函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\rcu\tree_exp.h Create Date:2022-07-27 11:28:25
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Common code for work-done checking.

函数原型：static bool sync_exp_work_done(unsigned long s)

返回类型：bool

参数：

类型参数名称
unsigned longs
260  如果Given a counter snapshot from rcu_exp_gp_seq_snap(), return true* if a full expedited grace period has elapsed since that snapshot* was taken.则
261  trace_rcu_exp_grace_period(Name of structure. , s, Strings used in tracepoints need to be exported via the* tracing system such that tools like perf and trace-cmd can* translate the string address pointers to actual text.("done"))
262  smp_mb()
263  返回:true
265  返回:false
调用者
名称描述
exp_funnel_lockFunnel-lock acquisition for expedited grace periods
synchronize_rcu_expeditedsynchronize_rcu_expedited - Brute-force RCU grace period* Wait for an RCU grace period, but expedite it