On 11/1/22 08:00, Christoph Hellwig wrote: > From: Chao Leng <lengchao@xxxxxxxxxx> > > Drivers that have shared tagsets may need to quiesce potentially a lot > of request queues that all share a single tagset (e.g. nvme). Add an > interface to quiesce all the queues on a given tagset. This interface is > useful because it can speedup the quiesce by doing it in parallel. > > Because some queues should not need to be quiesced (e.g. the nvme > connect_q) when quiescing the tagset, introduce a > QUEUE_FLAG_SKIP_TAGSET_QUIESCE flag to allow this new interface to > ski quiescing a particular queue. > > Signed-off-by: Chao Leng <lengchao@xxxxxxxxxx> > [hch: simplify for the per-tag_set srcu_struct] > 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: Chao Leng <lengchao@xxxxxxxxxx> > Reviewed-by: Hannes Reinecke <hare@xxxxxxx> > --- > Reviewed-by: Chaitanya Kulkarni <kch@xxxxxxxxxx> -ck
