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 11:26:51
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：rcu_cleanup_dead_rnp

函数原型：static void rcu_cleanup_dead_rnp(struct rcu_node *rnp_leaf)

返回类型：void

参数：

类型参数名称
struct rcu_node *rnp_leaf
2084  rnp等于rnp_leaf
2086  raw_lockdep_assert_held_rcu_node(rnp_leaf)
2087  如果非IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm',* 0 otherwise.(CONFIG_HOTPLUG_CPU)或WARN_ON_ONCE(qsmaskinit)或WARN_ON_ONCE(rcu_preempt_has_tasks(rnp_leaf))则返回
2091  循环
2092  mask等于Mask to apply to parent qsmask.
2093  rnp等于cu_node tree?
2094  如果非rnp则退出
2096  Wrappers for the rcu_node::lock acquire and release(rnp)
2097  qsmaskinit与等于mask的反
2099  WARN_ON_ONCE(CPUs or groups that need to switch in )
2100  如果qsmaskinit则
2101  raw_spin_unlock_rcu_node(rnp)
2103  返回
2105  raw_spin_unlock_rcu_node(rnp)
调用者
名称描述
rcu_gp_initInitialize a new grace period. Return false if no grace period required.