On 7/4/23 20:17, Yu Kuai wrote:
- currently borrowed tags will never be returned untill queue is idle, I should figure out a way to return borrowed tags if this queue is not busy, so that other queues can borrow tag from this queue.
At least for UFS this is a significant disadvantage. If e.g. one SCSI command is sent to the UFS WLUN every 20 seconds and the request queue timeout is 30 seconds then borrowed tags will never be returned. The complexity of this patch series is a concern to me. The complexity of this patch series may be a barrier towards merging this patch series in the upstream kernel. Thanks, Bart.
