Function report |
Source Code:block\bfq-iosched.c |
Create Date:2022-07-28 17:56:47 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:__bfq_dispatch_request
Proto:static struct request *__bfq_dispatch_request(struct blk_mq_hw_ctx *hctx)
Type:struct request
Parameter:
Type | Parameter | Name |
---|---|---|
struct blk_mq_hw_ctx * | hctx |
4655 | bfqd = elevator_data |
4659 | If Not list_empty - tests whether a list is empty*@head: the list to test. Then |
4666 | If bfqq Then |
4675 | Go to inc_in_driver_start_rq |
4701 | Go to start_rq |
4704 | bfq_log(bfqd, "dispatch requests: %d busy queues", bfq_tot_busy_queues(bfqd)) |
4707 | If bfq_tot_busy_queues(bfqd) == 0 Then Go to exit |
4725 | bfqq = Select a queue for service. If we have a current queue in service,* check whether to continue servicing it, or retrieve and set a new one. |
4731 | If rq Then |
4732 | inc_in_driver_start_rq : |
4734 | start_rq : |
4737 | exit : |
4738 | Return rq |
Name | Describe |
---|---|
bfq_dispatch_request |
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