Function report |
Source Code:block\bfq-iosched.c |
Create Date:2022-07-28 17:56:25 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:idling_boosts_thr_without_issues
Proto:static bool idling_boosts_thr_without_issues(struct bfq_data *bfqd, struct bfq_queue *bfqq)
Type:bool
Parameter:
Type | Parameter | Name |
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struct bfq_data * | bfqd | |
struct bfq_queue * | bfqq |
4083 | rot_without_queueing = Not blk_queue_nonrot( device request queue ) && Not flag set to one if the driver is showing a queueing behavior |
4089 | If Value for the false possibility is greater at compile time(!bfqq_process_refs(bfqq)) Then Return false |
4092 | bfqq_sequential_and_IO_bound = Not BFQQ_SEEKY(bfqq) && bfq_bfqq_IO_bound(bfqq) && bfq_bfqq_has_short_ttime(bfqq) |
4117 | idling_boosts_thr = rot_without_queueing || ( Not blk_queue_nonrot( device request queue ) || Not flag set to one if the driver is showing a queueing behavior ) && bfqq_sequential_and_IO_bound |
4155 | Return idling_boosts_thr && number of weight-raised busy @bfq_queues == 0 |
Name | Describe |
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bfq_better_to_idle | For a queue that becomes empty, device idling is allowed only if* this function returns true for that queue |
bfq_select_queue | 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. |
bfq_rq_enqueued | Called when a new fs request (rq) is added to bfqq. Check if there's* something we should do about it. |
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