1133 	if (trace_buffer_iter(iter, iter->cpu_file))  in wait_on_pipe()
1136 	return ring_buffer_wait(iter->trace_buffer->buffer, iter->cpu_file,  in wait_on_pipe()
2315 	int cpu_file = iter->cpu_file;  in __find_next_entry()  local
2325 	if (cpu_file > RING_BUFFER_ALL_CPUS) {  in __find_next_entry()
2326 		if (ring_buffer_empty_cpu(buffer, cpu_file))  in __find_next_entry()
2328 		ent = peek_next_entry(iter, cpu_file, ent_ts, missing_events);  in __find_next_entry()
2330 			*ent_cpu = cpu_file;  in __find_next_entry()
2458 	int cpu_file = iter->cpu_file;  in s_start()  local
2487 		if (cpu_file == RING_BUFFER_ALL_CPUS) {  in s_start()
2491 			tracing_iter_reset(iter, cpu_file);  in s_start()
2511 	trace_access_lock(cpu_file);  in s_start()
2527 	trace_access_unlock(iter->cpu_file);  in s_stop()
2798 	if (iter->cpu_file != RING_BUFFER_ALL_CPUS) {  in trace_empty()
2799 		cpu = iter->cpu_file;  in trace_empty()
2951 	if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in print_snapshot_help()
3067 	iter->cpu_file = tracing_get_cpu(inode);  in __tracing_open()
3086 	if (iter->cpu_file == RING_BUFFER_ALL_CPUS) {  in __tracing_open()
3097 		cpu = iter->cpu_file;  in __tracing_open()
4580 	iter->cpu_file = tracing_get_cpu(inode);  in tracing_open_pipe()
4629 	if (trace_buffer_iter(iter, iter->cpu_file))  in trace_poll()
4638 		return ring_buffer_poll_wait(iter->trace_buffer->buffer, iter->cpu_file,  in trace_poll()
4738 	trace_access_lock(iter->cpu_file);  in tracing_read_pipe()
4763 	trace_access_unlock(iter->cpu_file);  in tracing_read_pipe()
4889 	trace_access_lock(iter->cpu_file);  in tracing_splice_read_pipe()
4913 	trace_access_unlock(iter->cpu_file);  in tracing_splice_read_pipe()
5298 		iter->cpu_file = tracing_get_cpu(inode);  in tracing_snapshot_open()
5336 		if (iter->cpu_file != RING_BUFFER_ALL_CPUS) {  in tracing_snapshot_write()
5346 		if (iter->cpu_file != RING_BUFFER_ALL_CPUS) {  in tracing_snapshot_write()
5358 		if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in tracing_snapshot_write()
5361 			update_max_tr_single(tr, current, iter->cpu_file);  in tracing_snapshot_write()
5366 			if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in tracing_snapshot_write()
5369 				tracing_reset(&tr->max_buffer, iter->cpu_file);  in tracing_snapshot_write()
5539 	info->iter.cpu_file	= tracing_get_cpu(inode);  in tracing_buffers_open()
5587 							  iter->cpu_file);  in tracing_buffers_read()
5596 	trace_access_lock(iter->cpu_file);  in tracing_buffers_read()
5600 				    iter->cpu_file, 0);  in tracing_buffers_read()
5601 	trace_access_unlock(iter->cpu_file);  in tracing_buffers_read()
5747 	trace_access_lock(iter->cpu_file);  in tracing_buffers_splice_read()
5748 	entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
5762 		ref->page = ring_buffer_alloc_read_page(ref->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
5770 					  len, iter->cpu_file, 1);  in tracing_buffers_splice_read()
5794 		entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
5797 	trace_access_unlock(iter->cpu_file);  in tracing_buffers_splice_read()
6949 	iter->cpu_file = RING_BUFFER_ALL_CPUS;  in trace_init_global_iter()
7005 		iter.cpu_file = RING_BUFFER_ALL_CPUS;  in ftrace_dump()
7008 		iter.cpu_file = raw_smp_processor_id();  in ftrace_dump()
7014 		iter.cpu_file = RING_BUFFER_ALL_CPUS;  in ftrace_dump()