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Date:   Fri, 29 Jul 2022 16:23:20 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Ming Lei <ming.lei@redhat.com>
Cc:     Jens Axboe <axboe@kernel.dk>, linux-block@vger.kernel.org,
        ZiyangZhang <ZiyangZhang@linux.alibaba.com>,
        Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH V3 4/5] ublk_drv: add two parameter types
Message-ID: <20220729142320.GD32321@lst.de>
References: <20220729072954.1070514-1-ming.lei@redhat.com> <20220729072954.1070514-5-ming.lei@redhat.com>
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> Another change is that discard support becomes not enabled at default,
> and it needs userspace to send ublk_discard_param for enabling it.

FYI, independent of my deep diѕagreement with the model I agree
with that change.