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

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Message-ID: <45807E15.3080200@redhat.com>
Date:	Wed, 13 Dec 2006 16:26:29 -0600
From:	Eric Sandeen <sandeen@...hat.com>
To:	Andreas Dilger <adilger@...sterfs.com>
CC:	Alex Tomas <alex@...sterfs.com>,
	Valerie Clement <valerie.clement@...l.net>,
	linux-ext4@...r.kernel.org
Subject: Re: [RFC] ext4-locality-groups patch

Andreas Dilger wrote:
> On Dec 13, 2006  08:40 -0600, Eric Sandeen wrote:
>> This is probably a discrepancy that comes from reading the block device 
>> directly, right?  Which is not necessarily in sync with the address 
>> space for the filesystem.
> 
> In fact, the block device IS in sync with the filesystem address space,
> but only for metadata.  The file data each has its own address space and
> is not coherent.

Ah, thanks for the clarification.

-Eric
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