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 11:28:18
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Take a snapshot of the expedited-grace-period counter.

函数原型：static unsigned long rcu_exp_gp_seq_snap(void)

返回类型：unsigned long

参数：无

48  smp_mb()
49  s等于_seq_snap - Take a snapshot of the update side's sequence number.* This function returns the earliest value of the grace-period sequence number* that will indicate that a full grace period has elapsed since the current* time
50  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.("snap"))
51  返回:s
调用者
名称描述
synchronize_rcu_expeditedsynchronize_rcu_expedited - Brute-force RCU grace period* Wait for an RCU grace period, but expedite it