On 9/7/21 8:43 AM, Adrian Hunter wrote:

No.  Requests cannot make progress when ufshcd_state is
UFSHCD_STATE_EH_SCHEDULED_FATAL, and only the error handler can change that,
so if the error handler is waiting to enter the queue and blk_mq_freeze_queue()
is waiting for outstanding requests, they will deadlock.

How about adding the above text as a comment above ufshcd_clear_ua_wluns() such
that this information becomes available to those who have not followed this
conversation?

Thanks,

Bart.