Function report |
Source Code:block\mq-deadline.c |
Create Date:2022-07-28 17:50:30 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:One confusing aspect here is that we get called for a specific* hardware queue, but we may return a request that is for a* different hardware queue. This is because mq-deadline has shared* state for all hardware queues, in terms of sorting, FIFOs, etc.
Proto:static struct request *dd_dispatch_request(struct blk_mq_hw_ctx *hctx)
Type:struct request
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct blk_mq_hw_ctx * | hctx |
| 383 | dd = elevator_data |
| 387 | rq = deadline_dispatch_requests selects the best request according to* read/write expire, fifo_batch, etc |
| 388 | spin_unlock( & lock) |
| 390 | Return rq |
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