函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\rcu\tree.c Create Date:2022-07-27 11:25:58
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:Return the root node of the rcu_state structure.

函数原型:static struct rcu_node *rcu_get_root(void)

返回类型:struct rcu_node

参数:

528  返回:Hierarchy. [0]
调用者
名称描述
rcu_gp_initInitialize a new grace period. Return false if no grace period required.
rcu_gp_fqs_check_wakeHelper function for swait_event_idle_exclusive() wakeup at force-quiescent-state* time.
rcu_gp_fqsDo one round of quiescent-state forcing.
rcu_gp_fqs_loopLoop doing repeated quiescent-state forcing until the grace period ends.
rcu_gp_cleanupClean up after the old grace period.
rcu_report_qs_rspReport a full set of quiescent states to the rcu_state data structure
rcutree_prepare_cpuInvoked early in the CPU-online process, when pretty much all services* are available. The incoming CPU is not present.* Initializes a CPU's per-CPU RCU data. Note that only one online or* offline event can be happening at a given time
rcu_spawn_gp_kthreadSpawn the kthreads that handle RCU's grace periods.
print_other_cpu_stall
print_cpu_stall
show_rcu_gp_kthreadsShow the state of the grace-period kthreads.
rcu_check_gp_start_stallThis function checks for grace-period requests that fail to motivate* RCU to come out of its idle mode.
exp_funnel_lockFunnel-lock acquisition for expedited grace periods
synchronize_sched_expedited_wait
synchronize_rcu_expeditedsynchronize_rcu_expedited - Brute-force RCU grace period* Wait for an RCU grace period, but expedite it