extern struct vfsmount * sysfs_mount;
-extern kmem_cache_t *sysfs_dir_cachep;
+extern struct kmem_cache *sysfs_dir_cachep;
extern struct inode * sysfs_new_inode(mode_t mode, struct sysfs_dirent *);
extern int sysfs_create(struct dentry *, int mode, int (*init)(struct inode *));