blk_set_runtime_active (9) - Linux Man Pages
blk_set_runtime_active: Force runtime status of the queue to be active
blk_set_runtime_active - Force runtime status of the queue to be active
void blk_set_runtime_active(struct request_queue
- the queue of the device
If the device is left runtime suspended during system suspend the resume hook typically resumes the device and corrects runtime status accordingly. However, that does not affect the queue runtime PM status which is still "suspended". This prevents processing requests from the queue.