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Date:   Tue, 28 Jun 2022 06:49:39 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Bart Van Assche <bvanassche@acm.org>
Cc:     Jens Axboe <axboe@kernel.dk>, linux-block@vger.kernel.org,
        Christoph Hellwig <hch@lst.de>,
        Jaegeuk Kim <jaegeuk@kernel.org>,
        Keith Busch <kbusch@kernel.org>,
        Sagi Grimberg <sagi@grimberg.me>,
        Chaitanya Kulkarni <kch@nvidia.com>
Subject: Re: [PATCH v3 8/8] nvme: Enable pipelining of zoned writes
Message-ID: <20220628044939.GA22504@lst.de>
References: <20220627234335.1714393-1-bvanassche@acm.org> <20220627234335.1714393-9-bvanassche@acm.org>
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On Mon, Jun 27, 2022 at 04:43:35PM -0700, Bart Van Assche wrote:
> Enabling pipelining for zoned writes. Increase the number of retries
> for zoned writes to the maximum number of outstanding commands per hardware
> queue.

How is this supposed to work?  NVMe controllers are completely free
to reorder.  It also doesn't make sense as all zoned writes in Linux
either use zone append or block layer based zone locking.