Commit f9b6b98d authored by Hannes Reinecke's avatar Hannes Reinecke Committed by Ilya Dryomov
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rbd: enable multiple blk-mq queues 



Allocate one queue per CPU and get a performance boost from
higher parallelism.

Signed-off-by: default avatarHannes Reinecke <hare@suse.de>
Reviewed-by: default avatarIlya Dryomov <idryomov@gmail.com>
Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent 59e542c8

drivers/block/rbd.c

+1 −1
Original line number Diff line number Diff line
@@ -4970,7 +4970,7 @@ static int rbd_init_disk(struct rbd_device *rbd_dev) 
	rbd_dev->tag_set.queue_depth = rbd_dev->opts->queue_depth;

	rbd_dev->tag_set.numa_node = NUMA_NO_NODE;

	rbd_dev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;

	rbd_dev->tag_set.nr_hw_queues = 1;

	rbd_dev->tag_set.nr_hw_queues = num_present_cpus();

	rbd_dev->tag_set.cmd_size = sizeof(struct rbd_img_request);



	err = blk_mq_alloc_tag_set(&rbd_dev->tag_set);