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BTRFS partition usage...

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From: David Miller <davem@...>
To: <chris.mason@...>
Cc: <linux-kernel@...>, <linux-fsdevel@...>, <btrfs-devel@...>
Subject: BTRFS partition usage...
Date: Tuesday, February 12, 2008 - 3:21 am

Filesystems like ext2 put their superblock 1 block into the partition
in order to avoid overwriting disk labels and other uglies.  UFS does
this too, as do several others.  One of the few exceptions I've been
able to find is XFS.

This is a real issue on sparc where the default sun disk labels
created use an initial partition where block zero aliases the disk
label.  It took me a few iterations before I figured out why every
btrfs make would zero out my disk label :-/

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Messages in current thread:
[ANNOUNCE] Btrfs v0.12 released, Chris Mason, (Wed Feb 6, 1:00 pm)
BTRFS only works with PAGE_SIZE &lt;= 4K, David Miller, (Tue Feb 12, 5:55 pm)
Re: BTRFS only works with PAGE_SIZE &lt;= 4K, Chris Mason, (Tue Feb 12, 6:03 pm)
CRC32C big endian bugs..., David Miller, (Tue Feb 12, 5:23 am)
BTRFS partition usage..., David Miller, (Tue Feb 12, 3:21 am)
Re: BTRFS partition usage..., David Miller, (Tue Feb 12, 4:11 am)
Re: BTRFS partition usage..., Chris Mason, (Tue Feb 12, 9:49 am)
Re: BTRFS partition usage..., David Miller, (Tue Feb 12, 4:50 pm)
Re: BTRFS partition usage..., Jan Engelhardt, (Tue Feb 12, 10:00 am)
Re: BTRFS partition usage..., David Miller, (Tue Feb 12, 7:28 pm)
Re: BTRFS partition usage..., Theodore Tso, (Tue Feb 12, 8:45 pm)
Re: BTRFS partition usage..., David Miller, (Tue Feb 12, 7:26 pm)
Re: BTRFS partition usage..., Bryan Henderson, (Tue Feb 12, 9:25 pm)
Re: BTRFS partition usage..., Jan Engelhardt, (Tue Feb 12, 7:39 pm)
Re: BTRFS partition usage..., David Miller, (Tue Feb 12, 9:08 pm)
Re: BTRFS partition usage..., Chris Mason, (Tue Feb 12, 10:08 am)
Re: BTRFS partition usage..., David Miller, (Tue Feb 12, 7:33 pm)
Re: BTRFS partition usage..., Jeff Garzik, (Tue Feb 12, 10:10 pm)
Re: BTRFS partition usage..., Szabolcs Szakacsits, (Wed Feb 13, 8:51 pm)
Re: BTRFS partition usage..., Jan Engelhardt, (Tue Feb 12, 10:21 am)
Re: BTRFS partition usage..., David Miller, (Tue Feb 12, 7:34 pm)
Re: BTRFS partition usage..., Chris Mason, (Tue Feb 12, 10:35 am)
Re: BTRFS partition usage..., David Miller, (Tue Feb 12, 7:35 pm)
Re: BTRFS partition usage..., Christoph Hellwig, (Wed Feb 13, 3:02 am)
Re: BTRFS partition usage..., Jan Engelhardt, (Tue Feb 12, 11:04 am)
Re: BTRFS partition usage..., David Miller, (Tue Feb 12, 7:38 pm)
Re: BTRFS partition usage..., Jan Engelhardt, (Tue Feb 12, 7:42 pm)
Re: BTRFS partition usage..., Rene Herman, (Tue Feb 12, 9:22 pm)
Re: BTRFS partition usage..., David Miller, (Tue Feb 12, 9:09 pm)
Re: BTRFS partition usage..., Chris Mason, (Tue Feb 12, 12:17 pm)
Re: [ANNOUNCE] Btrfs v0.12 released, David Miller, (Sun Feb 10, 9:12 pm)
Re: [ANNOUNCE] Btrfs v0.12 released, Chris Mason, (Mon Feb 11, 9:42 am)
Re: [ANNOUNCE] Btrfs v0.12 released, David Miller, (Tue Feb 12, 2:43 am)
Re: [ANNOUNCE] Btrfs v0.12 released, Chris Mason, (Tue Feb 12, 9:43 am)