linux-kernel - Re: remove support for the host aware zoned model

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Message-Id: <170304229020.683808.16849978519505449769.b4-ty@kernel.dk>
Date: Tue, 19 Dec 2023 20:18:10 -0700
From: Jens Axboe <axboe@...nel.dk>
To: Christoph Hellwig <hch@....de>
Cc: Paolo Bonzini <pbonzini@...hat.com>, 
 Stefan Hajnoczi <stefanha@...hat.com>, Damien Le Moal <dlemoal@...nel.org>, 
 "Martin K. Petersen" <martin.petersen@...cle.com>, dm-devel@...ts.linux.dev, 
 linux-kernel@...r.kernel.org, virtualization@...ts.linux.dev, 
 linux-nvme@...ts.infradead.org, linux-scsi@...r.kernel.org, 
 linux-btrfs@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: remove support for the host aware zoned model

On Sun, 17 Dec 2023 17:53:54 +0100, Christoph Hellwig wrote:
> hen zones were first added the SCSI and ATA specs, two different
> models were supported (in addition to the drive managed one that
> is invisible to the host):
> 
>  - host managed where non-conventional zones there is strict requirement
>    to write at the write pointer, or else an error is returned
>  - host aware where a write point is maintained if writes always happen
>    at it, otherwise it is left in an under-defined state and the
>    sequential write preferred zones behave like conventional zones
>    (probably very badly performing ones, though)
> 
> [...]

Applied, thanks!

[1/5] virtio_blk: cleanup zoned device probing
      commit: 77360cadaae562f437b3e98dc3af748d8d75bdc2
[2/5] virtio_blk: remove the broken zone revalidation support
      commit: a971ed8002110f211899279cd7295756d263b771
[3/5] block: remove support for the host aware zone model
      commit: 7437bb73f087e5f216f9c6603f5149d354e315af
[4/5] block: simplify disk_set_zoned
      commit: d73e93b4dfab10c80688b061c30048df05585c7e
[5/5] sd: only call disk_clear_zoned when needed
      commit: 5cc99b89785c55430a5674b32ad0d9e57a8ec251

Best regards,
-- 
Jens Axboe