ` Daniel Phillips
2002-05-07 19:50 ` William Lee Irwin III [this message]
2002-05-07 23:02 ` Daniel Phillips
2002-05-08 0:08 ` William Lee Irwin III
2002-05-08 5:08 ` Andrew Morton
2002-05-08 7:59 ` Momchil Velikov
2002-05-08 14:33 ` Daniel Phillips
2002-05-08 14:43 ` Rik van Riel
2002-05-08 16:06 ` Daniel Phillips
2002-05-08 16:10 ` Rik van Riel
2002-05-07 19:49 ` Rik van Riel
2002-05-07 19:53 ` William Lee Irwin III
2002-05-07 19:43 ` Daniel Phillips
2002-05-07 19:51 ` Rik van Riel
2002-05-07 23:11 ` Daniel Phillips
2002-05-07 21:21 ` William Lee Irwin III
2002-05-07 23:15 ` Daniel Phillips
2002-05-07 19:37 ` Daniel Phillips
2002-05-07 19:47 ` William Lee Irwin III
2002-05-05 18:38 ` Daniel Phillips
2002-05-05 22:23 ` Rik van Riel
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