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

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Message-ID: <20210323124322.qchyk7boyzklwv3v@mpHalley.local>
Date:   Tue, 23 Mar 2021 13:43:22 +0100
From:   Javier González <javier.gonz@...sung.com>
To:     Christoph Hellwig <hch@....de>
CC:     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 23.03.2021 13:31, Christoph Hellwig wrote:
>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.

I see. Let me check internally and see what's going on with
write-zeroes on this model.