percpu_counter_add

Name:percpu_counter_add

Proto:static inline void percpu_counter_add(struct percpu_counter *fbc, s64 amount)

Type:void

Parameter:

Type	Parameter	Name
struct percpu_counter *	fbc
s64	amount

135

Even if we don't have any preemption, we need preempt disable/enable* to be barriers, so that we don't have things like get_user/put_user* that can cause faults and scheduling migrate into our preempt-protected* region.()

136

count += amount

137

preempt_enable()

**Caller**
Name	Describe
fprop_new_period	Declare @periods new periods. It is upto the caller to make sure period* transitions cannot happen in parallel.* The function returns true if the proportions are still defined and false* if aging zeroed out all events
__fprop_inc_single	Event of type pl happened
__fprop_inc_percpu	Event of type pl happened
__fprop_inc_percpu_max	Like __fprop_inc_percpu() except that event is counted only if the given* type has fraction smaller than @max_frac/FPROP_FRAC_BASE

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