函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\time\timekeeping.c Create Date:2022-07-27 11:41:39
Last Modify:2020-03-12 14:18:49 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：pdate_fast_timekeeper - Update the fast and NMI safe monotonic timekeeper.*@tkr: Timekeeping readout base from which we take the update* We want to use this from any context including NMI and tracing /* instrumenting the timekeeping code itself.

函数原型：static void update_fast_timekeeper(const struct tk_read_base *tkr, struct tk_fast *tkf)

返回类型：void

参数：

类型参数名称
const struct tk_read_base *tkr
struct tk_fast *tkf
404  base等于base
407  aw_write_seqcount_latch - redirect readers to even/odd copy*@s: pointer to seqcount_t* The latch technique is a multiversion concurrency control method that allows* queries during non-atomic modifications. If you can guarantee queries never
410  内存复制(base, tkr, base的长度)
413  aw_write_seqcount_latch - redirect readers to even/odd copy*@s: pointer to seqcount_t* The latch technique is a multiversion concurrency control method that allows* queries during non-atomic modifications. If you can guarantee queries never
416  内存复制(base + 1, base, base的长度)
调用者
名称描述
halt_fast_timekeeperhalt_fast_timekeeper - Prevent fast timekeeper from accessing clocksource.*@tk: Timekeeper to snapshot.* It generally is unsafe to access the clocksource after timekeeping has been* suspended, so take a snapshot of the readout base of @tk and use it as the
timekeeping_updatemust hold timekeeper_lock