函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\cgroup\legacy_freezer.c Create Date:2022-07-27 12:16:21
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：cgroup_freezing

函数原型：bool cgroup_freezing(struct task_struct *task)

返回类型：bool

参数：

类型参数名称
struct task_struct *task
69  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
70  ret等于state按位与CGROUP_FREEZING
71  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
73  返回:ret
调用者
名称描述
freezing_slow_pathzing_slow_path - slow path for testing whether a task needs to be frozen*@p: task to be tested* This function is called by freezing() if system_freezing_cnt isn't zero* and tests whether @p needs to enter and stay in frozen state. Can be