On Mon, Nov 22, 2021 at 03:55:36PM +0200, Sagi Grimberg wrote: > > > > > Add helper of blk_mq_global_quiesce_wait() for supporting to quiesce > > > > queues in parallel, then we can just wait once if global quiesce wait > > > > is allowed. > > > > > > blk_mq_global_quiesce_wait() is a poor name... global is scope-less and > > > obviously it has a scope. > > > > How about blk_mq_shared_quiesce_wait()? or any suggestion? > > Shared between what? All request queues in one host-wide, both scsi and nvme has such requirement. > > Maybe if the queue has a non-blocking tagset, it can have a "quiesced" > flag that is cleared in unquiesce? then the callers can just continue > to iterate but will only wait the rcu grace period once. Yeah, that is what these patches try to implement. Thanks Ming
