From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH 05/45] FS-Cache: Release page->private after failed
 readahead [ver #41]
Date: Fri, 21 Nov 2008 00:12:37 -0800
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On Thu, 20 Nov 2008 14:42:05 +0000 David Howells <dhowells@redhat.com> wrote:

> +		if (TestSetPageLocked(page))

This got obsoleted by trylock_page().

I don't remember why, actually.