From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: kosaki.motohiro@jp.fujitsu.com,
Minchan Kim <minchan.kim@gmail.com>,
Ben Gamari <bgamari.foss@gmail.com>,
linux-kernel@vger.kernel.org, rsync@lists.samba.org,
linux-mm@kvack.org, Wu Fengguang <fengguang.wu@intel.com>
Subject: Re: fadvise DONTNEED implementation (or lack thereof)
Date: Mon, 15 Nov 2010 18:10:49 +0900 (JST) [thread overview]
Message-ID: <20101115180153.BF18.A69D9226@jp.fujitsu.com> (raw)
In-Reply-To: <1289810825.2109.469.camel@laptop>
> > I wonder what's the problem in Peter's patch 'drop behind'.
> > http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg179576.html
> >
> > Could anyone tell me why it can't accept upstream?
>
> Read the thread, its quite clear nobody got convinced it was a good idea
> and wanted to fix the use-once policy, then Rik rewrote all of
> page-reclaim.
If my understand is correct, rsync touch data twice (for a hash calculation
and for a copy). then, currect used-once-heuristics seems still doesn't work.
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prev parent reply other threads:[~2010-11-15 9:10 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-04 5:58 Ben Gamari
2010-11-06 16:23 ` Wayne Davison
2010-11-09 7:28 ` KOSAKI Motohiro
2010-11-09 8:03 ` KOSAKI Motohiro
2010-11-09 12:54 ` Ben Gamari
2010-11-14 5:09 ` KOSAKI Motohiro
2010-11-14 5:20 ` Ben Gamari
2010-11-14 21:33 ` Brian K. White
2010-11-15 6:07 ` Minchan Kim
2010-11-15 7:09 ` KOSAKI Motohiro
2010-11-15 7:19 ` Minchan Kim
2010-11-15 7:28 ` KOSAKI Motohiro
2010-11-15 7:46 ` Minchan Kim
2010-11-15 12:46 ` Ben Gamari
2010-11-15 8:47 ` Peter Zijlstra
2010-11-15 9:05 ` Minchan Kim
2010-11-15 14:48 ` Rik van Riel
2010-11-17 10:16 ` Minchan Kim
2010-11-17 11:15 ` Minchan Kim
2010-11-17 16:22 ` Rik van Riel
2010-11-18 2:47 ` Minchan Kim
2010-11-18 3:24 ` Rik van Riel
2010-11-18 3:46 ` Minchan Kim
2010-11-15 9:10 ` KOSAKI Motohiro [this message]
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