linux-ext4 - Re: [RFC] ext4-locality-groups patch

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Date:	Wed, 13 Dec 2006 14:32:42 -0700
From:	Andreas Dilger <adilger@...sterfs.com>
To:	Valerie Clement <valerie.clement@...l.net>
Cc:	Alex Tomas <alex@...sterfs.com>, linux-ext4@...r.kernel.org
Subject: Re: [RFC] ext4-locality-groups patch

On Dec 13, 2006  16:02 +0100, Valerie Clement wrote:
> Alex Tomas wrote:
> >ah, it's simple. you're looking at superblock counters.
> >we don't update them every time. this was changed years
> >ago. try the same with regular ext3
>
> Yes, sorry, I didn't know that and I didn't notice that before.
> And the per-group counters are right.

It would be good, IMHO, to update the superblock counters periodically
anyways (e.g. statfs already has done the calculation).  Otherwise,
e2fsck on a mounted-but-idle system always complains about them being
incorrect.

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.

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