linux-kernel - Re: relatime: update once per day patches (was: ext3 IO latency measurements)

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Message-Id: <200903261814.07375.elendil@planet.nl>
Date:	Thu, 26 Mar 2009 18:14:02 +0100
From:	Frans Pop <elendil@...net.nl>
To:	Jose Celestino <japc@...sapo.pt>
Cc:	Theodore Tso <tytso@....edu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>, mingo@...e.hu,
	jack@...e.cz, alan@...rguk.ukuu.org.uk, arjan@...radead.org,
	a.p.zijlstra@...llo.nl, npiggin@...e.de, jens.axboe@...cle.com,
	drees76@...il.com, jesper@...gh.cc, linux-kernel@...r.kernel.org,
	oleg@...hat.com, roland@...hat.com
Subject: Re: relatime: update once per day patches (was: ext3 IO latency measurements)

On Thursday 26 March 2009, Jose Celestino wrote:
> Words by Theodore Tso [Thu, Mar 26, 2009 at 12:30:26PM -0400]:
> > On Thu, Mar 26, 2009 at 09:14:28AM -0700, Linus Torvalds wrote:
> > > I generally agree witht he "leave policy to user space" people, but
> > > this is an area where (a) user space has shown itself to not get it
> > > right (ie people don't do even the existing relatime because
> > > distros don't) and (b) what's the alternative?
> >
> > I thought at least some distro's were adding relatime by default; I
> > could be wrong, but I thought Ubuntu was doing this.
>
> Yes.

No, not the "pure" relatime that's in the upstream kernel. And that's the 
whole point here. See my direct reply to Ted.

Cheers,
FJP
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