Message-ID: <492ED945.5010600@draigBrady.com>
Date: Thu, 27 Nov 2008 17:30:45 +0000
From: =?ISO-8859-1?Q?P=E1draig_Brady?= <P@draigBrady.com>
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To: Karel Zak <kzak@redhat.com>
CC: Matthew Garrett <mjg@redhat.com>, Randy Dunlap <randy.dunlap@oracle.com>,
       linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
       mingo@redhat.com, val.henson@gmail.com, matthew@wil.cx,
       util-linux-ng@vger.kernel.org
Subject: Re: [PATCH v2 2/2] relatime: Allow making relatime the default	behaviour
References: <20081126195457.GA3541@srcf.ucam.org> <20081126195824.GB3541@srcf.ucam.org> <492DD035.5020705@oracle.com> <20081127150126.GA20941@srcf.ucam.org> <20081127150341.GB20941@srcf.ucam.org> <20081127160353.GQ2961@nb.net.home>
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Karel Zak wrote:
> On Thu, Nov 27, 2008 at 03:03:41PM +0000, Matthew Garrett wrote:
>> Also add a MS_NORELATIME mount option
> [...]
>> +#define MS_NORELATIME	(1<<24)	/* Disable relatime even if the default */
> 
>  CC: util-linux-ng@vger.kernel.org

That's useful. Without this, to disable relatime you needed to:

echo 0 > /proc/sys/fs/default_relatime
mount -o remount,atime /mnt/point/

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