From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Wed, 14 Feb 2007 18:30:06 -0800 (PST)
From: Christoph Lameter <clameter@sgi.com>
Subject: Re: [PATCH 2/7] Add PageMlocked() page state bit and lru infrastructure
In-Reply-To: <20070215020916.GS10108@waste.org>
Message-ID: <Pine.LNX.4.64.0702141829410.5747@schroedinger.engr.sgi.com>
References: <20070215012449.5343.22942.sendpatchset@schroedinger.engr.sgi.com>
 <20070215012459.5343.72021.sendpatchset@schroedinger.engr.sgi.com>
 <20070215020916.GS10108@waste.org>
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To: Matt Mackall <mpm@selenic.com>
Cc: akpm@osdl.org, Christoph Hellwig <hch@infradead.org>, Arjan van de Ven <arjan@infradead.org>, Nigel Cunningham <nigel@nigel.suspend2.net>, "Martin J. Bligh" <mbligh@mbligh.org>, Peter Zijlstra <a.p.zijlstra@chello.nl>, Nick Piggin <nickpiggin@yahoo.com.au>, linux-mm@kvack.org, Rik van Riel <riel@redhat.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
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On Wed, 14 Feb 2007, Matt Mackall wrote:

> I think we should be much more precise in documenting the semantics of
> these bits. This particular comment is imprecise enough to be
> incorrect. This bit being set indicates that we saw that it was
> mlocked at some point in the past, not any guarantee that it's mlocked
> now. And the same for the converse.

See further down in the patch. The semantics are described when the 
PageMlockedXXX ops are defined.

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