Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\cgroup\legacy_freezer.c Create Date:2022-07-28 11:14:09
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:cgroup_freezing

Proto:bool cgroup_freezing(struct task_struct *task)

Type:bool

Parameter:

TypeParameterName
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 = state & 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  Return ret
Caller
NameDescribe
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