1155 	if (trace_buffer_iter(iter, iter->cpu_file))  in wait_on_pipe()
1158 	return ring_buffer_wait(iter->trace_buffer->buffer, iter->cpu_file,  in wait_on_pipe()
2354 	int cpu_file = iter->cpu_file;  in __find_next_entry()  local
2364 	if (cpu_file > RING_BUFFER_ALL_CPUS) {  in __find_next_entry()
2365 		if (ring_buffer_empty_cpu(buffer, cpu_file))  in __find_next_entry()
2367 		ent = peek_next_entry(iter, cpu_file, ent_ts, missing_events);  in __find_next_entry()
2369 			*ent_cpu = cpu_file;  in __find_next_entry()
2497 	int cpu_file = iter->cpu_file;  in s_start()  local
2523 		if (cpu_file == RING_BUFFER_ALL_CPUS) {  in s_start()
2527 			tracing_iter_reset(iter, cpu_file);  in s_start()
2547 	trace_access_lock(cpu_file);  in s_start()
2560 	trace_access_unlock(iter->cpu_file);  in s_stop()
2857 	if (iter->cpu_file != RING_BUFFER_ALL_CPUS) {  in trace_empty()
2858 		cpu = iter->cpu_file;  in trace_empty()
3021 	if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in print_snapshot_help()
3137 	iter->cpu_file = tracing_get_cpu(inode);  in __tracing_open()
3156 	if (iter->cpu_file == RING_BUFFER_ALL_CPUS) {  in __tracing_open()
3168 		cpu = iter->cpu_file;  in __tracing_open()
4727 	iter->cpu_file = tracing_get_cpu(inode);  in tracing_open_pipe()
4777 	if (trace_buffer_iter(iter, iter->cpu_file))  in trace_poll()
4786 		return ring_buffer_poll_wait(iter->trace_buffer->buffer, iter->cpu_file,  in trace_poll()
4888 	trace_access_lock(iter->cpu_file);  in tracing_read_pipe()
4913 	trace_access_unlock(iter->cpu_file);  in tracing_read_pipe()
5039 	trace_access_lock(iter->cpu_file);  in tracing_splice_read_pipe()
5063 	trace_access_unlock(iter->cpu_file);  in tracing_splice_read_pipe()
5448 		iter->cpu_file = tracing_get_cpu(inode);  in tracing_snapshot_open()
5486 		if (iter->cpu_file != RING_BUFFER_ALL_CPUS) {  in tracing_snapshot_write()
5496 		if (iter->cpu_file != RING_BUFFER_ALL_CPUS) {  in tracing_snapshot_write()
5503 				&tr->trace_buffer, iter->cpu_file);  in tracing_snapshot_write()
5512 		if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in tracing_snapshot_write()
5515 			update_max_tr_single(tr, current, iter->cpu_file);  in tracing_snapshot_write()
5520 			if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in tracing_snapshot_write()
5523 				tracing_reset(&tr->max_buffer, iter->cpu_file);  in tracing_snapshot_write()
5695 	info->iter.cpu_file	= tracing_get_cpu(inode);  in tracing_buffers_open()
5743 							  iter->cpu_file);  in tracing_buffers_read()
5752 	trace_access_lock(iter->cpu_file);  in tracing_buffers_read()
5756 				    iter->cpu_file, 0);  in tracing_buffers_read()
5757 	trace_access_unlock(iter->cpu_file);  in tracing_buffers_read()
5907 	trace_access_lock(iter->cpu_file);  in tracing_buffers_splice_read()
5908 	entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
5922 		ref->page = ring_buffer_alloc_read_page(ref->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
5930 					  len, iter->cpu_file, 1);  in tracing_buffers_splice_read()
5946 		entries = ring_buffer_entries_cpu(iter->trace_buffer->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
5949 	trace_access_unlock(iter->cpu_file);  in tracing_buffers_splice_read()
7217 	iter->cpu_file = RING_BUFFER_ALL_CPUS;  in trace_init_global_iter()
7274 		iter.cpu_file = RING_BUFFER_ALL_CPUS;  in ftrace_dump()
7277 		iter.cpu_file = raw_smp_processor_id();  in ftrace_dump()
7283 		iter.cpu_file = RING_BUFFER_ALL_CPUS;  in ftrace_dump()