__NR_eventfd 323 arch/x86/include/generated/uapi/asm/unistd_32.h #define __NR_eventfd 323 __NR_eventfd 288 arch/x86/include/generated/uapi/asm/unistd_64.h #define __NR_eventfd 284 __NR_eventfd 251 arch/x86/include/generated/uapi/asm/unistd_x32.h #define __NR_eventfd (__X32_SYSCALL_BIT + 284)