linux-kernel - Re: [PATCH 1/1] nvme-pci: add the DISABLE_WRITE

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Message-ID: <20210323123121.GA31105@lst.de>
Date:   Tue, 23 Mar 2021 13:31:21 +0100
From:   Christoph Hellwig <hch@....de>
To:     Javier González <javier.gonz@...sung.com>
Cc:     Christoph Hellwig <hch@....de>, Keith Busch <kbusch@...nel.org>,
        Dmitry Monakhov <dmtrmonakhov@...dex-team.ru>,
        linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org,
        Chaitanya.Kulkarni@....com
Subject: Re: [PATCH 1/1] nvme-pci: add the DISABLE_WRITE_ZEROES quirk for a
 Samsung PM1725a

On Tue, Mar 23, 2021 at 09:37:49AM +0100, Javier González wrote:
> Quick question. It seems like the current quirk simply disables
> write-zeroes. Would you be open for a quirk that aligns with MDTS for
> models that implemented it this way before TP4040?

Aligning to MDTS is our current behavior, although all kernels up to
5.11 had a bug in the calculation.