blk_mq_init_sq

Name:Helper for setting up a queue with mq ops, given queue depth, and* the passed in mq ops flags.

Proto:struct request_queue *blk_mq_init_sq_queue(struct blk_mq_tag_set *set, const struct blk_mq_ops *ops, unsigned int queue_depth, unsigned int set_flags)

Type:struct request_queue

Parameter:

Type	Parameter	Name
struct blk_mq_tag_set *	set
const struct blk_mq_ops *	ops
unsigned int	queue_depth
unsigned int	set_flags

2691

memset(set, 0, size of set )

2692

ops = ops

2693

nr_hw_queues = 1

2694

nr_maps = 1

2695

queue_depth = queue_depth

2696

numa_node = NUMA_NO_NODE

2697

flags = set_flags

2699

ret = Alloc a tag set to be associated with one or more request queues.* May fail with EINVAL for various error conditions. May adjust the* requested depth down, if it's too large. In that case, the set* value will be stored in set->queue_depth.

2700

If ret Then Return ERR_PTR(ret)

2703

q = blk_mq_init_queue(set)

2704

If IS_ERR(q) Then

2705

blk_mq_free_tag_set(set)

2706

Return q

2709

Return q

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