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From: Christoph Lameter <clameter@sgi.com>
To: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Hugh Dickins <hugh@veritas.com>,
	linux-mm@kvack.org, akpm@osdl.org
Subject: Re: [RFC][PATCH 0/1] Node-based reclaim/migration
Date: Fri, 1 Dec 2006 11:56:46 -0800 (PST)	[thread overview]
Message-ID: <Pine.LNX.4.64.0612011156100.18846@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <6599ad830612011132i3e70ab38ye3bc8e48f879fea3@mail.gmail.com>

On Fri, 1 Dec 2006, Paul Menage wrote:

> 
> I was thinking of a new anon_vma, rather than a new vma - but I guess
> that even if we do race with someone who's faulting on the page and
> pulling it from the swap cache, they'll just set the page mapping to
> the same value as it is already, rather than setting it to a new
> value. So you're right, not a problem.

The page is locked during migration to prevent such occurrences.

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  reply	other threads:[~2006-12-01 19:56 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-11-29  3:06 menage
2006-11-29  3:06 ` [RFC][PATCH 1/1] Expose per-node reclaim and migration to userspace menage
2006-11-29  6:07   ` Nick Piggin
2006-11-29 21:57     ` Paul Menage
2006-11-30  4:13       ` Christoph Lameter
2006-11-30  4:18         ` Paul Menage
2006-11-30  7:38       ` Nick Piggin
2006-11-30  7:57         ` Paul Menage
2006-11-30  8:26           ` Nick Piggin
2006-11-30  8:39             ` Paul Menage
2006-11-30  8:55               ` Nick Piggin
2006-11-30  9:06                 ` Paul Menage
2006-11-30  9:21                   ` Nick Piggin
2006-11-30  9:45                     ` Paul Menage
2006-11-30 10:15                       ` Nick Piggin
2006-11-30 10:40                         ` Paul Menage
2006-11-30 11:04                           ` Nick Piggin
2006-11-30 11:23                             ` Paul Menage
2006-11-30 11:35                               ` Nick Piggin
2006-11-30  0:18   ` KAMEZAWA Hiroyuki
2006-11-30  0:25     ` Paul Menage
2006-11-30  0:38       ` KAMEZAWA Hiroyuki
2006-11-30  4:15       ` Christoph Lameter
2006-11-30  4:10   ` Christoph Lameter
2006-11-30  0:31 ` [RFC][PATCH 0/1] Node-based reclaim/migration KAMEZAWA Hiroyuki
2006-11-30  0:31   ` Paul Menage
2006-11-30  4:11     ` KAMEZAWA Hiroyuki
2006-11-30  4:17     ` Christoph Lameter
2006-11-30 10:45       ` Paul Menage
2006-11-30 11:12         ` KAMEZAWA Hiroyuki
2006-11-30 11:25           ` Paul Menage
2006-11-30 12:18             ` KAMEZAWA Hiroyuki
2006-11-30 18:28             ` Christoph Lameter
2006-11-30 18:35               ` Paul Menage
2006-11-30 18:39                 ` Christoph Lameter
2006-11-30 19:09                   ` Paul Menage
2006-11-30 19:42                     ` Christoph Lameter
2006-11-30 19:53                       ` Paul Menage
2006-11-30 20:00                         ` Christoph Lameter
2006-11-30 20:07                           ` Paul Menage
2006-11-30 20:15                             ` Christoph Lameter
2006-11-30 21:33                               ` Paul Menage
2006-11-30 23:41                                 ` Christoph Lameter
2006-11-30 23:48                                   ` Paul Menage
2006-12-01  2:23                                     ` Christoph Lameter
2006-12-01 19:32                                       ` Paul Menage
2006-12-01 19:56                                         ` Christoph Lameter [this message]
2006-12-01  2:44                                     ` KAMEZAWA Hiroyuki
2006-12-01  2:43                                       ` Christoph Lameter
2006-12-01  2:59                                         ` KAMEZAWA Hiroyuki
2006-12-01  2:44                                       ` Christoph Lameter
2006-12-01  3:10                                         ` KAMEZAWA Hiroyuki
2006-12-01  5:28                                           ` Christoph Lameter
2006-11-30  4:04 ` Christoph Lameter

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