On 11/1/22 08:00, Christoph Hellwig wrote: > For submit_bio based queues there is no (S)RCU critical section during > I/O submission and thus nothing to wait for in blk_mq_wait_quiesce_done, > so skip doing any synchronization. No non-mq driver should be calling > this, but for now we have core callers that unconditionally call into it. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > Reviewed-by: Keith Busch <kbusch@xxxxxxxxxx> > Reviewed-by: Sagi Grimberg <sagi@xxxxxxxxxxx> > Reviewed-by: Ming Lei <ming.lei@xxxxxxxxxx> > Reviewed-by: Hannes Reinecke <hare@xxxxxxx> > --- Reviewed-by: Chaitanya Kulkarni <kch@xxxxxxxxxx> -ck