task_get

Name:ask_get_css - find and get the css for (task, subsys)*@task: the target task*@subsys_id: the target subsystem ID* Find the css for the (@task, @subsys_id) combination, increment a* reference on and return it. This function is guaranteed to return a

Proto:static inline struct cgroup_subsys_state *task_get_css(struct task_struct *task, int subsys_id)

Type:struct cgroup_subsys_state

Parameter:

Type	Parameter	Name
struct task_struct *	task
int	subsys_id

508

_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

509

When (true) cycle

510

css = ask_css - obtain css for (task, subsys)*@task: the target task*@subsys_id: the target subsystem ID* See task_css_check().

517

If Value is more likely to compile time(ss_tryget - try to obtain a reference on the specified css*@css: target css* Obtain a reference on @css unless it already has reached zero and is* being released. This function doesn't care whether @css is on or* offline) Then Break

519

cpu_relax()

521

_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()

522

Return css

**Caller**
Name	Describe
get_current_rdmacg

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion

Function report