Re: [PATCH 3/7] block: add storage element management ioctls

[Hannes Reinecke <hare@suse.de>]

On 10/5/26 11:46 AM, Damien Le Moal wrote:
> Define the new ioctl commands BLKGETNRSTORELEMS, BLKREPORTSTORELEMS,
> BLKREMOVESTORELEM, and BLKRESTORESTORELEMS to provide users accessing
> zoned block devices directly with an interface to the storage elements
> management operations of the block layer.
> 
> The ioctls BLKGETNRSTORELEMS and BLKREPORTSTORELEMS are defined to
> respectively get the number of storage elements of a zoned device and to
> get an array of struct blk_storage_element describing the current state of
> the device storage elements.
> 
> The ioctl BLKREMOVESTORELEM can be used to remove (depopulate) a storage
> element that has a degraded status (i.e. BLK_SE_STS_DEGRADED).
> 
> Finally, the BLKRESTORESTORELEMS ioctl interfaces with
> bdev_restore_storage_elements() to restore the depopulated storage
> elements of a zoned device.
> 
Reviewed-by: Hannes Reinecke <hare@kernel.org>

Cheers,

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