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Date:   Thu, 10 Mar 2022 22:07:30 -0800
From:   Christoph Hellwig <hch@infradead.org>
To:     Luis Chamberlain <mcgrof@kernel.org>
Cc:     Dave Chinner <david@fromorbit.com>,
        Javier =?iso-8859-1?Q?Gonz=E1lez?= <javier@javigon.com>,
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        Kanchan Joshi <joshi.k@samsung.com>,
        Nitesh Shetty <nj.shetty@samsung.com>,
        Jaegeuk Kim <jaegeuk@kernel.org>
Subject: Re: [LSF/MM/BPF BoF] BoF for Zoned Storage
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On Thu, Mar 10, 2022 at 04:49:06PM -0800, Luis Chamberlain wrote:
> Some filesystems who want to support zone storage natively have been
> extended to do things to help with these quirks. My concerns were the
> divergence on approaches to how filesystems use ZNS as well. Do you have
> any plans to consider such efforts for XFS or would you rather build on
> ZoneFS somehow?

XFS will always require a random writable area for metadata.  I have
an old early draft with a fully zone aware allocator essentially
replacing the realtime subvolume.  But it's been catching dust so far,
maybe I'll have a chance to resurrect it if I don't have too fight too
many stupid patchseries all at once.