linux-kernel - Re: [PATCH v2] libnvdimm: Notify disk drivers to revalidate region read-only

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Date:   Wed, 10 Mar 2021 07:54:25 +0100
From:   Christoph Hellwig <hch@....de>
To:     Dan Williams <dan.j.williams@...el.com>
Cc:     linux-nvdimm@...ts.01.org, Christoph Hellwig <hch@....de>,
        Ming Lei <ming.lei@...hat.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Hannes Reinecke <hare@...e.de>, Jens Axboe <axboe@...nel.dk>,
        kernel test robot <lkp@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org
Subject: Re: [PATCH v2] libnvdimm: Notify disk drivers to revalidate region
 read-only

Looks good to me:

Reviewed-by: Christoph Hellwig <hch@....de>

Question on the pre-existing code: given that nvdimm_check_and_set_ro is
the only caller of set_disk_ro for nvdimm devices, we'll also get
the message when initially setting up any read-only disk.  Is that
intentional?