函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-stat.c Create Date:2022-07-27 18:48:36
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：src is a per-cpu stat, mean isn't initialized

函数原型：void blk_rq_stat_sum(struct blk_rq_stat *dst, struct blk_rq_stat *src)

返回类型：void

参数：

类型参数名称
struct blk_rq_stat *dst
struct blk_rq_stat *src
31  如果非nr_samples则返回
34  min等于两数取小(min, min)
35  max等于两数取大(max, max)
37  mean等于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
40  nr_samples加等于nr_samples
调用者
名称描述
blk_stat_timer_fn
latency_stat_sum