132  * This function prepares the cpu buffer to write a sample.
138  * op_cpu_buffer_write_commit() after preparing the sample. In case of
140  * sample.
148 		 size * sizeof(entry->sample->data[0]));  in op_cpu_buffer_write_reserve()
151 	entry->sample = ring_buffer_event_data(entry->event);  in op_cpu_buffer_write_reserve()
153 	entry->data = entry->sample->data;  in op_cpu_buffer_write_reserve()
155 	return entry->sample;  in op_cpu_buffer_write_reserve()
171 	entry->sample = ring_buffer_event_data(e);  in op_cpu_buffer_read_entry()
173 		/ sizeof(entry->sample->data[0]);  in op_cpu_buffer_read_entry()
174 	entry->data = entry->sample->data;  in op_cpu_buffer_read_entry()
175 	return entry->sample;  in op_cpu_buffer_read_entry()
188 	struct op_sample *sample;  in op_add_code()  local
221 	sample = op_cpu_buffer_write_reserve(&entry, size);  in op_add_code()
222 	if (!sample)  in op_add_code()
225 	sample->eip = ESCAPE_CODE;  in op_add_code()
226 	sample->event = flags;  in op_add_code()
241 	struct op_sample *sample;  in op_add_sample()  local
243 	sample = op_cpu_buffer_write_reserve(&entry, 0);  in op_add_sample()
244 	if (!sample)  in op_add_sample()
247 	sample->eip = pc;  in op_add_sample()
248 	sample->event = event;  in op_add_sample()
354  * oprofile_write_commit(&entry) to commit the sample.
360 	struct op_sample *sample;  in oprofile_write_reserve()  local
370 	sample = op_cpu_buffer_write_reserve(entry, size + 2);  in oprofile_write_reserve()
371 	if (!sample)  in oprofile_write_reserve()
373 	sample->eip = ESCAPE_CODE;  in oprofile_write_reserve()
374 	sample->event = 0;		/* no flags */  in oprofile_write_reserve()