On Mon, Nov 03, 2014 at 04:40:47PM +0800, Ming Lei wrote: > The above two aren't enough because the big problem is that > drivers need a per-request work structure instead of 'hctx->run_work', > otherwise there are at most NR_CPUS concurrent submissions. > > So the per-request work structure should be exposed to blk-mq > too for the kind of usage, such as .blk_mq_req_work(req) callback > in case of BLK_MQ_F_WORKQUEUE. Hmm. Maybe a better option is to just add a flag to never defer ->queue_rq to a workqueue and let drivers handle the it? -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
