int pcc_readwrite_attach_fini(struct file *file, struct inode *inode,
__u32 gen, bool lease_broken, int rc,
bool attached);
-int pcc_ioctl_detach(struct inode *inode);
+int pcc_ioctl_detach(struct inode *inode, __u32 opt);
int pcc_ioctl_state(struct file *file, struct inode *inode,
struct lu_pcc_state *state);
void pcc_file_init(struct pcc_file *pccf);