linux-kernel - Re: [PATCH 1/3] nvme: introduce bit 5 of smart critical warning

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Message-ID: <20220510054904.GA10460@lst.de>
Date:   Tue, 10 May 2022 07:49:04 +0200
From:   Christoph Hellwig <hch@....de>
To:     zhenwei pi <pizhenwei@...edance.com>
Cc:     kbusch@...nel.org, hch@....de, sagi@...mberg.me, axboe@...com,
        linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] nvme: introduce bit 5 of smart critical warning

On Sat, May 07, 2022 at 02:50:24PM +0800, zhenwei pi wrote:
> According to NVM Express v1.4, Section 5.14.1.2 ("SMART / Health
> Information"), introduce bit 5 for "Persistent Memory Region has become
> read-only or unreliable".

Given that Linux does not support the PMR, do we really need this?