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Date: Mon, 14 May 2012 08:47:45 -0500 (CDT)
From: Christoph Lameter <cl@linux.com>
Subject: Re: Allow migration of mlocked page?
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To: Minchan Kim <minchan@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>, Johannes Weiner <hannes@cmpxchg.org>, Mel Gorman <mgorman@suse.de>, Rik van Riel <riel@redhat.com>, Andrew Morton <akpm@linux-foundation.org>, Andrea Arcangeli <aarcange@redhat.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, "linux-mm@kvack.org" <linux-mm@kvack.org>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Theodore Ts'o <tytso@mit.edu>, "hugh.dickins@tiscali.co.uk" <hugh.dickins@tiscali.co.uk>

On Mon, 14 May 2012, Minchan Kim wrote:

> What's the meaning of "locked"? Isn't it pinning?

No. We agreed to that a long time ago when the page migration logic was
first merged. Mlock only means memory resident.

Hugh pushed for it initially.

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