rb_free_aux

Name:rb_free_aux

Proto:void rb_free_aux(struct ring_buffer *rb)

Type:void

Parameter:

Type	Parameter	Name
struct ring_buffer *	rb

758

If _dec_and_test - decrement a refcount and test if it is 0*@r: the refcount* Similar to atomic_dec_and_test(), it will WARN on underflow and fail to* decrement when saturated at REFCOUNT_SATURATED Then __rb_free_aux(rb)

**Caller**
Name	Describe
perf_aux_output_begin	This is called before hardware starts writing to the AUX area to* obtain an output handle and make sure there's room in the buffer
perf_aux_output_end	Commit the data written by hardware into the ring buffer by adjusting* aux_head and posting a PERF_RECORD_AUX into the perf buffer. It is the* pmu driver's responsibility to observe ordering rules of the hardware,

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