linux-kernel - Re: [PATCH, resend] relatime: Let relatime update atime at least once per day

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Message-ID: <20090108133220.GA11254@srcf.ucam.org>
Date:	Thu, 8 Jan 2009 13:32:20 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Peter Moulder <pjrm@...l.internode.on.net>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Éric Piel <E.A.B.Piel@...elft.nl>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH, resend] relatime: Let relatime update atime at least once per day

On Thu, Jan 08, 2009 at 11:29:53PM +1100, Peter Moulder wrote:
> What was the fate of Ingo's previous patch[*1] to implement this (which,
> incidentally, also included updates to documentation and made the interval
> configurable as Éric Piel suggests) ?

Nobody merged it and Ingo got bored of pushing it. I sent it earlier, 
but nobody came up with an especially good argument for the 
configurability and everyone seemed to want to paint the patch pink with 
yellow polka dots, so I gave up and just sent a minimal one in the hope 
that nobody could find anything to complain about.

> Just a minor nit, but the patch description (not included in the patch itself)
> "at least once a day" isn't particularly accurate given that the patch enforces
> at least a day [minus a second or so] has elapsed since the last update.  The
> description in the above-referenced patch "only once a day" better captures the
> situation, I think.

If mtime is changed then atime will be updated on the next access, so 
you can easily have more than one atime update a day.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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