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

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Message-ID: <20130812115234.GA7709@infradead.org>
Date:	Mon, 12 Aug 2013 04:52:34 -0700
From:	Christoph Hellwig <hch@...radead.org>
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 Fri, May 24, 2013 at 12:58:52PM +0200, Philippe De Muyter wrote:
> > This very much screams like it should be implemented in the lvm2
> > userspace package using the dm kernel driver.
> 
> Is lvm2 a generic tool for discovering foreign partition layouts, or it is
> about one linux-specific lvm implementation ?

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.

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