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authorHannes Reinecke <hare@suse.de>2020-01-31 11:37:39 +0100
committerIlya Dryomov <idryomov@gmail.com>2020-03-30 12:42:40 +0200
commitf9b6b98d24f7cec5b8269217f9d4fdec1ca43218 (patch)
treecbba5e01f87be19827df00dd7efc13d73114098f
parent59e542c869895fb37005b60058a342187bb63c61 (diff)
rbd: enable multiple blk-mq queues
Allocate one queue per CPU and get a performance boost from higher parallelism. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
-rw-r--r--drivers/block/rbd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 3af09a0f208b..1e0a6b19ae0d 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -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);