+extern void __delayacct_freepages_start(void);
+extern void __delayacct_freepages_end(void);
+
+static inline int delayacct_is_task_waiting_on_io(struct task_struct *p)
+{
+ if (p->delays)
+ return (p->delays->flags & DELAYACCT_PF_BLKIO);
+ else
+ return 0;
+}