On 3/20/23 22:58, Christoph Hellwig wrote:
On Mon, Mar 20, 2023 at 04:49:05PM -0700, Bart Van Assche wrote:
When requeuing a request to a zoned block device, preserve the LBA order
per zone.
What causes this requeue?
Hi Christoph,
Two examples of why the SCSI core can decide to requeue a command are a
retryable unit attention or ufshcd_queuecommand() returning
SCSI_MLQUEUE_HOST_BUSY. For example, ufshcd_queuecommand() returns
SCSI_MLQUEUE_HOST_BUSY while clock scaling is in progress (changing the
frequency of the link between host controller and UFS device).
Thanks,
Bart.
