linux-ext4 - Re: [PATCH 1/6] blkid: fix ZFS device detection

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Message-ID: <20160306231025.GA30238@thunk.org>
Date:	Sun, 6 Mar 2016 18:10:25 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	Andreas Dilger <adilger@...ger.ca>
Cc:	linux-ext4@...r.kernel.org,
	Andreas Dilger <andreas.dilger@...el.com>
Subject: Re: [PATCH 1/6] blkid: fix ZFS device detection

On Sat, Mar 05, 2016 at 05:38:31PM -0700, Andreas Dilger wrote:
> From: Andreas Dilger <andreas.dilger@...el.com>
> 
> While the main blkid functionality is in util-linux, there is still
> use for blkid on non-Linux platforms.
> 
> Fix the ZFS device detection by looking at multiple uberblocks to
> see if any are present, rather than looking for the ZFS boot block
> which is not always present.
> 
> There are slots for up to 128 uberblocks, but the first 4 are not
> written to disk on a newly-formatted filesystem, so check several
> of them at different offsets within the uberblock array.
> 
> Signed-off-by: Andreas Dilger <andreas.dilger@...el.com>

Thanks, applied.

					- Ted
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