Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\bfq-iosched.c Create Date:2022-07-28 17:53:44
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:bfq_bfqq_sync

Proto:int bfq_bfqq_sync(const struct bfq_queue *bfqq)

Type:int

Parameter:

TypeParameterName
const struct bfq_queue *bfqq
154  Return If __builtin_constant_p( synchronous queue ) Then constant_test_bit(( synchronous queue ), ( & status flags )) Else variable_test_bit(( synchronous queue ), ( & status flags ))
Caller
NameDescribe
bfq_serv_to_chargesee the definition of bfq_async_charge_factor for details
bfq_bfqq_handle_idle_busy_switch
bfq_add_request
bfq_may_be_close_cooperator
__bfq_bfqq_recalc_budget__bfq_bfqq_recalc_budget - try to adapt the budget to the @bfqq behavior.*@bfqd: device data.*@bfqq: queue to update.*@reason: reason for expiration.* Handle the feedback on @bfqq budget at queue expiration.* See the body for detailed comments.
bfq_bfqq_is_slowReturn true if the process associated with bfqq is "slow". The slow* flag is used, in addition to the budget timeout, to reduce the* amount of service provided to seeky processes, and thus reduce* their chances to lower the throughput
bfq_better_to_idleFor a queue that becomes empty, device idling is allowed only if* this function returns true for that queue
bfq_update_has_short_ttime