Use the block layer helper to initialize the common fields of tag_set such as blk_mq_ops, number of h/w queues, queue depth, command size, numa_node, timeout, BLK_MQ_F_XXX flags, driver data. This initialization is spread all over the block drivers. This avoids the code repetation of the inialization code of the tag set in current block drivers and any future ones. Signed-off-by: Chaitanya Kulkarni <kch@xxxxxxxxxx> --- drivers/block/nbd.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 2a2a1d996a57..01be68d1f722 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1749,14 +1749,9 @@ static struct nbd_device *nbd_dev_add(int index, unsigned int refs) if (!nbd) goto out; - nbd->tag_set.ops = &nbd_mq_ops; - nbd->tag_set.nr_hw_queues = 1; - nbd->tag_set.queue_depth = 128; - nbd->tag_set.numa_node = NUMA_NO_NODE; - nbd->tag_set.cmd_size = sizeof(struct nbd_cmd); - nbd->tag_set.flags = BLK_MQ_F_SHOULD_MERGE | - BLK_MQ_F_BLOCKING; - nbd->tag_set.driver_data = nbd; + blk_mq_init_tag_set(&nbd->tag_set, &nbd_mq_ops, 1, 128, + sizeof(struct nbd_cmd), NUMA_NO_NODE, 0, + BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_BLOCKING, nbd); INIT_WORK(&nbd->remove_work, nbd_dev_remove_work); nbd->backend = NULL; -- 2.29.0
