sys_pidfd_open 879 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_pidfd_open, sys_pidfd_open) sys_pidfd_open 934 include/linux/syscalls.h asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags); sys_pidfd_open 848 include/uapi/asm-generic/unistd.h __SYSCALL(__NR_pidfd_open, sys_pidfd_open) sys_pidfd_open 848 tools/include/uapi/asm-generic/unistd.h __SYSCALL(__NR_pidfd_open, sys_pidfd_open) sys_pidfd_open 129 tools/testing/selftests/pidfd/pidfd_open_test.c pidfd = sys_pidfd_open(-1, 0); sys_pidfd_open 138 tools/testing/selftests/pidfd/pidfd_open_test.c pidfd = sys_pidfd_open(getpid(), 1); sys_pidfd_open 147 tools/testing/selftests/pidfd/pidfd_open_test.c pidfd = sys_pidfd_open(getpid(), 0); sys_pidfd_open 69 tools/testing/selftests/pidfd/pidfd_poll_test.c pidfd = sys_pidfd_open(child_pid, 0);