...l differences There are two underlying Linux system calls: eventfd () and the more recent eventfd2 (). The former system call does not implement a flags argument. The latter sys…...l differences There are two underlying Linux system calls: eventfd () and the more recent eventfd2 (). The former system call does not implement a flags argument. The latter sys…...2) 2.6 epoll_pwait (2) 2.6.19 epoll_pwait2 (2) 5.11 epoll_wait (2) 2.6 eventfd (2) 2.6.22 eventfd2 (2) 2.6.27 execv (2) 2.0 SPARC/SPARC64 only, for compatibility with SunOS exec…