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Date:	Sat, 2 Jun 2012 09:17:30 +0200
From:	Markus Trippelsdorf <>
To:	Hugh Dickins <>
Cc:	Linus Torvalds <>,
	Bartlomiej Zolnierkiewicz <>,
	Kyungmin Park <>,
	Marek Szyprowski <>,
	Mel Gorman <>, Minchan Kim <>,
	Rik van Riel <>,
	Dave Jones <>,
	Andrew Morton <>,
	Cong Wang <>,,
Subject: Re: WARNING: at mm/page-writeback.c:1990

On 2012.06.01 at 21:40 -0700, Hugh Dickins wrote:
> I'm guessing that the few people who see the warning are those running
> new systemd distros, and that systemd is indeed now making use of the
> fallocate support we added into tmpfs for it.)

At least in my case it's nothing that horrible. I'm just setting
browser.cache.disk.parent_directory to /dev/shm in Firefox. And Firefox
does indeed use fallocate on its "disk cache" items.

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