WNOHANG 146 arch/um/os-Linux/util.c while ((pid = waitpid(-1, NULL, WNOHANG | __WALL)) > 0) WNOHANG 1460 kernel/exit.c if (!retval && !(wo->wo_flags & WNOHANG)) { WNOHANG 1498 kernel/exit.c if (options & ~(WNOHANG|WNOWAIT|WEXITED|WSTOPPED|WCONTINUED| WNOHANG 1590 kernel/exit.c if (options & ~(WNOHANG|WUNTRACED|WCONTINUED| WNOHANG 562 tools/perf/builtin-stat.c while (!waitpid(child_pid, &status, WNOHANG)) { WNOHANG 156 tools/testing/selftests/timers/clocksource-switch.c while (pid != waitpid(pid, &status, WNOHANG)) WNOHANG 57 tools/testing/selftests/timers/skew_consistency.c while (pid != waitpid(pid, &ret, WNOHANG)) {