函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-iolatency.c Create Date:2022-07-27 19:21:40
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：iolatency_prfill_limit

函数原型：static u64 iolatency_prfill_limit(struct seq_file *sf, struct blkg_policy_data *pd, int off)

返回类型：u64

参数：

类型参数名称
struct seq_file *sf
struct blkg_policy_data *pd
intoff
870  iolat等于pd_to_lat(pd)
871  dname等于blkg_dev_name(he blkg and policy id this per-policy data belongs to )
873  如果非dname或非min_lat_nsec则返回:0
875  seq_printf(sf, "%s target=%llu\n", dname, 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 )
877  返回:0