Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\bfq-iosched.c Create Date:2022-07-28 17:58:32
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:bfq_timeout_sync_show

Proto:static ssize_t bfq_timeout_sync_show(struct elevator_queue *e, char *page)

Type:ssize_t

Parameter:

TypeParameterName
struct elevator_queue *e
char *page
6599  bfqd = elevator_data
6599  __data = * Timeout for bfq_queues to consume their budget; used to * prevent seeky queues from imposing long latencies to * sequential or quasi-sequential ones (this also implies that * seeky queues cannot receive guarantees in the service * domain; after a timeout
6599  If 1 == 1 Then __data = Convert jiffies to milliseconds and back.* Avoid unnecessary multiplications/divisions in the* two most common HZ cases:
6599  Else if 1 == 2 Then __data = div_u64 - unsigned 64bit divide with 32bit divisor*@dividend: unsigned 64bit dividend*@divisor: unsigned 32bit divisor* This is the most common 64bit divide and should be used if possible,* as many 32bit archs can optimize this variant better than a full
6599  Return bfq_var_show(__data, (page))