1712 	if (trace_buffer_iter(iter, iter->cpu_file))  in wait_on_pipe()
1718 	ret = ring_buffer_wait(iter->array_buffer->buffer, iter->cpu_file, full,  in wait_on_pipe()
2850 	int cpu_file = iter->cpu_file;  in __find_next_entry()  local
2860 	if (cpu_file > RING_BUFFER_ALL_CPUS) {  in __find_next_entry()
2861 		if (ring_buffer_empty_cpu(buffer, cpu_file))  in __find_next_entry()
2863 		ent = peek_next_entry(iter, cpu_file, ent_ts, missing_events);  in __find_next_entry()
2865 			*ent_cpu = cpu_file;  in __find_next_entry()
3228 	int cpu_file = iter->cpu_file;  in s_start()  local
3253 		if (cpu_file == RING_BUFFER_ALL_CPUS) {  in s_start()
3257 			tracing_iter_reset(iter, cpu_file);  in s_start()
3277 	trace_access_lock(cpu_file);  in s_start()
3288 	trace_access_unlock(iter->cpu_file);  in s_stop()
3633 	if (iter->cpu_file != RING_BUFFER_ALL_CPUS) {  in trace_empty()
3634 		cpu = iter->cpu_file;  in trace_empty()
3797 	if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in print_snapshot_help()
3949 	iter->cpu_file = tracing_get_cpu(inode);  in __tracing_open()
3973 	if (iter->cpu_file == RING_BUFFER_ALL_CPUS) {  in __tracing_open()
3981 		cpu = iter->cpu_file;  in __tracing_open()
5837 	iter->cpu_file = cpu;  in tracing_open_pipe()
5869 		close_pipe_on_cpu(tr, iter->cpu_file);  in tracing_release_pipe()
5886 	if (trace_buffer_iter(iter, iter->cpu_file))  in trace_poll()
5895 		return ring_buffer_poll_wait(iter->array_buffer->buffer, iter->cpu_file,  in trace_poll()
6011 	trace_access_lock(iter->cpu_file);  in tracing_read_pipe()
6049 	trace_access_unlock(iter->cpu_file);  in tracing_read_pipe()
6163 	trace_access_lock(iter->cpu_file);  in tracing_splice_read_pipe()
6188 	trace_access_unlock(iter->cpu_file);  in tracing_splice_read_pipe()
7184 		iter->cpu_file = tracing_get_cpu(inode);  in tracing_snapshot_open()
7234 		if (iter->cpu_file != RING_BUFFER_ALL_CPUS)  in tracing_snapshot_write()
7242 		if (iter->cpu_file != RING_BUFFER_ALL_CPUS)  in tracing_snapshot_write()
7247 					&tr->array_buffer, iter->cpu_file);  in tracing_snapshot_write()
7254 		if (iter->cpu_file == RING_BUFFER_ALL_CPUS) {  in tracing_snapshot_write()
7259 			smp_call_function_single(iter->cpu_file, tracing_swap_cpu_buffer,  in tracing_snapshot_write()
7266 			if (iter->cpu_file == RING_BUFFER_ALL_CPUS)  in tracing_snapshot_write()
7269 				tracing_reset_cpu(&tr->snapshot_buffer, iter->cpu_file);  in tracing_snapshot_write()
7832 	info->iter.cpu_file	= tracing_get_cpu(inode);  in tracing_buffers_open()
7891 							  iter->cpu_file);  in tracing_buffers_read()
7896 			info->spare_cpu = iter->cpu_file;  in tracing_buffers_read()
7908 	trace_access_lock(iter->cpu_file);  in tracing_buffers_read()
7912 				    iter->cpu_file, 0);  in tracing_buffers_read()
7913 	trace_access_unlock(iter->cpu_file);  in tracing_buffers_read()
7959 	ring_buffer_wake_waiters(iter->array_buffer->buffer, iter->cpu_file);  in tracing_buffers_flush()
8077 	trace_access_lock(iter->cpu_file);  in tracing_buffers_splice_read()
8078 	entries = ring_buffer_entries_cpu(iter->array_buffer->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
8092 		ref->page = ring_buffer_alloc_read_page(ref->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
8099 		ref->cpu = iter->cpu_file;  in tracing_buffers_splice_read()
8102 					  len, iter->cpu_file, 1);  in tracing_buffers_splice_read()
8119 		entries = ring_buffer_entries_cpu(iter->array_buffer->buffer, iter->cpu_file);  in tracing_buffers_splice_read()
8122 	trace_access_unlock(iter->cpu_file);  in tracing_buffers_splice_read()
8168 					       iter->cpu_file,  in tracing_buffers_ioctl()
8176 						  iter->cpu_file);  in tracing_buffers_ioctl()
8190 	ring_buffer_wake_waiters(iter->array_buffer->buffer, iter->cpu_file);  in tracing_buffers_ioctl()
8242 	ring_buffer_map_dup(iter->array_buffer->buffer, iter->cpu_file);  in tracing_buffers_mmap_open()
8250 	WARN_ON(ring_buffer_unmap(iter->array_buffer->buffer, iter->cpu_file));  in tracing_buffers_mmap_close()
8283 	ret = ring_buffer_map(iter->array_buffer->buffer, iter->cpu_file, vma);  in tracing_buffers_mmap()
10311 	iter->cpu_file = RING_BUFFER_ALL_CPUS;  in trace_init_iter()
10369 		iter.cpu_file = raw_smp_processor_id();  in ftrace_dump_one()
10371 		iter.cpu_file = RING_BUFFER_ALL_CPUS;  in ftrace_dump_one()