linux-kernel - Re: [PATCH 2/5] Add aix lvm partitions support files

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Message-ID: <20130812122150.GA28184@agk-dp.fab.redhat.com>
Date:	Mon, 12 Aug 2013 13:21:50 +0100
From:	Alasdair G Kergon <agk@...hat.com>
To:	Philippe De Muyter <phdm@...qel.be>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Karel Zak <kzak@...hat.com>,
	Jens Axboe <axboe@...nel.dk>
Subject: Re: [PATCH 2/5] Add aix lvm partitions support files

On Mon, Aug 12, 2013 at 04:52:34AM -0700, Christoph Hellwig wrote:
> lvm is mostly about the Linux specific formats.  If you want to create
> a separate userspace consumer for device mapper that's probably also
> fine, but if you need support for complex layours device mapper is the
> way to go, and the partitioning layer isn't getting you anywhere.
 
If you can map the AIX volume manager objects onto the linux ones, you
can write a 'format' module for lvm2 to handle them.

Alasdair

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