#ifdef CONFIG_CKRM_RES_BLKIO
-void *cki_tsk_icls(struct task_struct *tsk);
-int cki_tsk_ioprio(struct task_struct *tsk);
+extern void *cki_tsk_icls (struct task_struct *tsk);
+extern int cki_tsk_ioprio (struct task_struct *tsk);
+extern void *cki_tsk_cfqpriv (struct task_struct *tsk);
#endif /* CONFIG_CKRM_RES_BLKIO */