1147 	if (trace_buffer_iter(iter, iter->cpu_file))  in wait_on_pipe()
1150 	return ring_buffer_wait(iter->trace_buffer->buffer, iter->cpu_file,  in wait_on_pipe()
2312 	int cpu_file = iter->cpu_file;  in __find_next_entry()  local
2322 	if (cpu_file > RING_BUFFER_ALL_CPUS) {  in __find_next_entry()
2323 		if (ring_buffer_empty_cpu(buffer, cpu_file))  in __find_next_entry()
2325 		ent = peek_next_entry(iter, cpu_file, ent_ts, missing_events);  in __find_next_entry()
2327 			*ent_cpu = cpu_file;  in __find_next_entry()
2455 	int cpu_file = iter->cpu_file;  in s_start()  local
2484 		if (cpu_file == RING_BUFFER_ALL_CPUS) {  in s_start()
2488 			tracing_iter_reset(iter, cpu_file);  in s_start()
2508 	trace_access_lock(cpu_file);  in s_start()
2524 	trace_access_unlock(iter->cpu_file);  in s_stop()
2801 	if (iter->cpu_file != RING_BUFFER_ALL_CPUS) {  in trace_empty()
2802 		cpu = iter->cpu_file;  in trace_empty()
2959 	if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in print_snapshot_help()
3075 	iter->cpu_file = tracing_get_cpu(inode);  in __tracing_open()
3094 	if (iter->cpu_file == RING_BUFFER_ALL_CPUS) {  in __tracing_open()
3105 		cpu = iter->cpu_file;  in __tracing_open()
4611 	iter->cpu_file = tracing_get_cpu(inode);  in tracing_open_pipe()
4662 	if (trace_buffer_iter(iter, iter->cpu_file))  in trace_poll()
4671 		return ring_buffer_poll_wait(iter->trace_buffer->buffer, iter->cpu_file,  in trace_poll()
4771 	trace_access_lock(iter->cpu_file);  in tracing_read_pipe()
4796 	trace_access_unlock(iter->cpu_file);  in tracing_read_pipe()
4922 	trace_access_lock(iter->cpu_file);  in tracing_splice_read_pipe()
4946 	trace_access_unlock(iter->cpu_file);  in tracing_splice_read_pipe()
5331 		iter->cpu_file = tracing_get_cpu(inode);  in tracing_snapshot_open()
5369 		if (iter->cpu_file != RING_BUFFER_ALL_CPUS) {  in tracing_snapshot_write()
5379 		if (iter->cpu_file != RING_BUFFER_ALL_CPUS) {  in tracing_snapshot_write()
5391 		if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in tracing_snapshot_write()
5394 			update_max_tr_single(tr, current, iter->cpu_file);  in tracing_snapshot_write()
5399 			if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in tracing_snapshot_write()
5402 				tracing_reset(&tr->max_buffer, iter->cpu_file);  in tracing_snapshot_write()
5574 	info->iter.cpu_file	= tracing_get_cpu(inode);  in tracing_buffers_open()
5622 							  iter->cpu_file);  in tracing_buffers_read()
5631 	trace_access_lock(iter->cpu_file);  in tracing_buffers_read()
5635 				    iter->cpu_file, 0);  in tracing_buffers_read()
5636 	trace_access_unlock(iter->cpu_file);  in tracing_buffers_read()
5782 	trace_access_lock(iter->cpu_file);  in tracing_buffers_splice_read()
5783 	entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
5797 		ref->page = ring_buffer_alloc_read_page(ref->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
5805 					  len, iter->cpu_file, 1);  in tracing_buffers_splice_read()
5829 		entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
5832 	trace_access_unlock(iter->cpu_file);  in tracing_buffers_splice_read()
7074 	iter->cpu_file = RING_BUFFER_ALL_CPUS;  in trace_init_global_iter()
7131 		iter.cpu_file = RING_BUFFER_ALL_CPUS;  in ftrace_dump()
7134 		iter.cpu_file = raw_smp_processor_id();  in ftrace_dump()
7140 		iter.cpu_file = RING_BUFFER_ALL_CPUS;  in ftrace_dump()