On Mon, 29 May 2023 16:32:37 +0900, Damien Le Moal wrote:
> The scsi driver function sd_read_block_characteristics() always calls
> disk_set_zoned() to a disk zoned model correctly, in case the device
> model changed. This is done even for regular disks to set the zoned
> model to BLK_ZONED_NONE and free any zone related resources if the drive
> previously was zoned.
>
> This behavior significantly impact the time it takes to revalidate disks
> on a large system as the call to disk_clear_zone_settings() done from
> disk_set_zoned() for the BLK_ZONED_NONE case results in the device
> request queued to be frozen, even if there are no zone resources to
> free.
>
> [...]
Applied, thanks!
[1/1] block: fix revalidate performance regression
commit: 47fe1c3064c6bc1bfa3c032ff78e603e5dd6e5bc
Best regards,
--
Jens Axboe
