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Groups > linux.kernel > #1686607
| From | Martin Wilck <mwilck@suse.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] nvmet: preserve controller serial number between reboots |
| Date | 2017-07-13 17:10 +0200 |
| Message-ID | <u2NUC-7ez-17@gated-at.bofh.it> (permalink) |
| References | <u2Kan-4RD-37@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, 2017-07-13 at 12:48 +0200, Johannes Thumshirn wrote:
> The NVMe target has no way to preserve controller serial
> IDs across reboots which breaks udev scripts doing
> SYMLINK+="dev/disk/by-id/nvme-$env{ID_SERIAL}-part%n.
>
> Export the randomly generated serial number via configfs and allow
> setting of a serial via configfs to mitigate this breakage.
I'm wondering if this should be a write-once attribute. Also,
Once the serial number has been passed on to some host (or maybe only:
while the device is in use by some host), the attribute should probably
be read-only.
Martin
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[PATCH] nvmet: preserve controller serial number between reboots Johannes Thumshirn <jthumshirn@suse.de> - 2017-07-13 13:10 +0200
Re: [PATCH] nvmet: preserve controller serial number between reboots Sagi Grimberg <sagi@grimberg.me> - 2017-07-13 14:40 +0200
Re: [PATCH] nvmet: preserve controller serial number between reboots Johannes Thumshirn <jthumshirn@suse.de> - 2017-07-13 15:00 +0200
Re: [PATCH] nvmet: preserve controller serial number between reboots Christoph Hellwig <hch@lst.de> - 2017-07-13 15:10 +0200
Re: [PATCH] nvmet: preserve controller serial number between reboots Johannes Thumshirn <jthumshirn@suse.de> - 2017-07-13 15:20 +0200
Re: [PATCH] nvmet: preserve controller serial number between reboots Sagi Grimberg <sagi@grimberg.me> - 2017-07-13 18:40 +0200
Re: [PATCH] nvmet: preserve controller serial number between reboots Christoph Hellwig <hch@lst.de> - 2017-07-13 19:20 +0200
Re: [PATCH] nvmet: preserve controller serial number between reboots Martin Wilck <mwilck@suse.de> - 2017-07-13 17:10 +0200
Re: [PATCH] nvmet: preserve controller serial number between reboots Christoph Hellwig <hch@lst.de> - 2017-07-13 17:20 +0200
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