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 11:28:40
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Common code to drive an expedited grace period forward, used by* workqueues and mid-boot-time tasks.

函数原型：static void rcu_exp_sel_wait_wake(unsigned long s)

返回类型：void

参数：

类型参数名称
unsigned longs
573  Select the nodes that the upcoming expedited grace period needs* to wait for.
576  Wait for the current expedited grace period to complete, and then* wake up everyone who piggybacked on the just-completed expedited* grace period. Also update all the ->exp_seq_rq counters as needed* in order to avoid counter-wrap problems.
调用者
名称描述
wait_rcu_exp_gpWork-queue handler to drive an expedited grace period forward.
synchronize_rcu_expeditedsynchronize_rcu_expedited - Brute-force RCU grace period* Wait for an RCU grace period, but expedite it