From: Jamie Lokier <jamie@shareable.org>
To: Andrew Morton <akpm@digeo.com>
Cc: Andrea Arcangeli <andrea@suse.de>,
mbligh@aracnet.com, mingo@elte.hu, hugh@veritas.com,
dmccr@us.ibm.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: objrmap and vmtruncate
Date: Sun, 6 Apr 2003 13:37:53 +0100 [thread overview]
Message-ID: <20030406123753.GA23536@mail.jlokier.co.uk> (raw)
In-Reply-To: <20030405143138.27003289.akpm@digeo.com>
Andrew Morton wrote:
> And treating the nonlinear mappings as being mlocked is a great
> simplification - I'd be interested in Ingo's views on that.
More generally, how about automatically discarding VMAs and rmap
chains when pages become mlocked, and not creating those structures in
the first place when mapping with MAP_LOCKED?
The idea is that adjacent locked regions would be mergable into a
single VMA, looking a lot like the present non-linear mapping, and
with no need for rmap chains.
Because mlock is reversible, you'd need the capability to reconsitute
individual VMAs from ptes when unlocking a region.
-- Jamie
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next prev parent reply other threads:[~2003-04-06 12:37 UTC|newest]
Thread overview: 105+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-04 14:34 Hugh Dickins
2003-04-04 16:14 ` William Lee Irwin III
2003-04-04 16:29 ` Hugh Dickins
2003-04-04 18:54 ` Andrew Morton
2003-04-04 21:43 ` Hugh Dickins
2003-04-04 21:45 ` Andrea Arcangeli
2003-04-04 21:58 ` Benjamin LaHaise
2003-04-04 23:07 ` Andrew Morton
2003-04-05 0:03 ` Andrea Arcangeli
2003-04-05 0:31 ` Andrew Morton
2003-04-05 1:31 ` Andrea Arcangeli
2003-04-05 1:52 ` Benjamin LaHaise
2003-04-05 2:22 ` Andrea Arcangeli
2003-04-05 10:01 ` Jamie Lokier
2003-04-05 10:11 ` William Lee Irwin III
2003-04-05 2:06 ` Andrew Morton
2003-04-05 2:24 ` Andrea Arcangeli
2003-04-05 2:13 ` Martin J. Bligh
2003-04-05 2:44 ` Andrea Arcangeli
2003-04-05 3:24 ` Andrew Morton
2003-04-05 12:06 ` Andrew Morton
2003-04-05 15:11 ` Martin J. Bligh
[not found] ` <20030405161758.1ee19bfa.akpm@digeo.com>
2003-04-06 0:17 ` Andrew Morton
2003-04-06 7:07 ` William Lee Irwin III
2003-04-05 16:30 ` Andrea Arcangeli
2003-04-05 19:01 ` Andrea Arcangeli
2003-04-05 20:14 ` Andrew Morton
2003-04-05 21:24 ` Andrew Morton
2003-04-05 22:06 ` Andrea Arcangeli
2003-04-05 22:31 ` Andrew Morton
2003-04-05 23:10 ` Andrea Arcangeli
2003-04-06 1:58 ` Andrew Morton
2003-04-06 14:47 ` Andrea Arcangeli
2003-04-06 21:35 ` William Lee Irwin III
2003-04-06 7:38 ` William Lee Irwin III
2003-04-06 14:51 ` Andrea Arcangeli
2003-04-06 12:37 ` Jamie Lokier [this message]
2003-04-06 13:12 ` William Lee Irwin III
2003-04-22 11:00 ` Ingo Molnar
2003-04-22 11:54 ` William Lee Irwin III
2003-04-22 14:31 ` Ingo Molnar
2003-04-22 14:56 ` William Lee Irwin III
2003-04-22 15:26 ` Ingo Molnar
2003-04-22 16:20 ` William Lee Irwin III
2003-04-22 16:57 ` Andrea Arcangeli
2003-04-22 17:21 ` William Lee Irwin III
2003-04-22 18:08 ` Andrea Arcangeli
2003-04-22 17:34 ` Ingo Molnar
2003-04-22 18:04 ` Benjamin LaHaise
2003-04-22 16:58 ` Martin J. Bligh
2003-04-22 12:37 ` Andrea Arcangeli
2003-04-22 13:20 ` William Lee Irwin III
2003-04-22 14:38 ` Martin J. Bligh
2003-04-22 15:10 ` William Lee Irwin III
2003-04-22 15:53 ` Martin J. Bligh
2003-04-22 14:52 ` Andrea Arcangeli
2003-04-22 14:29 ` Martin J. Bligh
2003-04-22 15:07 ` Ingo Molnar
2003-04-22 15:42 ` William Lee Irwin III
2003-04-22 15:55 ` Ingo Molnar
2003-04-22 16:58 ` William Lee Irwin III
2003-04-22 17:07 ` Ingo Molnar
2003-04-22 15:16 ` Andrea Arcangeli
2003-04-22 15:49 ` Ingo Molnar
2003-04-22 16:16 ` Martin J. Bligh
2003-04-22 17:24 ` Ingo Molnar
2003-04-22 17:45 ` John Bradford
2003-04-22 14:32 ` Martin J. Bligh
2003-04-22 15:09 ` Ingo Molnar
2003-04-05 21:34 ` Rik van Riel
2003-04-06 9:29 ` Benjamin LaHaise
2003-04-05 23:25 ` William Lee Irwin III
2003-04-05 23:57 ` Andrew Morton
2003-04-06 0:14 ` Andrea Arcangeli
2003-04-06 1:39 ` Andrew Morton
2003-04-06 2:13 ` William Lee Irwin III
2003-04-06 9:26 ` Benjamin LaHaise
2003-04-06 9:41 ` William Lee Irwin III
2003-04-06 9:54 ` William Lee Irwin III
2003-04-06 2:23 ` Martin J. Bligh
2003-04-06 3:55 ` Andrew Morton
2003-04-06 3:08 ` Martin J. Bligh
2003-04-06 7:42 ` William Lee Irwin III
2003-04-06 14:49 ` Alan Cox
2003-04-06 16:13 ` Martin J. Bligh
2003-04-06 21:34 ` subobj-rmap Martin J. Bligh
2003-04-06 21:42 ` subobj-rmap Rik van Riel
2003-04-06 21:55 ` subobj-rmap Jamie Lokier
2003-04-06 22:39 ` subobj-rmap William Lee Irwin III
2003-04-06 22:03 ` subobj-rmap Martin J. Bligh
2003-04-06 22:06 ` subobj-rmap Martin J. Bligh
2003-04-06 22:15 ` subobj-rmap Andrea Arcangeli
2003-04-06 22:25 ` subobj-rmap Martin J. Bligh
2003-04-07 21:25 ` subobj-rmap Andrea Arcangeli
2003-04-06 23:06 ` subobj-rmap Jamie Lokier
2003-04-06 23:26 ` subobj-rmap Martin J. Bligh
2003-04-05 3:45 ` objrmap and vmtruncate Martin J. Bligh
2003-04-05 3:59 ` Rik van Riel
2003-04-05 4:10 ` William Lee Irwin III
2003-04-05 4:49 ` Martin J. Bligh
2003-04-05 13:31 ` Rik van Riel
2003-04-05 4:52 ` Martin J. Bligh
2003-04-05 3:22 ` Andrew Morton
2003-04-05 3:35 ` Martin J. Bligh
2003-04-05 3:53 ` Rik van Riel
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