perf_swevent_init_cpu

Name:perf_swevent_init_cpu

Proto:static void perf_swevent_init_cpu(unsigned int cpu)

Type:void

Parameter:

Type	Parameter	Name
unsigned int	cpu

12400

swhash = per_cpu(swevent_htable, cpu)

12402

mutex_lock( & hlist_mutex)

12403

If hlist_refcount > 0 && Not Deref the hlist from the update side Then

12406

hlist = kzalloc_node - allocate zeroed memory from a particular memory node.*@size: how many bytes of memory are required.*@flags: the type of memory to allocate (see kmalloc).*@node: memory node from which to allocate

12407

WARN_ON(!hlist)

12408

cu_assign_pointer() - assign to RCU-protected pointer*@p: pointer to assign to*@v: value to assign (publish)* Assigns the specified value to the specified RCU-protected* pointer, ensuring that any concurrent RCU readers will see* any prior initialization(swevent_hlist, hlist)

12410

mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.

**Caller**
Name	Describe
perf_event_init_cpu

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