linux-kernel - Re: [PATCH] scsi: sd: Keep disk read-only when re-reading partition

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Message-ID: <01000161e70d459d-67080961-ba28-43ff-b519-2432ce5313f7-000000@email.amazonses.com>
Date:   Fri, 2 Mar 2018 14:11:02 +0000
From:   Jeremy Cline <jeremy@...ine.org>
To:     Johannes Thumshirn <jthumshirn@...e.de>
Cc:     "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scsi: sd: Keep disk read-only when re-reading partition

On 03/02/2018 07:00 AM, Johannes Thumshirn wrote:
> On Thu, Mar 01, 2018 at 02:08:10PM +0000, Jeremy Cline wrote:
>> If the read-only flag is true on a SCSI disk, re-reading the partition
>> table sets the flag back to false.
>>
>> To observe this bug, you can run:
>>
>> 1. blockdev --setro /dev/sda
>> 2. blockdev --rereadpt /dev/sda
>> 3. blockdev --getro /dev/sda
> 
> hi Jeremy,
> 
> Do you mind wiring up a testcase in blktest [1] for this? Given that
> you already have a rather trivial reproducer.
> 
> [1] https://github.com/osandov/

Hi Johannes,

Sure, I'll take care of it.

Regards,
Jeremy