函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:block\blk-throttle.c Create Date:2022-07-27 19:19:37
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：throtl_tg_is_idle

函数原型：static bool throtl_tg_is_idle(struct throtl_grp *tg)

返回类型：bool

参数：

类型参数名称
struct throtl_grp *tg
1834  time等于min_t - return minimum of two values, using the specified type*@type: data type to use*@x: first value*@y: second value(unsignedlong, 5 s , 4 * us )
1835  ret等于 us 恒等于DFL_LATENCY_TARGET或 us 恒等于DFL_IDLE_THRESHOLD或ktime_get_ns()右移10位的值减 ns / 1024 大于time或 ns / 1024 大于 us 或 us 且 total bios 且 bios exceeding latency threshold 乘5小于 total bios
1841  hrotl_log - log debug message via blktrace*@sq: the service_queue being reported*@fmt: printf format string*@args: printf args* The messages are prefixed with "throtl BLKG_NAME" if @sq belongs to a* throtl_grp; otherwise, just "throtl".( & this group's service queue , "avg_idle=%ld, idle_threshold=%ld, bad_bio=%d, total_bio=%d, is_idle=%d, scale=%d", ns / 1024 , us , bios exceeding latency threshold , total bios , ret, scale)
1845  返回:ret
调用者
名称描述
throtl_tg_can_upgrade
throtl_tg_can_downgrade