列举和Linux内核的ksys_mkdir有相同作用的api

1. mkdir函数：int mkdir(const char *pathname, mode_t mode);

2. mkdirat函数：int mkdirat(int dirfd, const char *pathname, mode_t mode);

3. sys_mkdir函数：long sys_mkdir(const char *pathname, umode_t mode);

4. mkdir_p函数：int mkdir_p(const char *path, mode_t mode);

5. make_directory函数：int make_directory(const char *dir, mode_t mode, bool allow_existing);

6. do_mkdir函数：int do_mkdir(const char *path, umode_t mode);

7. vfat_mkdir函数：int vfat_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);

8. ext4_mkdir函数：int ext4_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);

9. smbfs_mkdir函数：int smbfs_mkdir(struct inode *inode, struct dentry *dentry, umode_t mode);