From: Ted Ts'o <tytso@mit.edu>
Subject: Re: ceph and ext4
Date: Tue, 15 Nov 2011 09:22:46 -0500
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Cc: Martin Mailand <martin@tuxadero.com>, ceph-devel@vger.kernel.org,
	linux-ext4@vger.kernel.org
To: Christian Brunner <chb@muc.de>
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On Tue, Nov 15, 2011 at 09:29:28AM +0100, Christian Brunner wrote:
> 
> I'd love to have a working filesystem for ceph, but the xattr issue
> with ext4 really scares me. That's why I'm still wrestling with btrfs.

FYI, there are patches to extend ext4 to store xattr's in a separate
inode.  They were submitted by the Whamcloud (formerly Oracle, Sun,
Clustrefs -- the Lustre folks).

Unfortunately I haven't had the personal time and review bandwidth to
go over the patches, and they haven't been rebased in a while.  I'm
not opposed to them; they just need some time and loving attention
from folks with ext4 expertise to accelerate the process of getting
the patches reviewed, and in mainline.

					- Ted