arch/um/os-Linux/process.c

75

return waitpid(-1, &status, WNOHANG);

arch/um/os-Linux/util.c

152

while ((pid = waitpid(-1, NULL, WNOHANG | __WALL)) > 0)

kernel/exit.c

1704

if (!retval && !(wo->wo_flags & WNOHANG))

kernel/exit.c

1743

if (options & ~(WNOHANG|WNOWAIT|WEXITED|WSTOPPED|WCONTINUED|

kernel/exit.c

1790

wo->wo_flags |= WNOHANG;

kernel/exit.c

1806

if (!ret && !(options & WNOHANG) && (wo.wo_flags & WNOHANG))

kernel/exit.c

1854

if (options & ~(WNOHANG|WUNTRACED|WCONTINUED|

tools/lib/subcmd/run-command.c

177

pid_t waiting = waitpid(cmd->pid, &status, block ? 0 : WNOHANG);

tools/perf/builtin-daemon.c

418

pid = waitpid(session->pid, &status, WNOHANG);

tools/perf/builtin-stat.c

632

child_exited = waitpid(child_pid, &status, WNOHANG);

tools/perf/util/evlist.c

1616

waitpid(evlist->workload.pid, &status, WNOHANG);

tools/testing/selftests/kselftest_harness.h

1010

child = waitpid(t->pid, &status, WNOHANG);

tools/testing/selftests/kvm/hardware_disable_test.c

134

if (pid != waitpid(pid, &status, WNOHANG))

tools/testing/selftests/kvm/hardware_disable_test.c

170

r = waitpid(pid, &s, WNOHANG);

tools/testing/selftests/nolibc/nolibc-test.c

1455

CASE_TEST(waitpid_min); EXPECT_SYSER(1, waitpid(INT_MIN, &tmp, WNOHANG), -1, ESRCH); break;

tools/testing/selftests/nolibc/nolibc-test.c

1456

CASE_TEST(waitpid_child); EXPECT_SYSER(1, waitpid(getpid(), &tmp, WNOHANG), -1, ECHILD); break;

tools/testing/selftests/perf_events/remove_on_exec.c

148

ASSERT_EQ(waitpid(pid_exec, &tmp, WNOHANG), 0); /* Child is running. */

tools/testing/selftests/perf_events/remove_on_exec.c

157

EXPECT_EQ(waitpid(pid_exec, &tmp, WNOHANG), 0); /* Should still be running. */

tools/testing/selftests/perf_events/remove_on_exec.c

190

EXPECT_EQ(waitpid(pid_exec, &tmp, WNOHANG), 0); /* Should still be running. */

tools/testing/selftests/perf_events/remove_on_exec.c

219

EXPECT_EQ(waitpid(pids[i], &tmp, WNOHANG), 0);

tools/testing/selftests/pidfd/pidfd_wait.c

202

ret = sys_waitid(P_PIDFD, pidfd, &info, WEXITED | WNOHANG);

tools/testing/selftests/ptrace/vmaccess.c

62

k = waitpid(-1, &s, WNOHANG);

tools/testing/selftests/rlimits/rlimits-per-userns.c

120

pid_t ret = waitpid(child[i], &wstatus[i], WNOHANG);

tools/testing/selftests/timers/clocksource-switch.c

177

while (pid != waitpid(pid, &status, WNOHANG))

tools/testing/selftests/timers/skew_consistency.c

55

while (pid != waitpid(pid, &ret, WNOHANG)) {

tools/tracing/rtla/src/timerlat_u.c

184

pid = waitpid(-1, &wstatus, WNOHANG);