linux-kernel - Re: [PATCH 00/23] per device dirty throttling -v8

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Message-ID: <46C4248C.1090408@aitel.hist.no>
Date:	Thu, 16 Aug 2007 12:18:52 +0200
From:	Helge Hafting <helge.hafting@...el.hist.no>
To:	Andi Kleen <andi@...stfloor.org>
CC:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, miklos@...redi.hu,
	akpm@...ux-foundation.org, neilb@...e.de, dgc@....com,
	tomoki.sekiyama.qu@...achi.com, nikita@...sterfs.com,
	trond.myklebust@....uio.no, yingchao.zhou@...il.com,
	richard@....demon.co.uk
Subject: Re: [PATCH 00/23] per device dirty throttling -v8

Andi Kleen wrote:
> I always thought the right solution would be to just sync atime only
> very very lazily. This means if a inode is only dirty because of an
> atime update put it on a "only write out when there is nothing to do
> or the memory is really needed" list.
>   
Seems like a good idea.  atimes will then be written only by
memory pressure - or umount.  The atimes could be wrong after
a crash, but loosing atimes only is not something
I'd worry about.

Helge Hafting
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