int lustre_fwrite(struct file *file, const void *buf, int len, loff_t *off);
int lustre_fsync(struct file *file);
long l_readdir(struct file * file, struct list_head *dentry_list);
+int l_notify_change(struct vfsmount *mnt, struct dentry *dchild,
+ struct iattr *newattrs);
+int simple_truncate(struct dentry *dir, struct vfsmount *mnt,
+ char *name, loff_t length);
static inline void l_dput(struct dentry *de)
{