linux-kernel - Re: [RFC] some page can't be migrated

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Message-ID: <Pine.LNX.4.64.0801241911470.31975@schroedinger.engr.sgi.com>
Date:	Thu, 24 Jan 2008 19:12:43 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Shaohua Li <shaohua.li@...el.com>
cc:	Nick Piggin <nickpiggin@...oo.com.au>,
	lkml <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [RFC] some page can't be migrated

On Fri, 25 Jan 2008, Shaohua Li wrote:

> the page is still in lru list. Memory hot remove will try to migrate the
> page.

So this is an abandoned page with a refcount that only exists because of 
fs private data? Truncate race?

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