__NR_preadv2      798 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_preadv2, compat_sys_preadv2)
__NR_preadv2      764 include/uapi/asm-generic/unistd.h __SC_COMP(__NR_preadv2, sys_preadv2, compat_sys_preadv2)
__NR_preadv2      764 tools/include/uapi/asm-generic/unistd.h __SC_COMP(__NR_preadv2, sys_preadv2, compat_sys_preadv2)