622 	int trace_fd;  in __cmd_ftrace()  local
655 	trace_fd = open(trace_file, O_RDONLY);  in __cmd_ftrace()
659 	if (trace_fd < 0) {  in __cmd_ftrace()
664 	fcntl(trace_fd, F_SETFL, O_NONBLOCK);  in __cmd_ftrace()
665 	pollfd.fd = trace_fd;  in __cmd_ftrace()
692 			int n = read(trace_fd, buf, sizeof(buf));  in __cmd_ftrace()
714 		int n = read(trace_fd, buf, sizeof(buf));  in __cmd_ftrace()
722 	close(trace_fd);  in __cmd_ftrace()
924 	int trace_fd;  in __cmd_latency()  local
932 	trace_fd = prepare_func_latency(ftrace);  in __cmd_latency()
933 	if (trace_fd < 0)  in __cmd_latency()
936 	fcntl(trace_fd, F_SETFL, O_NONBLOCK);  in __cmd_latency()
937 	pollfd.fd = trace_fd;  in __cmd_latency()
950 			int n = read(trace_fd, buf, sizeof(buf) - 1);  in __cmd_latency()
968 		int n = read(trace_fd, buf, sizeof(buf) - 1);  in __cmd_latency()
979 	close(trace_fd);  in __cmd_latency()
1208 	int trace_fd;  in __cmd_profile()  local
1244 	trace_fd = open(trace_file, O_RDONLY);  in __cmd_profile()
1248 	if (trace_fd < 0) {  in __cmd_profile()
1253 	fcntl(trace_fd, F_SETFL, O_NONBLOCK);  in __cmd_profile()
1262 	io__init(&io, trace_fd, buf, sizeof(buf));  in __cmd_profile()
1298 	close(trace_fd);  in __cmd_profile()