Re: [PATCH 0/7] Add support for storage element depopulation

[Hannes Reinecke <hare@suse.de>]

On 10/5/26 11:46 AM, Damien Le Moal wrote:
> Jens,
> 
> These patches define a new set of block device operations for generically
> using from the block layer the storage element depopulation feature of
> zoned block devices. Support for this feature is added to the SCSI disk
> driver and an emulation of this feature added to the zloop driver.
> 
> The management operations can be accessed using block layer API, which is
> intended for file systems (e.g. zonefs and XFS), as well as using ioctls
> for users using zoned disks directly from user space.
> 
> Damien Le Moal (7):
>    block: fail reads to offline zones early
>    block: introduce storage element management
>    block: add storage element management ioctls
>    zloop: add storage element emulation
>    zloop: add degrade_element control command
>    scsi: sd_zbc: always revalidate zones for disks supporting head depopulation
>    scsi: sd_zbc: define storage element management operations
> 
I wonder: shouldn't we send a uevent after either operation?
I guess that this would be helpful for admins, and not forgetting
udev which might want to re-run any rules the admin might have
configured.

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@suse.de                                +49 911 74053 688
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