perf_event_read_event

Name:perf_event_read_event

Proto:static void perf_event_read_event(struct perf_event *event, struct task_struct *task)

Type:void

Parameter:

Type	Parameter	Name
struct perf_event *	event
struct task_struct *	task

7005

struct perf_read_event read_event = {header = {type = PERF_RECORD_READ, misc = 0, size = size of read_event + read_size, }, pid = perf_event_pid(event, task), tid = perf_event_tid(event, task), }

7016

perf_event_header__init_id( & header, & sample, event)

7017

ret = perf_output_begin( & handle, event, size)

7018

If ret Then Return

7021

perf_output_put( & handle, read_event)

7022

XXX PERF_SAMPLE_READ vs inherited events seems difficult.* The problem is that its both hard and excessively expensive to iterate the* child list, not to mention that its impossible to IPI the children running* on another CPU, from interrupt/NMI context.

7023

perf_event__output_id_sample(event, & handle, & sample)

7025

perf_output_end( & handle)

**Caller**
Name	Describe
sync_child_event

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