sys_mkdir          92 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_mkdir, sys_mkdir)
sys_mkdir        1043 include/linux/syscalls.h asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
sys_mkdir        2002 tools/include/nolibc/nolibc.h 	int ret = sys_mkdir(path, mode);