Function report |
Source Code:block\bfq-iosched.c |
Create Date:2022-07-28 17:56:23 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:If we expire a queue that is actively waiting (i.e., with the* device idled) for the arrival of a new request, then we may incur* the timestamp misalignment problem described in the body of the* function __bfq_activate_entity
Proto:static bool bfq_may_expire_for_budg_timeout(struct bfq_queue *bfqq)
Type:bool
Parameter:
Type | Parameter | Name |
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struct bfq_queue * | bfqq |
4068 | bfq_log_bfqq(parent bfq_data , bfqq, "may_budget_timeout: wait_request %d left %d timeout %d", bfq_bfqq_wait_request(bfqq), bfq_bfqq_budget_left(bfqq) >= budget, used also to calculate F_i: F_i = S_i + @budget / @weight / 3, Budget timeout is not implemented through a dedicated timer, but* just checked on request arrivals and completions, as well as on* idle timer expirations.) |
Name | Describe |
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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_completed_request |
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